# Rework Cost Calculator

> Cost the extra labour, material and overhead spent making units good.

Page: https://freecalculator.tech/tools/rework-cost-calculator
Last reviewed: 2026-09-16

## Formula

Rework cost = Units reworked × ((Rework hours per unit × Labour rate) + Material per unit + Overhead per unit) + Fixed rework cost

- Rework cost = Units reworked × ((Rework hours per unit × Labour rate) + Material per unit + Overhead per unit) + Fixed rework cost.
- Inputs used: Currency, Units reworked, Rework labour hours per unit, Labour cost per hour, Replacement material per unit (optional), Overhead applied per reworked unit (optional), Fixed rework cost (optional).
- Edge handling: Units reworked is required.; Units reworked cannot be negative.; Units reworked must be no more than 1000000000000.; Rework labour hours per unit is required.; Rework labour hours per unit cannot be negative..

## Inputs

- Currency
- Units reworked
- Rework labour hours per unit
- Labour cost per hour
- Replacement material per unit (optional)
- Overhead applied per reworked unit (optional)
- Fixed rework cost (optional)

## Worked example: 60 units put back through the line

Rework hours at your own labour cost, with any replacement material and overhead added.
1. Start with Currency: USD, Units reworked: 60, Rework labour hours per unit: 0.4, Labour cost per hour: 28.50, Replacement material per unit (optional): 0, Overhead applied per reworked unit (optional): 0.
2. Apply the method: Rework cost = Units reworked × ((Rework hours per unit × Labour rate) + Material per unit + Overhead per unit) + Fixed rework cost.
3. Rework hours at your own labour cost, with any replacement material and overhead added.

## Common questions

### Where does this formula come from?

ASQ cost of quality — scrap, rework and yield loss are internal failure costs: the cost already invested in output that cannot be sold as it is, less anything recovered. See the source link on this page.

### What kind of calculation is this?

The extra labour, material and overhead spent making defective units good, plus anything the rework run costs once. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.

### What are its limits?

Arithmetic over the figures entered — it cannot tell whether the costs, standards or allowances behind them are right. A target cost, an industry benchmark and the organisation's own standard are different things; only the figures entered are used. Direct rework cost only; delay, expediting and lost goodwill are not included unless entered as a fixed cost.

### How do I use the Rework Cost Calculator?

Enter the required values for Currency, Units reworked, Rework labour hours per unit, Labour cost per hour, Replacement material per unit (optional), and the other fields shown. The calculator applies the formula on this page and shows the main result with any supporting breakdown so you can check the arithmetic.

### What formula does the Rework Cost Calculator use?

Rework cost = Units reworked × ((Rework hours per unit × Labour rate) + Material per unit + Overhead per unit) + Fixed rework cost The visible formula section above lists the calculation path and the edge cases the page handles, so the result can be checked without relying on the form alone. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.

### Can the Rework Cost Calculator be used for exact decisions?

Use it as a calculation aid, not as a substitute for checking the underlying rule, contract, policy, or professional advice that applies to your situation. When a result depends on local rules, personal details, prices, or dates, enter those values yourself and confirm them before acting.

## Limitations and assumptions

- Inputs outside the supported range are rejected rather than forced into a result.
- The result depends on the values you enter for this rework cost calculator; it does not supply missing rates, rules, prices, dates, or assumptions for you.

## Sources

- American Society for Quality — https://asq.org/quality-resources/cost-of-quality

## Cite this page

- APA: Free Calculator. (2026, September 16). Rework Cost Calculator. https://freecalculator.tech/tools/rework-cost-calculator
- MLA: "Rework Cost Calculator." Free Calculator, 16 Sept. 2026, https://freecalculator.tech/tools/rework-cost-calculator.
- Link: Rework Cost Calculator — Free Calculator, https://freecalculator.tech/tools/rework-cost-calculator