About

The Weighted Average Calculator is a free browser tool for one calculation: the weighted average of a dataset of value-weight pairs. Every result appears next to the standard arithmetic mean, so the effect of weighting stays visible instead of hidden inside a single number.

What the tool does

The calculator multiplies each individual value by its weight, adds the products into a weighted sum, divides that weighted sum by the total of weights, and prints the weighted average. Four supporting figures accompany the result: the sum of weighted values, the sum of weights, the count of selected rows, and the simple average of the same values.

• Presets re-label the columns for General, Course Grades, GPA, and Portfolio work.
• Decimal places round the result between 0 and 6 digits.
• Step-by-step breakdown copies every multiplication as plain text.
• Weight distribution shows the share each entry holds in the total of weights.

How the numbers are checked

Every worked example published on this site is computed with the same formula the calculator uses, then verified against an independent calculation before publishing. Corrections are applied to the page rather than footnoted.

Privacy in one sentence

Every weighted average calculation runs inside the browser, and no dataset is uploaded, stored on a server, or shared with a third party.

Who it serves

Students calculating course grades and grade point average (GPA), teachers building grading schemes, analysts weighting portfolio returns by allocation, and anyone combining values of unequal importance into one defensible number.