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The International Grade System Converter translates academic grades between the major global standards: US 4.0 GPA scale (letter grades A–F), UK degree classification (First / 2:1 / 2:2 / Third), ECTS European grading (A–F percentile-based), Indian percentage and division (First/Second/Third), German numeric scale (1.0–5.0, where 1.0 is best — inverted from US), Chinese percentage (60% pass), and Australian / Canadian variants. Essential for international students, university admissions, credential evaluators, employers reviewing foreign degrees, and study-abroad coordinators. Each system embeds different assumptions. US GPA is cumulative weighted average where A=4.0, B=3.0, etc., and 'graduate-level' usually requires 3.0+. UK uses honors classification on final-year + dissertation: First (70%+), Upper Second (2:1, 60–69%), Lower Second (2:2, 50–59%), Third (40–49%), Pass (35–39%). ECTS introduced relative ranking (A = top 10%, B = next 25%, C = next 30%, D = next 25%, E = bottom 10%) but most institutions hybridize ECTS with absolute scores. India uses percentage (60%+ First Division, 50–59% Second, 40–49% Third), and many states layer on choice-based credit systems (CBCS) with letter equivalents. The German system trips up nearly everyone: 1.0 is best, 5.0 is failing — the inverse of US/UK direction. A German 1.0–1.5 ≈ US A / 4.0 / UK First. A 2.0–2.5 ≈ B+ / 3.5 / 2:1. A 3.0 is solidly average (US C / 2.0). A 4.0 is the minimum passing grade. Confusing a German 2.0 (good!) with US 2.0 (mediocre C) is a classic credential-evaluator error. WHY conversion matters: international admissions, study-abroad credit transfer, employer credential evaluation, professional licensure (medicine, engineering, accounting cross-border), and visa applications. WES (World Education Services), ECE (Educational Credential Evaluators), and Naric/ENIC services formally evaluate transcripts using these mappings. The calculator gives directional equivalents — final acceptance always depends on the receiving institution's policy.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

1. 1Step 1 — Select your source grading system from the dropdown
2. 2Step 2 — Enter your grade in that system's format (e.g., 3.7 GPA, First Class, 75%, 1.5 German)
3. 3Step 3 — Calculator maps the grade to a normalized internal score (0–100 percentile)
4. 4Step 4 — Cross-references the score against each target system's equivalence band
5. 5Step 5 — Outputs grade in all major systems simultaneously
6. 6Step 6 — Highlights notable conversion details (e.g., German inversion, ECTS relative ranking)
7. 7Step 7 — Use output for applications, transcripts, or credential discussions

• !Treating German scale as same direction as US (it's inverted: 1.0 is best, 5.0 is fail)
• !Confusing weighted vs unweighted US GPA when applying internationally
• !Assuming UK 2:1 is mid-tier — it actually represents top 30–40% (very competitive)
• !Forgetting Indian division boundaries (60% = First Division — different from 60% in other systems)
• !Using percentage from a 50% baseline (UK/India) interchangeably with percentage from 0% (US)