# Project Cost Calculator

> Build a total project cost from labour, materials, travel, overhead and contingency.

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

## Formula

Direct cost = Labour + Materials + Software + Travel + Subcontractors; Cost base = Direct cost × (1 + Overhead rate); Total = Cost base × (1 + Contingency rate)

- Direct cost = Labour + Materials + Software + Travel + Subcontractors; Cost base = Direct cost × (1 + Overhead rate); Total = Cost base × (1 + Contingency rate).
- Inputs used: Currency, Labour cost, Materials (optional), Software and tools (optional), Travel (optional), Subcontractors (optional), Overhead applied to direct cost (optional), Contingency reserve (optional).
- Edge handling: Labour cost is required.; Labour cost cannot be negative.; Labour cost must be no more than 1000000000000.; Materials (optional) is required.; Materials (optional) cannot be negative..

## Inputs

- Currency
- Labour cost
- Materials (optional)
- Software and tools (optional)
- Travel (optional)
- Subcontractors (optional)
- Overhead applied to direct cost (optional)
- Contingency reserve (optional)

## Worked example: Delivery with materials, travel and a contingency reserve

Optional components left at zero are excluded, not guessed.
1. Start with Currency: USD, Labour cost: 45000, Materials (optional): 6000, Software and tools (optional): 2400, Travel (optional): 3000, Subcontractors (optional): 0.
2. Apply the method: Direct cost = Labour + Materials + Software + Travel + Subcontractors; Cost base = Direct cost × (1 + Overhead rate); Total = Cost base × (1 + Contingency rate).
3. Optional components left at zero are excluded, not guessed.

## Common questions

### Where does this formula come from?

PMI, A Guide to the Project Management Body of Knowledge (PMBOK Guide) — Estimate Costs and Determine Budget: activity costs are aggregated and a contingency reserve is added for identified risk. See the source link on this page.

### What kind of calculation is this?

Costs are aggregated, an overhead rate is applied to direct cost, and a contingency reserve is added to the cost base. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.

### What are its limits?

Gives a cost, not a price; profit is added in the quoting calculators. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.

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

Enter the required values for Currency, Labour cost, Materials (optional), Software and tools (optional), Travel (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 Project Cost Calculator use?

Direct cost = Labour + Materials + Software + Travel + Subcontractors; Cost base = Direct cost × (1 + Overhead rate); Total = Cost base × (1 + Contingency rate) 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 Project 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 project cost calculator; it does not supply missing rates, rules, prices, dates, or assumptions for you.

## Sources

- Project Management Institute — https://www.pmi.org/learning/library/project-cost-management-practices-6510

## Cite this page

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