A GPA calculator turns letter grades and credit hours into a single weighted average on the 4.0 (or 5.0 weighted) scale. The math is simple — sum (grade points × credits) over all classes, divide by total credits — but accuracy matters because GPAs determine class rank, scholarship eligibility, honour-roll thresholds, and graduate-school admissions.

What this calculator handles

• Multiple scales. Plain 4.0 (A=4, B=3...), 4.0 with +/- modifiers (A+=4.0, A−=3.7...), and 5.0 weighted (AP/honours classes worth an extra point).
• Per-term and cumulative. Enter classes term-by-term to see GPA evolve. Useful for catching slipping grades early.
• Target GPA mode. Enter your current cumulative GPA and a target — the calculator shows what you need next term to hit it.
• International scales. Switchable between US 4.0, India 10-point, UK honours, German 1.0–5.0 (where lower is better), and a few others.

Common gotchas

• Plus/minus grades vary by school. Some institutions don't distinguish (A+ = A = 4.0); others use the +/- scale. Check your transcript before assuming.
• Pass/fail classes typically don't factor into GPA — they earn credit but don't shift the average.
• Retake policies differ. Some schools replace the original grade in GPA calculations; others average both. Check the registrar.
• Weighted vs unweighted matters for college applications. Most admissions offices recalculate to a common scale (unweighted 4.0) for fairness across high schools — don't assume your weighted GPA is what they're comparing.