Grade Calculator

A grade calculator converts raw scores to percentage grades and corresponding letter grades.

About this calculator

A grade calculator converts raw scores to percentage grades and corresponding letter grades. It helps students understand exactly how they scored on any assignment, test, or exam and what letter grade that translates to.

Percentage grades are widely used in education and directly correspond to letter grades in standard grading scales.

Common uses

  • Calculate percentage grade from points earned on a test
  • Determine what letter grade a raw score corresponds to
  • Find the minimum score needed to achieve a target grade
  • Calculate cumulative grade from weighted assignments

Frequently asked questions

What are the standard percentage-to-letter grade conversions?

Common scale: A (93–100%), A− (90–92%), B+ (87–89%), B (83–86%), B− (80–82%), C+ (77–79%), C (73–76%), C− (70–72%), D+ (67–69%), D (60–66%), F (below 60%). Scales vary by institution, always check the specific course grading policy.