Weighted Average Calculator
Calculate a weighted mean from value,weight pairs such as scores and course weights.
Free · No signup · No watermark · On-device processing
Use the tool
How to use Weighted Average Calculator
- Enter one value,weight pair on each line.
- Use non-negative weights with a positive total.
- Run to calculate sum(value × weight) divided by sum(weight).
How this tool handles your input
Multiply each value by its weight, add the products and divide by total weight. Weights need not sum to 100.
Weights must be non-negative and total weight must be positive. Arithmetic uses floating-point numbers; grading policies can differ.
Example: 80,1 and 100,3 → weighted average 95
Privacy and browser support
Your input is handled in this browser tab. Selected files and entered text are not sent to Varento Tools by this tool. Some specialized libraries load only when needed. A browser with JavaScript and sufficient device memory is required. Read our local-processing explanation.
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Frequently asked questions
Is this tool free without daily usage limits?
Yes. Varento Tools has no signup, accounts, usage-count caps, paywalls or watermarks. Device memory, format support and browser restrictions can still limit technically demanding files.
What input and output rules apply?
Multiply each value by its weight, add the products and divide by total weight. Weights need not sum to 100.
What are the limitations?
Weights must be non-negative and total weight must be positive. Arithmetic uses floating-point numbers; grading policies can differ.
Is my input uploaded?
No. This tool processes your input in the current browser tab, without a processing API or account.