Use this weighted average calculator for worksheet math, quick review, and self-checking when you want a direct answer without rewriting the formula by hand.
Enter job values, review the estimate, then use the decision hints before ordering or quoting.
weighted average = sum(value x weight) / sum(weights)Multiply each value by its weight, add the products, then divide by the total weight.
This is useful when some inputs count more than others.
When you need a fast mean from three values and want examples for payroll, school, construction, and engineering reporting.
This page is tuned for clean geometry checks during drafting or homework around weighted mean.
Next: arithmetic mean of four values.
Keep more decimal places when the result will be reused in another formula, drawing, or comparison rather than read once and rounded.
Yes. The formula is stable and this tool only covers straightforward calculation.
Informational calculator only. Verify important outputs independently before legal, tax, medical, engineering, safety-critical, contractual, employment, or compliance use.