Free tool
Weighted average calculator
Average values that count for different amounts, such as grades, prices or costs.
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How it works
How it works
Weighted average = sum of (value x weight) divided by the sum of weights. Enter one pair per line as value, weight.
FAQ
About this calculator
When do I use a weighted average?
When items matter by different amounts, such as an average cost of inventory bought at different prices, or grades with different credit hours.
Do weights have to add to 100?
No. Any positive weights work, because the calculator divides by the total.
Can I use commas or tabs?
Yes. Separate the value and weight with a comma, tab or semicolon.
Is anything saved?
No. The math runs in your browser and nothing you enter is sent to us.
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