GPA Converter
Convert a GPA, percentage, or letter grade you already have into the 4.0, 4.3 and 5.0 weighted scales, plus percentage and letter-grade equivalents — all at once. Need to compute a GPA from your actual courses instead? Use our GPA Calculator.
3.50 GPA (4.0 scale)
4.3 scale: 3.76 · 5.0 weighted scale: 4.38 · Percentage: 89.50% · Letter: A-
4.3/5.0 conversion uses the standard proportional method (GPA ÷ scale × new scale) — schools with a published official conversion policy should use that instead. Need to compute a GPA from your actual courses and credits? Try our GPA Calculator. How we calculate →
GPA converter vs. GPA calculator — which do you need?
This tool converts a GPA (or percentage, or letter grade) you already have into other common scales. If you instead need to compute a GPA from a list of courses, grades and credit hours, use our GPA Calculator — the two tools solve different problems and are cross-linked from each other.
Converting between 4.0, 4.3 and 5.0 scales
Most US schools grade on a 4.0 scale (A = 4.0), but some extend it to 4.3 to recognize an A+ above a plain A, and weighted honors/AP systems often use a 5.0 scale for advanced coursework. The standard proportional method is new GPA = (old GPA ÷ old scale) × new scale — a 3.5 on a 4.0 scale becomes (3.5 ÷ 4.0) × 5.0 = 4.375 on a 5.0 scale. This is a widely used estimate, not a universal standard: if your school publishes its own official conversion table, use that instead.
GPA to percentage
There's no single official GPA-to-percentage formula — schools set their own grading bands — but a commonly used reference chart maps 4.0 to roughly 94.5%, 3.0 to roughly 84.5%, 2.0 to roughly 74.5%, and 1.0 to roughly 64.5%, moving in a straight line (about 1 percentage point per 0.1 GPA). The calculator uses this same linear relationship and flags whenever your GPA falls outside the 1.0-4.0 range the chart actually covers, since anything below that is extrapolated rather than sourced.
GPA to letter grade
The standard US letter scale is A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, D− = 0.7, F = 0 (some schools also count A+ as 4.0, a few as 4.3). Converting a decimal GPA back to a letter finds the closest match on this scale — useful for translating a cumulative GPA into a rough equivalent letter, though it's an approximation since a 3.85 GPA doesn't correspond to a single "real" letter grade the way one course grade does.
Why conversions are estimates, not official policy
Every scale conversion here uses a documented, widely used method — proportional scaling for 4.0/4.3/5.0, and a standard reference chart for percentage — but neither is a universal law. Colleges, high schools, and countries all set their own grading policies, and many admissions offices publish their own conversion tables for exactly this reason. If you're submitting a GPA for an application with a specific required scale, check whether the institution has published its own official conversion method before relying on a general-purpose calculator.
Frequently asked questions
How do I convert a 4.0 GPA to a 5.0 scale?
Divide by the original scale and multiply by the new one: (GPA ÷ 4.0) × 5.0. A 3.5 on a 4.0 scale becomes 4.375 on a 5.0 scale. This is the standard proportional method, not a universal official rule.
What is a 3.5 GPA in percentage?
Using the common linear reference chart, roughly 89.5%. The exact percentage always depends on your school's own grading scale, since there's no single universal GPA-to-percentage formula.
How do I convert my GPA to a letter grade?
Compare it to the standard scale: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, and so on down to F = 0. The calculator finds the closest match, though a cumulative GPA doesn't map to one true letter the way a single course grade does.
What's the difference between the 4.0 and 4.3 GPA scales?
The 4.0 scale tops out at A = 4.0. The 4.3 scale gives an A+ its own value of 4.3, one step above a plain A — used by some schools to distinguish exceptional performance.
Is there an official GPA-to-percentage conversion?
No single universal one — grading bands vary by school. A commonly cited reference chart maps 4.0 to about 94.5% and 1.0 to about 64.5% on a straight line, which is what this calculator uses, but always defer to your school's official policy if it publishes one.
How is this different from a GPA calculator?
A GPA calculator computes your GPA from a list of courses, grades and credit hours. This converter instead takes a GPA (or percentage, or letter) you already know and translates it into other common scales.
Researched & verified by the Calcuris Data & Research Team. How we build and check our tools →