GPA Scale Reference Tool

Explore every GPA scale used in the US and internationally, convert grades instantly, and build your school's custom scale.

Quick Grade Converter

Enter a letter grade (A, B+), a percentage (87), or a GPA number (3.3) to see all equivalents instantly.

Results update as you type

Letter Grade
4.0 GPA
4.3 GPA
5.0 GPA
Percentage Range

US GPA Scales

Letter GradeGPA (4.0)Percentage RangeDescription
A+4.097–100%Outstanding
A4.093–96%Excellent
A−3.790–92%Excellent
B+3.387–89%Above Average
B3.083–86%Good
B−2.780–82%Good
C+2.377–79%Average
C2.073–76%Average
C−1.770–72%Average
D+1.367–69%Below Average
D1.063–66%Poor
D−0.760–62%Poor
F0.00–59%Failing

GPA Scale Comparison Chart

Visual comparison of the 4.0, 4.3, and 5.0 scales for each letter grade.

4.0 Scale 4.3 Scale 5.0 Scale

International GPA Scales

Common grade conversions for international students applying to US institutions.

Custom GPA Scale Builder

Enter your school's custom grading ranges to see how grades map to GPA points.

Define each grade's minimum percentage threshold. The tool will build your custom scale instantly.