Classic tool
Renovation Cost Calculator
Estimate renovation budget by combining area, local cost per square foot or meter, finish level, project scope and contingency reserve.
Use this renovation cost calculator to build a realistic first-pass budget before requesting detailed quotes. Enter the project area, your local base rate per square foot or square meter, finish level, renovation scope and contingency percentage to estimate a more usable number.
Why this estimate goes beyond a basic area formula
Not every renovation carries the same weight. Kitchens and bathrooms usually need more plumbing, waterproofing and specialty labor, while structural changes increase risk, downtime and hidden costs. The calculator applies those multipliers so you can move beyond a flat guess.
How to use the result
Review the adjusted rate, work subtotal, contingency reserve and suggested budget range. Use the estimate to compare contractor proposals, phase the project and test whether a higher-spec finish still fits your budget.
Use clear inputs to get a more useful result.
Renovation budget FAQ
Is cost per square foot enough?
It is a useful starting point, but not the whole story. Wet areas, demolition, structural work, cabinetry and premium finishes can shift the number quickly.
How much contingency should I add?
Many homeowners plan for 10% to 20%. Older buildings, hidden repairs and aggressive timelines usually justify a wider buffer.
When does this stop being a rough estimate?
Once you have measured drawings, finish specs, contractor scope and labor breakdowns, you are moving into a real project budget instead of an early planning range.