Weighted average calculator

Client

Compute a weighted mean—grades with credit hours, survey scores with importance, or blended metrics.

About Weighted average calculator

Mean of values with weights—one value per line as “value weight”—computed locally. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

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Nearby workflows on Toolcore

  • Mean, median & mode — Paste numbers (comma or whitespace separated) to get mean, median, and modes. when units or numeric output should be checked on a related calculator.
  • Percentage calculator — Percent of a value, ratio to percent, and percent change—no server round-trip. when units or numeric output should be checked on a related calculator.
  • Math expression evaluator — Evaluate basic + − × ÷ arithmetic with parentheses in your browser—no variables. when units or numeric output should be checked on a related calculator.
  • Percent change — Calculate percentage increase or decrease from an old value to a new one—local math in your browser. when units or numeric output should be checked on a related calculator.

Common use cases

  • Calculate course GPA-style averages with different credit weights.
  • Blend KPI scores when each metric has a different weight.

Common mistakes to avoid

  • Weights not summing to 1

    Weights may be any positive numbers—they are normalized by their sum.

FAQ

Must weights sum to 1?

No—only the ratio of weights matters.

Negative weights?

Allowed mathematically but unusual; zero total weight is rejected.

More tools

Related utilities you can open in another tab—mostly client-side.