Grade & Score Reference

Know your grade before the teacher does.

Enter your score and total points to get an instant percentage and letter grade, see how the common U.S. grading scales compare, and find your way to the right school or district portal for your actual records.

Grade Calculator% → Letter

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Uses a standard 90 / 80 / 70 / 60 scale. Your teacher's actual cutoffs may differ slightly — check your syllabus or the scale reference below.

Reference

Common grading scales

Most U.S. schools use some version of the 10-point scale below, but plenty of teachers and districts shift the cutoffs — some use 93/90 for A/A-, others round differently, and a few schools grade on a curve entirely. When in doubt, your syllabus or the grading policy published by your own school district is the source of truth, not a generic chart like this one.

Percentage	Letter	4.0 scale (typical)
93–100	A	4.0
90–92	A-	3.7
87–89	B+	3.3
83–86	B	3.0
80–82	B-	2.7
77–79	C+	2.3
73–76	C	2.0
70–72	C-	1.7
60–69	D	1.0
Below 60	F	0.0

New York City public schools, for example, describe grading as an ongoing measure of what a student knows and can do, not a one-shot judgment — report card grades there are meant to reflect current mastery of standards. Details vary district to district, which is exactly why it's worth checking your own school's actual policy (linked below) rather than a national average.

Go straight to the source

Official grading resources & portals

This site isn't affiliated with any school, district, or software vendor below — these are just solid, official places to check actual grades, cutoffs, and policy instead of a third-party estimate.

District policy

NYC Public Schools — Grading

The official NYC DOE page explaining how report card grades work and what they're meant to measure.

Visit ↗ SIS docs

PowerSchool SIS — Grade Scales

PowerSchool's own documentation on how grade scales are configured for the student information system many districts use.

Visit ↗ Parent help

openSIS — Tracking Grades in the Parent Portal

A walkthrough from openSIS on how parents can view and track their child's grades inside its parent portal.

Visit ↗

Looking for your own child's or your own grades? You'll need to log in through your school or district's actual portal — usually linked from your school's website or a welcome letter/email from the school. We don't host or link login pages here, since the right one depends entirely on which school or district you're in. You may also visit high school GPA calculator to calculate GAP grades.