Free Weighted Average & Weighted Mean Calculator Online
Calculate the weighted average (weighted mean) for grades, exam scores, investment portfolio returns, and financial indices. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
How It Works
Add Rows
Input value (x_i) and associated weight (w_i).
Automatic Weight Normalization
Tool balances weights even if they do not sum to 100%.
Inspect Weighted Mean
Formula: Σ(x_i × w_i) / Σw_i.
Frequently Asked Questions
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