What is the standard US GPA scale?

The most common scale assigns A=4.0, B=3.0, C=2.0, D=1.0, and F=0.0. With plus/minus grades, an A+ is 4.3, A is 4.0, A- is 3.7, and so on down the scale.

Do all schools use plus/minus grades?

No. Some institutions use a simpler scale with only A, B, C, D, and F without plus or minus distinctions. This tool supports both scales via the toggle.

What percentage is an A?

Typically 90–100% earns an A. An A+ is usually 97–100%, A is 93–96%, and A- is 90–92%, though exact cutoffs vary by school and instructor.

Is a 4.3 GPA possible?

Yes, on the plus/minus scale an A+ is commonly assigned 4.3, although some schools cap the GPA at 4.0 and treat A+ the same as A.

What is a passing grade?

In most US colleges a D (1.0 GPA, ~60–62%) is the lowest passing grade, though many programs require a C or higher in major courses.

How accurate are the percentage ranges shown?

The ranges shown reflect the most widely used US university standard. Your institution may use slightly different cutoffs, so always check your school's official grading policy.

Letter Grade Converter

Name: Letter Grade Converter
Availability: InStock
Author: Nham Vu

Convert any letter grade, percentage score, or GPA value instantly using common US grading scales.

Convert a Grade

Scale:

Letter Grade

Full Grade Scale Reference

Standard US university grading scale

Letter	Percentage	GPA	Description

Summary