Web project estimate calculator
Estimate a project total before VAT from role-based hours, external costs, and a reserve.
Try a worked example
Try a worked example
Estimate a project total before VAT from role-based hours, external costs, and a reserve.
Check the units and options, then use the tool’s calculation button. The example is fictitious; replace its values for your own calculation.
Illustration only. Supply the applicable rates and assumptions yourself; this is not financial, tax or legal advice.
Example input
- Design hours
- 16
- Development hours
- 40
- Content hours
- 8
- Project management hours
- 10
- Blended hourly rate for all roles (before VAT)
- 75
- External costs (before VAT)
- 300
- Contingency reserve (%)
- 10
- Currency
- EUR €
Expected output
Total estimated hours: 74 Labour estimate: €5,550.00 External costs before VAT: €300.00 Contingency reserve: €585.00 Estimated project total before VAT: €6,435.00
Applies one blended hourly rate to all role hours, adds external costs before VAT, then applies the reserve to that subtotal.
Waiting for the tool. The explanation remains available without JavaScript.
Method and limits
The result depends on the values entered and the method shown. Check the assumptions, rates, or rules that apply to your situation before using it. Illustrative result only. Verify the rules and assumptions that apply to your work.
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Quick answer
Applies one blended hourly rate to all role hours, adds external costs before VAT, then applies the reserve to that subtotal.
The page code is downloaded when you open it; values are handled in your browser.
Limits of the result
The result depends on the values entered and the method shown. Check the assumptions, rates, or rules that apply to your situation before using it. Illustrative result only. Verify the rules and assumptions that apply to your work.
Frequently asked questions
What does the calculation include?
Total hours = design + development + content + project management. Labour = total hours × the same blended hourly rate. The reserve is applied to labour plus external costs before VAT. With the prefilled example, hours total 74, labour is 5,550, costs are 300, reserve is 585, and the project estimate is 6,435 before VAT. VAT is not calculated. The estimate only includes the hours and costs entered; it does not identify omitted work or automatically price risks or contract changes.
Which values should I enter?
Estimate a project total before VAT from role-based hours, external costs, and a reserve. Use consistent amounts, units, and time periods.
Is the result definitive?
No. Check the assumptions and rules that apply to your situation; this is an illustrative calculation, not professional advice.
Sources and references
These references describe the cited context and rules; some apply only in the jurisdiction named in their title. They do not validate this illustrative calculation.