Weighted Average Calculator
Calculate weighted average with reusable inputs and a clear result. This free calculator runs locally, supports shareable URL values and does not send entered amounts to analytics.
🔒 100% private — files never leave your browser
Result
Your values stay in this URL when you share it; they are not sent to analytics.
Formula
weighted average = Σ(value × weight) ÷ Σ weights
Worked example
80 weighted 40% and 90 weighted 60% = 86.
How to use the Weighted Average Calculator
- 1 Enter the values for the calculation.
- 2 Review the formula and worked example below the form.
- 3 Copy the result or share the URL with its values when useful.
Frequently asked questions
What is the weighted average formula?
weighted average = Σ(value × weight) ÷ Σ weights.
Are my entered amounts uploaded?
No. The calculation runs in your browser. URL sharing stores values only in the address you choose to share.
Is this financial, tax or medical advice?
No. This is a general arithmetic tool. Verify business decisions and local requirements with qualified sources.
More free tools
Ratio Calculator Use this ratio calculator with a clear formula, worked example and instant results. Values stay in your browser and are not uploaded. GPA Calculator Calculate your semester or cumulative GPA on the 4.0 scale. Letter or percentage grades, weighted by credits — instant and private. Age Calculator Calculate your exact age in years, months, days — even hours, minutes and seconds. Next-birthday countdown included. Free, instant, private. Percentage Calculator Three percentage calculators in one: X% of a number, one number as a percent of another, and percentage increase or decrease. Instant, client-side. Unit Converter Convert between metric and imperial units: length, weight, temperature, speed, area, volume, data size and time. Instant and precise — in your browser. Reading Time Calculator Convert word counts into reading and speaking time. Adjustable speed, sentences and paragraphs included — instant and private.