GPA Calculator

Add your courses, pick a grade for each, and this works out your GPA as you type. It handles two systems: the US 4.0 scale (letter grades weighted by credit hours) and UK Honours degree classification (numeric marks weighted by module credits, mapped to a 1st, 2:1, 2:2, or 3rd).

GPA is a credit-weighted average, not a plain average of your grades. A B in a 4-credit class pulls your GPA more than an A in a 1-credit class. That's why you enter credit hours per course — get those right and the result matches what your registrar will calculate.

For US high school students, there's a weighted toggle: Honors classes add +0.5 and AP/IB classes add +1.0 to each grade point, which is why a weighted GPA can exceed 4.0. Your rows save to this browser so you can come back and update them as grades come in.

US mode uses the standard 4.0 grade-point scale: A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, and so on down to F = 0.0. GPA is the sum of (grade points x credit hours) divided by total credit hours. When the weighted toggle is on, Honors courses get +0.5 and AP/IB courses get +1.0 per grade point (an F stays at 0), so the scale tops out around 5.0. A+ is treated as 4.0 to match most institutions, though a few schools use 4.3.

UK mode takes numeric marks from 0 to 100 and computes a credit-weighted average across your modules, then maps it to the standard Honours boundaries: 70+ is a First, 60-69 a 2:1, 50-59 a 2:2, 40-49 a Third, and below 40 a fail. A bar shows where your average sits relative to those boundaries.

Blank or invalid rows are skipped in the calculation, so you can leave placeholder rows in place. Everything runs locally in your browser, and Save stores your courses in this browser's localStorage — nothing is uploaded.

Most GPA calculators online are US-only and don't ask for credit hours, which gives you a plain grade average rather than a real GPA. This one weights by credits (matching how registrars actually compute it) and covers both the US 4.0 scale and UK Honours classification in one place.

Your own institution's official transcript is always the source of truth — some schools round differently, treat A+ as 4.3, cap weighted bonuses, or exclude pass/fail courses. Use this to plan and predict ("what do I need this semester to hit a 3.5?"), then confirm against your registrar for anything that counts.