Weighted Grade Calculator
Enter each mark and its weight (for example 40 for 40%). The tool finds the weighted mean: total of mark × weight divided by total weight. Use the same scale for every mark (such as 0–100 in the UK or percentage-style marks in the US).
Example: 82,76,91 — use the same scale for each.
Example: 40,35,25 — same order as marks; use 40 for 40%.
Enter each mark and its weight (for example 40 for 40%). The tool finds the weighted mean: total of mark × weight divided by total weight. Use the same scale for every mark (such as 0–100 in the UK or percentage-style marks in the US).
Weighted average = (g₁×w₁ + g₂×w₂ + … + gₙ×wₙ) / (w₁ + w₂ + … + wₙ) Each gᵢ is a mark on your chosen scale; each wᵢ is a non‑negative weight (often summing to 100).
Marks 82, 76, 91 with weights 40, 35, 25. Sum of weights is 100. Weighted sum = 82×40 + 76×35 + 91×25 = 3280 + 2660 + 2275 = 8215. Average = 8215 ÷ 100 = 82.15 on the same scale as the marks.
Multiply each mark by its weight, add those products, then divide by the sum of the weights. If weights are percentages that add to 100, the denominator is 100.
No. The weighted average uses the ratio of weights. If every weight is doubled, the result stays the same.
Yes, if each mark is on a comparable scale and each weight reflects how much that component counts. It is a study aid only; it does not replace your school or university rules.
Convert letters to numbers on your scale first, then enter those numbers here so every mark uses the same system.
Weighted Grade Calculator: How to Combine Marks and Weightings
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