Weighted Average Calculator
This calculator helps you compute the weighted average for a set of numbers, perfect for students, statisticians, and data analysts who need to determine averages with varying significance.
Calculator
Results
Data Source and Methodology
All calculations are based on standard mathematical formulas for weighted averages. Please consult authoritative sources for specific applications.
The Formula Explained
The weighted average is calculated using the formula:
Weighted Average = (Σ(value × weight)) / Σ(weight)
Glossary of Terms
- Value: The number you want to average.
- Weight: The importance or frequency of the value.
FAQ
What is a weighted average?
A weighted average is an average where each number in the dataset is multiplied by a weight, reflecting its importance or frequency.
How do I calculate a weighted average?
Multiply each value by its corresponding weight, sum all the results, and then divide by the sum of the weights.
When should I use a weighted average?
Use a weighted average when data points contribute differently to the outcome, such as calculating grades or economic indices.
Formula (LaTeX) + variables + units
','
Weighted Average = (Σ(value × weight)) / Σ(weight)
- No variables provided in audit spec.
- NIST — Weights and measures — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/weights-and-measures - FTC — Consumer advice — consumer.ftc.gov · Accessed 2026-01-19
https://consumer.ftc.gov/
Last code update: 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.