Home Renovation Budget Calculator
Fill in only the categories you need. Enter a quantity and your own rate; leave a row empty to skip it.
Your result will appear here after you press Calculate.
How this calculator works
Item cost = quantity × rate (for lump-sum items use quantity 1 and enter the amount as the rate)
Subtotal = sum of item costs; Contingency = subtotal × contingency % ÷ 100
Total budget = subtotal + contingency
Assumptions and limits
- No rates are pre-filled because renovation prices differ by city, brand and contractor. Enter quotes or rates you trust.
- The contingency is an allowance you choose; 10% is only a starting suggestion.
This tool gives an approximate estimate from the values you enter. It is not a substitute for professional engineering design, site inspection, official quotations or applicable building regulations. See the calculator disclaimer.