Home Renovation Cost Estimator
Frame a renovation budget from project scope and the unit rates you provide. The calculator never invents market prices: defaults are clearly-labeled editable placeholders — replace them with quotes from your local contractors and suppliers for real numbers.
Home Renovation Cost Estimator
Project Cost
ft²
Editable placeholder — replace with local quotes
%
Budget range
$6,900 – $21,275
low – high band incl. contingency
Average budget
$12,650
Low / High
$6,900 · $21,275
Contingency included
15%
+$1,650 inside the average band
Budget bands
Calculation breakdown
- 1Scope:
50 ft² × rates × 1 quality - 2Low:
50 × $100 × 1 + $1,000 × 1.15 = $6,900 - 3Average:
50 × $200 × 1 + extras → $12,650 - 4High:
50 × $350 × 1 + extras → $21,275
- Enter YOUR local quotes as rates — the defaults are placeholders, not fabricated market data.
- Bathrooms/kitchens: mechanical trades and waterproofing drive cost more than finishes.
Budget band = Area × Rate (low / avg / high) × Quality multiplier + Extras.
Contingency 15% is added to each band — renovations always uncover surprises.