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GPA to Percentage Calculator
Your GPA
Uses the same scale as our percentage-to-GPA calculator, so the conversion round-trips: 87% → 3.63 GPA → 87%.
Example: a 3.63 GPA on the 4.0 scale converts to 87.0% — a B. It round-trips: 87% converts back to a 3.63 GPA on our percentage-to-GPA calculator.
Behind the numbers
How GPA converts to a percentage
There is no single official GPA-to-percentage formula, so this calculator inverts the common US 4.0 scale used on this site. Each letter band covers a 10-point percentage range, and the GPA is interpolated inside the band — so a GPA at the bottom of a band gives the bottom of the percentage range, and a GPA at the top gives the top.
A 3.63 GPA falls in the B band (3.00–3.90, which covers 80–89%): 80 + (3.63 − 3.00) ÷ 0.9 × 10 = 87.0%. A 4.0 GPA is the top of the A band, so it converts to 100%.
The conversion bands
On the 5.0 scale, the GPA is first converted to the 4.0 scale (multiply by 4 ÷ 5) and then converted the same way.
A few comparisons
Example GPA to percentage conversions
| GPA (4.0 scale) | Percentage | Letter grade |
|---|---|---|
| 4.00 | 100.0% | A |
| 3.90 | 90.0% | A |
| 3.63 | 87.0% | B |
| 3.00 | 80.0% | B |
| 2.50 | 75.6% | C |
| 2.00 | 70.0% | C |
| 1.00 | 60.0% | D |
| 0.50 | 30.0% | F |
Every row is computed from the same formula above, so you can check any of them by hand.
Use the number the right way.
Scales differ by school: some schools treat 93% as an A and others treat 90% as an A, so check your school’s official conversion chart before using the percentage on an application.
A weighted GPA (with extra points for honors or AP classes) does not convert the same way — convert the unweighted GPA, or ask your school how it reports percentages.
If a form asks for a percentage and your school only reports a GPA, this conversion is a good estimate, but the school’s own chart is the authoritative one.
Round to one decimal place on applications unless the form asks for a whole number — 87.0% is clearer than 87% when the GPA was 3.63.
Good to know
Your GPA to percentage questions, answered.
Is a 3.63 GPA really 87%?
On the common US 4.0 scale used on this site, yes: 3.63 sits in the B band (80–89%), and the band is interpolated, so 3.63 converts to exactly 87.0%. It round-trips — enter 87% in our percentage-to-GPA calculator and you get 3.63 back.
What is a 3.5 GPA as a percentage?
A 3.5 GPA on the 4.0 scale converts to 85.6%. It is in the B band: 80 + (3.5 − 3.0) ÷ 0.9 × 10 = 85.6%.
How do I convert a GPA on the 5.0 scale?
First convert it to the 4.0 scale by multiplying by 4 ÷ 5, then convert that to a percentage. For example, a 4.5 on the 5.0 scale is 3.6 on the 4.0 scale, which is 86.7%. This calculator does that step for you when you pick the 5.0 scale.
Is this the same scale as the percentage-to-GPA calculator?
Yes, exactly. This page is the reverse of the same conversion: the same bands (A 90–100%, B 80–89%, C 70–79%, D 60–69%, F below 60%) and the same interpolation inside each band, so converting back and forth gives you the same number.