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Every grade calculator, in one place.

A fast, free grade calculator and GPA toolkit for students, teachers and parents — instant answers, no clutter.

20+ tools 100% free Instant results
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Grade Calculator

The classic EZ grader — try it right now.

All calculators

Each tool targets exactly what students search for — and they all link together.

Grade calculators

Grade Calculator

Enter questions and how many were wrong for an instant score.

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Weighted Grade

Combine assignments by their weight to find your overall grade.

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Final Grade

Find the score you need on the final to hit your target grade.

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Grade Percentage

Turn marks out of a total into a clean percentage and letter.

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Letter Grade

Convert any percentage into its letter grade in a click.

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Grade Curve

Apply a curve to a raw score and see the adjusted result.

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GPA calculators

GPA Calculator

Add courses and credits to compute your GPA on a 4.0 scale.

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College GPA

Built for credit-hour courses and semester reporting.

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High School GPA

Tally a high-school GPA from class grades and credits.

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Weighted GPA

Adds Honors and AP/IB bonus points for a weighted GPA.

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Cumulative GPA

Roll multiple terms into one overall cumulative GPA.

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Semester GPA

Calculate the GPA for a single term on its own.

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Charts & reference

Grade Conversion

Convert between percentage, letter grade and GPA instantly.

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Grade Chart

The full percentage-to-letter-to-GPA reference table.

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GPA Scale

How the 4.0 grade-point scale works, with a quick table.

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Popular questions

Quick-answer pages built for thousands of score combinations.

What grade is 17 out of 20? What grade is 45 out of 50? What grade is 23 out of 25? What grade is 9 out of 10? What grade is 18 out of 20?
Why grading calculator

Built to be the fastest answer, every time.

Instant results

Numbers update as you type — no buttons, no reloads, no waiting.

Genuinely useful

Clear formulas, worked examples and the exact letter and GPA — not just a number.

Free & private

No accounts, no fees, nothing stored. It just works on any phone or laptop.

Frequently asked questions

How do I calculate my grade?

Divide what you scored by the total possible, then multiply by 100. For a test, that’s correct answers ÷ total questions × 100. The grade calculator above does it instantly.

Are these calculators free?

Yes — every tool is completely free, with no account, no sign-up and no usage limits.

What grading scale do you use?

The standard US scale: 90+ is an A range, 80s a B, 70s a C, 60s a D and below 60 an F. See the full grade chart for exact ranges and GPA values.