Weighted Average Calculator
Find an average from matching lists of values and nonnegative weights.
Runs entirely in your browser — your selected files are not uploaded by this tool. Device-provided speech voices may use online services.
About this free weighted average calculator tool
Find an average from matching lists of values and nonnegative weights. Calculators answer a defined arithmetic question using the values you supply. Keep units and currencies consistent, choose the correct starting amount and inspect the assumptions before using a result. Estimates do not replace a lender quotation, an official tax rate, a medical assessment or a jurisdiction-specific deadline rule.
A practical example
A concrete example uses values: 80, 100; corresponding weights: 3, 1. The result is Weighted average: 85.
Before you rely on the result
Results use floating-point arithmetic and are rounded to six decimal places. Confirm units and required precision before using the result.