How it works
Weighted average = total cost across lots ÷ total quantity.
Input definitions
- Quantity A
- Enter the value in the labeled unit.
- Unit price A
- Enter the value in the labeled unit.
- Quantity B
- Enter the value in the labeled unit.
- Unit price B
- Enter the value in the labeled unit.
- Quantity C
- Enter the value in the labeled unit.
- Unit price C
- Enter the value in the labeled unit.
A worked example
- Quantity A
- 10
- Unit price A
- 8
- Quantity B
- 15
- Unit price B
- 6
- Quantity C
- 5
- Unit price C
- 10
Assumptions & limits
Uses only the values entered. Rates are illustrative inputs, not live quotes, legal rules or personalised advice. Check provider terms, local requirements and measurements before acting.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-19. Content checked against the stated method and examples. Our verification approach.
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Common questions
Why not average the three prices directly?
Each price applies to a different quantity, so larger lots must carry more weight.
How does Weighted average purchase price calculate the result?
Weighted average = total cost across lots ÷ total quantity.
What should I verify before using Weighted average purchase price?
Uses only the values entered. Rates are illustrative inputs, not live quotes, legal rules or personalised advice. Check provider terms, local requirements and measurements before acting.