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Home Renovation Cost Calculator
Build a renovation budget from floor area, labor and material rates, extra costs, and contingency.
- Budget including contingency
- 15,525
- Base cost
- 13,500
- Contingency
- 2,025
How the calculation works
Base cost = area × (labor per m² + materials per m²) + extras. Budget = base cost × (1 + contingency/100).
Inputs
- Floor area, m²
- Labor per m²
- Materials per m²
- Extra costs
- Contingency, %
Calculation details
Enter rates from your own quotes. Default values are calculation examples, not market prices or contractor offers.
Include delivery, waste removal, demolition, and equipment in extras if they are not in the unit rates. Use one currency for all amounts.
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Updated: 2026-10-02