Grade percentage calculator
Your score, the total, and the percentage. The letter grade uses the common US scale.
Grade percentage
out of
Working: 42 ÷ 50 × 100 = 84%
- Points missed
- 8
Fraction, decimal and percent
Type in any box and the other two follow. Fractions can be mixed numbers, like 1 1/2.
Working: 3/8 = 0.375 × 100 = 37.5%
Working out a test score as a percentage
Divide the points you got by the points available, then multiply by 100. 42 out of 50 is 42 ÷ 50 × 100 = 84%.
Letter grades
The letter shown uses the common US cut-offs: 90% and over is an A, 80% a B, 70% a C, 60% a D, and anything lower an F. Many schools add plus and minus grades or use other boundaries, so your syllabus wins.
Weighted grades
When parts of a course count for different shares, multiply each percentage by its weight and add them. An exam at 90% worth 60% of the grade and coursework at 80% worth 40% gives 0.6 × 90 + 0.4 × 80 = 86%.
Fractions and decimals
3/8 is 0.375, which is 37.5%. To go from a percentage to a decimal, divide by 100. The converter takes any of the three.