Discuss: Roger Chen

You are free to leave a comment here about me or any of the work that I have done.

538 CommentsAdd one

These comments were written by anonymous visitors. Roger’s comments are colored blue.

Sun, 19 May 2019 15:46:47 GMT

So I have a 83.17 in my Geometry class, and my final is worth 10% of our grade. But my lowest test grade is being replaced with a 89, and my lowest test grade is a 62/100. So what do I need to get on the final to maintain a B?

Roger: It depends on how much your tests are worth, how many tests you’ve taken so far, and your current test average. Try out the calculator mode labeled “I need something else”. It should be able to answer your question.

Thu, 16 May 2019 19:28:48 GMT

I am freaking out. I have a 60% in history and I only have 4 quizzes, a unit test, and a final exam. If I got A's and B's on all that I listed before the end of the class, would it bring it up enough to have an overall of 85%??

Roger: Sounds unlikely. The exact answer depends on how much those grades are worth. Try out the calculator mode labeled “I need something else”. It should be able to help.

roger please answer
Thu, 16 May 2019 03:35:19 GMT

roger what college did you go to?

Roger: UC Berkeley

Wed, 15 May 2019 17:24:35 GMT


Tue, 14 May 2019 19:02:51 GMT


Tue, 14 May 2019 19:01:28 GMT


Sat, 11 May 2019 08:44:42 GMT

Roger, just want you to know, u r the only Cal alumni I've been starstruck by. You're so cool man.

Roger: Haha, thanks.

Thu, 09 May 2019 01:22:40 GMT

I have a 90.94% which is 291 out of 320 points in art. Our final project is out of 100 points. What do I need to get on the project to finish the class with a 89.70? And how many points can I miss on the final project?

Roger: You’ll need to score at least 78.18 points out of 100 on your project to get a 89.70% overall.

Hey, roger
Tue, 07 May 2019 13:39:50 GMT

Well, you really are an engineer. Great job! I hope you enjoy your time at google!

Roger: Thanks!

Anna Wright
Sun, 05 May 2019 01:10:42 GMT

so i calculated all my grades that i do have and im at 63.4. my final exam weighs 18.3%. what grade will i need to make a c-

Roger: You’ll need to score at least a 99.5% on your final to raise your overall grade to a 70%.

Fri, 03 May 2019 23:16:46 GMT


Roger: Good luck!

Thu, 02 May 2019 03:22:55 GMT

Hey Roger!

My tests together are worth 40% of my grade. My average test grade is 75, my lowest score is 60. The final is worth 10% and our lowest test grade gets dropped. I also have a second practical. Together they are worth 25%. I got a 91 on the first one. I have a class average of 85. I would like a 90 in the class. What do I need to get on my second practical and final to get a 90? Sorry, I know this was a lot!

Roger: The answer depends on how many tests you’ve taken so far. Try out the calculator mode labeled “I need something else”. It should be able to answer your question.

Lindsey Lorsbach
Tue, 30 Apr 2019 00:35:36 GMT

Rodger u are awesome. I have been using ur calculator and reading blogs for like 5 years now. Do you have a personal instagram page bc you're a ⭐ star ⭐ and one of my personal heroes.


Roger: Glad to help! I don’t use Instagram. I have a Twitter account, but I don’t ever tweet.

Tue, 23 Apr 2019 15:51:01 GMT

I have a 70% in Econ. I have one test left worth 40%, one assignment worth 35%, one final worth 20% and one end of the year test worth 5%. I need to get a 74% or above to pass the class. What do I need to score on each of these to get to a 74% final grade

Roger: Try out the calculator mode labeled “I need something else”. It should be able to answer your question.

Fri, 19 Apr 2019 02:59:19 GMT

Hi, can you please help me? My final grade right now is 53% but I want to get at least 85%.before the end of school.
I have three upcoming exams, if I score a 90% on the three of them and a 80% on the midterm exam what will be my final grade?

Roger: It depends on how much your 3 exams and your midterm are worth. Try out the calculator mode labeled “I need something else”. It may be able to help.

Fri, 12 Apr 2019 01:56:31 GMT

you should add a function to save the class setup in advanced mode so you can change the category grades each time you have a new grade. that way you dont have to keep setting it up every time you get a new grade. just a suggestion!

Roger: Thanks for the feedback! The calculator purposefully doesn’t have any kind of persistence between sessions right now. There are probably privacy implications around storing student educational records in the United States. Storing them in your browser is an option, but introduces potentially unintuitive and confusing behavior. I’ll look into whether it’s possible to implement something like this safely, but I hope this provides some insight.

sad child
Thu, 11 Apr 2019 23:13:52 GMT

hi roger, im really desperate lol

i have a 91 in calc but i recently just recived a real F on the most recent test. tests are worth 50% of our grades and i have one chapter test left before the final. finals are worth 15% of our grades.

how much will my grade drop and what could i get on the next test and the final in order to get myself back up to at least a B?

thanks roger :(

Roger: How many tests have you taken so far? And what did you score on them? Try out the calculator mode labeled “I need something else”. It should be able to answer your question.

Wed, 10 Apr 2019 03:14:53 GMT

Hi roger! So i’m currently at a 90% and I’ve only had one test and that test i got was 4/12. And that 4/12 is worth 30% of my grade. How much would that 90% go down by?

Roger: It depends on how much of your grade is accounted for so far. For example, if your “90%” grade represents 50% of your grade, then your overall grade should go down to a 68.75%.

Wed, 27 Mar 2019 14:56:19 GMT

Hey Roger!
My grade right now in Biology is a 65.65%. I need a 70% to pass the class. I still have 2 test left and the final exam. Test 1 I got a 48%, test 2 I got a 50%, and test 3 I got a 66%.
All 5 total test are 50% of my total grade for the class (100%).
The final exam is 10% of my total grade.
What are the lowest test scores I can get on test 4, 5, and final exam in order to pass the class with a 70%?

Roger: You’ll need to average at least a 72.8% on your 2 remaining tests and your final exam to raise your overall grade to a 70%.

Thu, 28 Feb 2019 02:58:49 GMT

Hey so I have a 96% in world history I got an 88% on my test how low will my grade drop??

Roger: How much is your test worth?

Bill Joy
Mon, 18 Feb 2019 19:25:46 GMT

I agree. It's always pleasant to have Roger respond. Makes my day.

Roger: Haha

Thu, 07 Feb 2019 04:23:41 GMT

the fact that you still respond to people is amazing. thanks for such a marvelous creation.

Roger: Haha, glad to help!

Thu, 31 Jan 2019 02:31:49 GMT

just think you're doing great! your site is awesome, man!! have a good day

Roger: Thanks!

Thu, 24 Jan 2019 07:19:04 GMT

Roger you must be making hella bank from this website. You're a genius <3

Roger: Haha thanks.

Thu, 24 Jan 2019 01:10:03 GMT

My math mark before the exam is 75%. My last exam will be worth 30% of my final mark. What % do I need to get on the exam to finish with a 70% final

Roger: You’ll need to score at least a 58.3% on your last exam to get a 70% overall.

Wed, 23 Jan 2019 03:45:39 GMT

My average grade for both semesters is 45.8 perfect I need a 50 to pass. The final exam is only added to the average grade and nothing is taken away from the 45.8 (essentially it’s what you get without doing the exam) I scored a 33.333 percent on my final worth 20 percent. How much will my mark go up?

Roger: That sounds a bit strange, but I suppose your overall grade should go up by 6.67 percentage points to a 52.47%.

Brayan Emanuel Jimbo
Mon, 21 Jan 2019 00:43:00 GMT

I have a question. I have a average of 86% in reading class.but in my reading class we do work ethics witch we grade ourselves on how we participate, and I got a 93% what is my final average and grade.? Please answer ASAP please

Roger: How much is your “work ethics” category worth?

Mon, 14 Jan 2019 22:41:16 GMT

Roger feeds on the emotional distress of students

Roger: Indeed

Chris Kasprzak
Mon, 14 Jan 2019 12:59:38 GMT

Roger since the day I first saw your beautiful eyes, it was love at first sight, do you feel the same Roger?

Roger: Exactly

Fri, 04 Jan 2019 12:39:46 GMT

My first nine weeks grade was an 88 my second nine weeks was a 98 but I made a 47 on the final exam, it’s worth 20 percent of my grade what would my final grade be? I hope it’s passing

Roger: Your overall grade should be 83.8%.

sophomore gal
Thu, 27 Dec 2018 20:45:43 GMT

Tysm for creating this

Squid burgers
Thu, 20 Dec 2018 02:05:21 GMT

Just wanted to thank you for making the finals calculator. I used it for (ironically) my math midterm and shared it with the class. It caused a lot of panick but we did well. Thanks so much!

Roger: You’re welcome!

Thu, 20 Dec 2018 01:49:27 GMT

I get to drop one assignment of choice with the lowest score but I can’t decide which will have more of a positive impact on my grade.

Assignment #1 falls into the “essay” category weighted at 40%. My current average is 96%, my lowest score is an 87% and there are a total of 16
Assignments in that category.


The other option falls in the “test” category weighted at 35%. My current average is 95.58%, my lowest score is a 70% and there are 6 assignments.

Which assignment should I drop that would be beat for my grade?

Roger: I’d say that dropping your lowest test grade is almost certainly more helpful. If you want more details, try out the calculator mode labeled “I need something else”. It should be able to answer this question.

wilson (like the volleyball)
Wed, 19 Dec 2018 21:02:26 GMT

Hi Roger!
I was wondering why you've chosen not to have ads on this site, with the number of hits it must get.
You help out so many students so much and it would be cool to know you get something out of it too. Thanks for everything!

Roger: Good question! I put ads on only the pages that get the most traffic. In fact, this website has had ads since 2012.

Squid burgers
Wed, 19 Dec 2018 19:59:07 GMT

Why did you choose to make this website?

Roger: I figured that every computer programmer needs a website.

Wed, 19 Dec 2018 12:37:21 GMT

this website both calms and stresses me out but ily and thank you

Roger: You’re welcome!

Claire P
Wed, 19 Dec 2018 11:10:12 GMT

If anyone else needs to calculate what percent they'd need on their final plus the final grade replaces the lowest test score you need to calculate

P=percent needed on final

(%final is worth of final grade x P) + (% other sections are worth x grade in those sections) + (percent test section is worth) x ([(% gotten on previous tests x points that test was worth) + (P x points the lowest test grade was worth)]/total points in test section)

.... I think

Roger: By the way, the Final Grade Calculator already handles this. Try out either the option labeled “My lowest test grade is dropped” or the option labeled “I need something else”. Both of them should be able to answer this question.

grateful student
Wed, 19 Dec 2018 09:15:12 GMT

hey! you're awesome and the fact that you offer your website as a free service is really cool. thank you so much!

Roger: Thanks, and you’re welcome!

a thankful student
Wed, 19 Dec 2018 05:07:02 GMT

Thank you so much for this! I'm a freshman in high school and I'm SO GLAD I found you! I'll be definitely using your website for the rest of my life! Hope you have fun at your Google job!

Roger: Glad to help, and thanks!

big brain mode
Wed, 19 Dec 2018 04:30:44 GMT

In response to an ap lang prompt on whether humans will go extinct soon, I wrote an entire essay about how extinction is inevitable, his wife will leave him for a Italian, his kid will die, and how "This paper, this class, human existence and eventual extinction do not matter in the grand scheme of geological time; instead one should seek a brief respite from the existential dread of the universe (Bieber)". I got a 90. The class average was an 80.

Roger: Haha

Wed, 19 Dec 2018 03:39:02 GMT

Dude, you're a goat for this. Hope your Google job is going great Roger!

Roger: Thanks!

Lord Roger
Tue, 18 Dec 2018 17:52:12 GMT

Did you read my story on the finals grade calculator ( ͡° ͜ʖ ͡°)

Roger: Haha, sure did.

You're mom
Tue, 18 Dec 2018 16:13:31 GMT

Okay, this is epic

Tue, 18 Dec 2018 02:57:23 GMT

i love the subscribe to pewdiepie

Roger: Haha

Tue, 18 Dec 2018 02:19:37 GMT

are you on the furry or gaymer side of the war?

Roger: What war?

Mon, 17 Dec 2018 17:57:35 GMT

In your introduction you begin with first person narrative, but in your second paragraph it switches and is in third person.

Roger: Whoops ヽ(゜~゜o)ノ

Mon, 17 Dec 2018 14:57:40 GMT

what the frickle pickle

tik tok
Fri, 14 Dec 2018 22:11:33 GMT

Hey Roger, I was wondering something and I hope you can help me out. If I hit or I miss, I guess I never miss, huh?

(P.S this is especially troubling because I wanna be Tracer.)


Roger: Yes

Fri, 14 Dec 2018 20:08:26 GMT

Roger, you are truly doing God's work. From all of my friends and classmates we wish you well in life and we would all vote for you for president if you were to run, honest to God. Dead week is no longer a word anymore it has been replaced by #rogerhubszn by all of my fellow high school students in Silicon Valley. God speed.

Roger: Haha, glad to help!

Ben Shapiro
Fri, 14 Dec 2018 18:45:04 GMT

Roger I would like to thank you one 9 year old to another for supporting the fight against T-series. 👏👏

Roger: Haha

Grateful Student
Fri, 14 Dec 2018 04:46:15 GMT

Thank you so much for what you're sharing with the world. I hope you know how amazing you are!

Roger: Glad to help!

Fri, 14 Dec 2018 04:01:29 GMT

Hi Roger, I use your final grade calculator every semester.

I was curious what your average page hit count was per day during finals season.

Roger: Approximately the distance to the moon, in kilometers.

Generic Internet User
Thu, 13 Dec 2018 04:14:03 GMT

HI! Just wanted to say you're doing the Lord's work. I can't think of how many students behinds you've saved, especially mine since I've started high school. I found you first semester freshman year and here I am senior year. Thank you, sir.

Roger: You’re welcome!

Desperate Student
Wed, 12 Dec 2018 04:33:06 GMT

Hi Roger, So I have a 90.61% in my class and my final are worth 15 percent. Can I know what my grade will be without knowing what I got on my final exam? Thanks a lot lol, high school's tough.

Roger: Your overall grade should be between 77% and 92%, depending on exactly what you scored on your final.

Jimmy Bob Joe
Tue, 11 Dec 2018 06:47:31 GMT

Hi roegr, i had a 32prcent but my parents want me to get 42. I want to go to harvaard, my gpa is 1.2 is good?
P.S. I am high schol junor
much love,
Jimy Boby Joe :P

Tue, 11 Dec 2018 03:10:08 GMT

Hi Roger, So I have a 80.81% in my class and my final are 20%. I want to know how would my grade be without knowing what I got on my final exam? Please Help.

Roger: Your grade will be between a 64.7% and a 84.7%, depending on exactly what you scored on your final exam.

Roger's fan
Mon, 10 Dec 2018 23:36:40 GMT

Are you supporting PewDiePie in his war against t-series? If you are, I am.

Roger: Who’s that?

Mon, 10 Dec 2018 21:04:31 GMT

Hi Roger, I have a 40.69 in my biology class and i have to have atleast a 59.5 to pass the class. The final exam is worth 15% of my grade. but she hasn't put in my binder grade which is 10% of my grade and my project which is 10% of my grade

What will i need to make on the test to get that score?

Roger: Assuming that your “40.69%” overall grade represents the other 65% of your coursework, you’ll need to average at least a 94.4% on your final exam, your binder grade, and your project to raise your overall grade to a 59.5%.

e. g. bill joe
Mon, 10 Dec 2018 16:59:02 GMT

yo we really out here tryin to find our final grades on a website, im desprate

Joe Blow
Thu, 06 Dec 2018 19:16:24 GMT

Roger, can you see the ip addresses of people who comment?
i.e. If someone posted two comments under two different names, could you tell it's the same person?
What else do you see?

Roger: Check out the Privacy Policy for all the details about what information is collected.

suffering student
Wed, 05 Dec 2018 00:53:02 GMT

i apprecate this website

Tue, 04 Dec 2018 18:32:08 GMT

Sub to Pewdiepie and all your sins will be forgiven and you will pass your exams

Sat, 01 Dec 2018 17:46:24 GMT

I have a 623.0 in my algebra class and i'm taking a exam next week. My exam is worth 150 points and i need to know what i need to make on it.

Roger: How many points are there total? Try out the calculator mode labeled “I need something else”. It should be able to help.

Thu, 29 Nov 2018 22:53:42 GMT

Hi roger sorry for being so persistent but I'm kinda nervous thank you for your time.

Roger: No problem! I answered your question below.

Thu, 29 Nov 2018 21:55:24 GMT

Hi my test is 2 parts and to pass i need a 50% in total. I got 20% on the fist one what percent do i need to get on the second one to get 50%?

Roger: Assuming each part is worth half of your total grade, you’ll need to score at least an 80% on the second part to get a 50% average.

Mon, 26 Nov 2018 21:52:35 GMT

Hi Roger! I have a 71% in my math class right now, which is fine but I have one more exam that I'm worried about (3 exams total in this quarter, while exams make up 50% of my grade, with a 76% on the 1st exam and 63% on the 2nd), and my final paper (10% of my final grade).

How well would I have to do on the last exam and paper to keep the 71% or better?

If it helps, my homework is 25% of my grade (sitting at a 72% with three more assignments to turn in I think) and my attendance is 15% (I have a 90% in that)

Roger: It seems like your current overall grade should be a 73.6%, not a 71%. How many homework assignments have you completed so far? Try out the calculator mode labeled “I need something else”. It should be able to answer your question.

struggling college student
Tue, 20 Nov 2018 03:25:12 GMT

hello roger, i currently have a 59.86% in a course that i need a C in. we were supposed to have 4 exams but ran out of time to cover material so now we will only have 3 and she will count the highest exam grade twice. i have a 57.25% test average (this course is very hard and i am really struggling). lab makes up 25% of our grade and i am doing very well in lab. what would i need to obtain on this last test 3 to pass the course (pls tell me it's doable)

Roger: What’s your current lab average? Based on the numbers you gave, I inferred that your lab average should be 67.7%, but you mentioned that you were doing very well in your labs. Try out the calculator mode labeled “I need something else”. It should be able to help.

Mon, 29 Oct 2018 04:24:08 GMT

So I want an A but got 80% on my final which was worth 75 points I got 60 which she considered a B my grade is at 96% will I still have an A?

Roger: I don’t quite understand your question.

Wed, 17 Oct 2018 19:02:55 GMT

I'm getting 60% in my accounting course. I would need 70% to receive a passing grade.
I still have:
2 exams remaining (50points) all exams are worth 60% of total grade and we completed 2.
4 homework assignments (10 points each) - we completed 3 and worth 20% of total grade
7 in class assignments (5 points each) - we already completed 5 and its worth 10% of our grade
final exam worth 15 %.

I have tutor hired but is there hope for me if i study like crazy and eat sleep breathe accounting for another 8 weeks?


Roger: Sounds possible. If you want an exact answer, try out the calculator mode labeled “I need something else”. It should be able to help. Good luck!

Mon, 15 Oct 2018 21:54:19 GMT

I have a 93% overall grade in my class right now and I didn’t do an assignment that’s worth 25% what would my overall grade drop to?

Roger: Is your assignment worth 25% of your grade by itself? Or is it part of a category that, along with other assignments, is altogether worth 25% of your grade?

Fri, 05 Oct 2018 12:43:21 GMT

I have a test grade overall of 85 percent. Test count 75 percent of grade and homework 25 percent. I had 100 in homework plus 10 points xtra credit in homework. What will the score be? Thank you!

Roger: Your overall grade should be 91.25%.

Tue, 18 Sep 2018 00:30:26 GMT

My grades are 40/50, 43/50. Final is out of 80. What do I need to get on final to get an 85% in class? Tests are about 80% of grade

Roger: What’s the other 20% of your grade made of? Try out the calculator mode labeled “I need something else”. It should be able to help.

Tue, 11 Sep 2018 20:49:31 GMT

alright so I currently have a 72% in my nursing class I need at least a78% to pass. I have two finals coming up that are both worth 20% of my grade if I pass with at least a B on both will my grade be passing?

Roger: Are your finals each worth 20% of your grade? Or are your two finals altogether worth 20% of your grade? I’ll assume the latter. In that case, you’ll need to average at least a 102% on your final exams in order to raise your overall grade to a 78%.

Tue, 03 Jul 2018 04:06:06 GMT

Hi Roger,
How does a UC weighted GPA of 3.6 and SAT score of 1440 sound for UC Irvine? Or actually which UC can I get into for CS or Electrical Engineering major?
I hope you respond!

Roger: Sounds pretty good to me. I don’t know anything about UC Irvine though.

Thu, 28 Jun 2018 14:00:07 GMT

Test are worth an overall 45 percent of my grade. I have score 100percent on two test and the last test 50 percent. Of the 45 percent, how much of the 45 percent for test grades will I receive?

Roger: Well, your test average should be an 83.3%, assuming that each test is worth one third of your tests category. Then, 83.3% of 45 is 37.5. So, I suppose you’ll receive 37.5% out of the 45%?

Thu, 28 Jun 2018 10:14:55 GMT

My grade is an 80%. What will it end up being if I add 33% to it?

Roger: Well, 80% + 33% is 113%. But one third of 80 is 26.7%. I’m still not sure what you’re asking.

Wed, 27 Jun 2018 21:46:25 GMT

My grade is an 80%. What will it be after I add 1/3 to it?

Roger: I don’t quite understand your question. What do you mean by “add 1/3 to it”?

Wed, 20 Jun 2018 16:26:27 GMT

Man I just come on here to figure out how screwed I am, but then it turns out I'm usually not that screwed. Thanks for helping me not lose sleep Roger

Roger: Glad to help!

Wed, 20 Jun 2018 02:01:22 GMT

What is my overall grade if I have a 95.0 in my class and the final is 15% and I get an F (45.0)?

Roger: Your overall grade should drop to an 87.5%.

Mon, 18 Jun 2018 23:34:57 GMT

OMG how did you even do that, that is so cool, you have got to show me

jane doe
Mon, 18 Jun 2018 20:58:08 GMT

oh and the minimum for an A- is 90/89.5-9

jane doe
Mon, 18 Jun 2018 20:56:49 GMT

responding back to yesterday's question
Currently, the full percentage has not come out but I had gotten 92% 1st 85% 2nd 85% 3rd and for the 4th it is so far 85% and the finals are worth 10% of our grade overall.

Roger: It sounds like your overall grade should be approximately 86.8%. In that case, you’ll need to score at least a 114.3% on your final to raise your overall grade to an 89.5%.

jane doe
Sun, 17 Jun 2018 13:50:25 GMT

I have a B+ average in my biology class
What would I need to get on my exam to boost my grade possibly higher or even an A-?

Roger: Probably an A or an A+. How much is your exam worth? What’s your current grade, expressed as a percentage? And what’s the minimum grade required for an A−?

Sun, 17 Jun 2018 03:16:45 GMT


Discussions are worth 23% of my grade. I’m trying to figure out how much of my total grade I would lose per missed discussion. Each one is worth 2 points out of 40 total possible because there are 20 discussions. I can’t seem to figure out how to calculate it. Thank you!

Roger: It’s not a constant amount. For example, if you miss your first discussion, then you’d have a zero for your entire discussions category, which is worth 23%. But at the end of the year, each discussion should only be worth one-twentieth of 23% (e.g. 1.15%).

Fri, 15 Jun 2018 10:18:41 GMT

So I have a 70% as my grade and lets say I didnt take the final for that class and got a 0% on my final, the final weighs 40%, what would my grade drop down to?

Roger: Is your final worth 40% of your grade by itself? Or is it part of a “tests” category that is altogether worth 40%? In the former case, your grade should drop to a 42%.

Skylar Paige
Thu, 14 Jun 2018 01:38:51 GMT

Hello, I have a 64% in my math class right now. My final is tomorrow and it is worth the last 10% of our grade. What do I need to get on my final in order to move up to a 70% in the class?

Roger: You’ll need to score at least a 124% on your final to get a 70% overall.

Tue, 12 Jun 2018 22:21:38 GMT

I have a 97% in algebra. my final is 57 questions and 20% of my grade. how many can I miss and stay above a 95%.

Roger: You’ll need to score at least 87% on your final, which is about 49.6 questions out of 57.

Mac n Cheese
Thu, 07 Jun 2018 23:00:52 GMT

Hey Roger, thanks for all the support you've given me.

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Mon, 20 May 2019 11:35:03 GMT