What score do I need on the final exam?

The required final score equals your target grade minus your current grade times one-minus-the-weight, all divided by the weight. So if you have 85%, want 90%, and the final is worth 30%, you need (90 − 85×0.70) ÷ 0.30, which is about 101.7%, not possible, so 90% is out of reach here. The calculator does this maths for you and tells you when a target cannot be met.

What does "impossible" mean here?

It means the score you would need on the final is above 100%, so even a perfect exam will not lift you to your target. When you see that flag, lower the target grade until the required score drops to 100% or below to find what is actually achievable.

Can the final lower a grade I have already earned?

If the required score comes out at zero or below, you have already secured your target: even a 0% on the final keeps you at or above it. A final can still lower your overall grade from where it stands today, because it carries weight, but it cannot pull you below a target you have already locked in.

Is anything I type sent to a server?

No. Everything runs inside your browser, so the work you do here stays on your own device and nothing is uploaded. There is no sign-up and no limit on how many times you use it, and once the page has loaded it keeps working with no connection.

Final Grade Calculator

Find out exactly what you need to score on the final exam to hit your target grade. Enter your current grade, the grade you want and how much the final is worth. Free, in your browser, with no sign-up.

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Read the guide: What Grade Do I Need on the Final?

Current grade %Your grade before the finalTarget grade %The overall grade you wantFinal exam weight %How much the final counts

You need to score

101.67%

on the final to finish with 90% overall.

That is above 100%, so 90% is not reachable from a 85% going into a final worth 30%. Try a lower target.

How to use it

1
Enter your current grade

Put in the percentage you have going into the final, before the exam counts.
2
Set your target

Enter the overall grade you want to finish the course with.
3
See the score you need

Add the final’s weight and the required exam score appears, with a flag if the target is out of reach or already locked in.

When it comes in handy

Exam-week planning

Know the number you actually have to hit so you can study with a clear goal.

Reality checks

See straight away if a target is mathematically impossible, so you can set a realistic one.

Easing the pressure

Find out when you have already secured your grade and the final cannot drag you below it.

Instant, exact & 100% in your browser

The conversion runs right here in your browser using exact, standard factors. Nothing you type is sent to a server, there is no sign-up and no limit, and once the page has loaded it keeps working even with no connection.

Frequently asked questions

What score do I need on the final exam?: The required final score equals your target grade minus your current grade times one-minus-the-weight, all divided by the weight. So if you have 85%, want 90%, and the final is worth 30%, you need (90 − 85×0.70) ÷ 0.30, which is about 101.7%, not possible, so 90% is out of reach here. The calculator does this maths for you and tells you when a target cannot be met.
What does "impossible" mean here?: It means the score you would need on the final is above 100%, so even a perfect exam will not lift you to your target. When you see that flag, lower the target grade until the required score drops to 100% or below to find what is actually achievable.
Can the final lower a grade I have already earned?: If the required score comes out at zero or below, you have already secured your target: even a 0% on the final keeps you at or above it. A final can still lower your overall grade from where it stands today, because it carries weight, but it cannot pull you below a target you have already locked in.
Is anything I type sent to a server?: No. Everything runs inside your browser, so the work you do here stays on your own device and nothing is uploaded. There is no sign-up and no limit on how many times you use it, and once the page has loaded it keeps working with no connection.