What is GPA Calculator?
A GPA (grade point average) is a single number summarising all your grades, weighted by how much each course counts. On the standard US 4.0 scale an A is worth 4.0 points, a B 3.0, a C 2.0, a D 1.0 and an F 0.0, with ±0.3 for plus and minus grades. To calculate it, multiply each course's grade points by its credit hours, add those together, and divide by the total credits. This GPA calculator does that arithmetic as you type, and shows both the unweighted result and the weighted result that schools use when AP, IB or Honors classes earn extra points. Because it runs entirely in your browser, your transcript details never leave your device.
Common Uses for GPA Calculator
- Work out your GPA at the end of a semester before official grades post
- See how one more A or B would move your cumulative average
- Check the difference AP and Honors classes make to a weighted GPA
- Plan a target GPA by testing different grade combinations
- Verify a GPA you calculated by hand or got from a school portal
The 4.0 scale in one table
A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D+ = 1.3, D = 1.0, D- = 0.7, F = 0.0. Each letter moves in 0.3 steps, which is why one B+ instead of an A- costs 0.4 points — a meaningful amount in a short semester.
GPA by credits, not by courses
A four-credit course moves your average more than a one-credit lab. That weighting is the whole point of a GPA: it reflects effort and time, not just the number of grades. Adding a 1-credit A to a transcript already at 3.5 barely moves it; adding a 4-credit A moves it noticeably. The calculator shows total credits so you can see exactly what share of your record each course represents.
When a GPA matters
Colleges recalculate GPA on their own scales for admission, scholarships often have hard cut-offs (3.0 and 3.5 are the common ones), graduate programmes look at the last 60 credits, and some employers and internships screen at 3.0. Knowing your number early lets you target the terms that still have room to move.