Weighting Calculator

Scores, grades or measurements, comma or newline separated.
One weight per value. Percentages, credit hours or points all work — only the ratios matter. Leave blank to weight every value equally.
If each value is scored out of a fixed maximum, the result is also expressed as a percentage of it.
Weighted average
85
Weighted Average Calculator
Total weight
2
Σ (value × weight)
170
Unweighted (simple) average
85
Number of items
2
Largest contributor
value 90 at weight 1 (50% of the weight)
Worked out from formula WEIGHTED-MEAN and 1 other source.
No weights were given, so every value was weighted equally — the result is the simple average.

How this is worked out

3 steps
  1. Total weight = 2
  2. Σ(value × weight) = 80×1 + 90×1 = 170
  3. Weighted average = 170 / 2 = 85
Weight sharestable
0.5, 0.5
Item breakdowntable
valueweightweightSharecontribution
8010.540
9010.545

Results are general information, not financial, tax, legal, medical or engineering advice.