Convert a percentage average to a 4.0-scale GPA, or a 4.0 GPA back to an approximate percentage, with the matching letter band. The mapping is a common approximate reference; schools use different scales, so confirm the official conversion with your institution. All processing runs locally in your browser. Your data is not uploaded to any server. 100% Local
How to Use the GPA Scale Converter
Choose the conversion direction, enter your value, and press Convert.
Reference bands
90+ is about 4.0, 85+ about 3.7, 80+ about 3.3, and so on.
Converting back gives the lower bound of the matching band.
Values are clamped to the 0–100 and 0–4.0 ranges.
Features
Percentage to 4.0 GPA and back
Matching letter band
Input guarded to valid ranges
Copy or download the result
All processing runs locally in your browser. Your data is not uploaded to any server.
An approximate reference mapping only; schools use different scales.