Bathroom Remodel Cost Calculator
A bathroom remodel is one of the most variable home projects to budget, because the same room can cost wildly different amounts depending on finishes, fixtures, and local labor rates. Rather than quote prices we cannot verify, this calculator lets you enter your own figures: the floor area, your cost per square foot for surfaces, your fixtures and fittings total, your labor quote, and a contingency for the unexpected. The tool then totals everything and shows the subtotal, contingency amount, grand total, and cost per square foot so you can compare bids and plan with confidence.
Bathroom remodel cost formula
Surfaces cost = floor area * cost per square foot
Subtotal = surfaces cost + fixtures + labor
Contingency amount = subtotal * (contingency percent / 100)
Grand total = subtotal + contingency amount
Total cost per square foot = grand total / floor area
Every price is an input you control. The subtotal adds your surfaces, fixtures, and labor; the contingency applies your chosen buffer percentage; and the per-square-foot figure normalises the total so you can compare projects of different sizes.
Budgeting context
- Labor is frequently the largest single component of a bathroom remodel; gather at least three contractor bids before setting your labor figure.
- A contingency of 10 to 20 percent is a common planning practice for renovations where hidden conditions may exist behind walls.
- Plumbing and electrical work usually requires a local building permit; confirm fees with your municipal building department.
- Moving plumbing fixtures from their existing locations adds significant cost compared with keeping the same layout.
- Material prices change over time; re-quote close to your project start date rather than relying on older estimates.
Bathroom remodel cost: frequently asked questions
How does this bathroom remodel cost calculator work?
It multiplies your bathroom floor area by the cost per square foot you enter for materials and finishes, adds your fixture and labor totals, then applies a contingency percentage. Because remodel prices vary enormously by region, brand, and contractor, every price input is yours to set: the calculator does the arithmetic, it never invents a price.
What contingency should I add to a remodel budget?
A contingency covers surprises uncovered once walls and floors are opened, such as hidden water damage or outdated plumbing. Many homeowners reserve 10 to 20 percent of the project cost. The default here is 15 percent, but you should set it based on the age and condition of your home and the certainty of your scope.
Why are no default prices filled in for materials and labor?
Material and labor prices depend heavily on your location, the finishes you choose, and your contractor's rates, so any single figure would be misleading. We follow a strict rule: never present an unverifiable price as fact. You enter the quotes and prices you have gathered, and the calculator totals them accurately.
Should labor be a separate line from materials?
Yes. Labor is often the largest part of a bathroom remodel and is quoted separately by contractors. Keeping it on its own line lets you compare bids, see the materials-to-labor split, and adjust scope. Enter the total labor quote, or build it up from hourly rates and estimated hours outside the tool.
Does this include permit fees?
Permit fees are not a separate field, so include them in your fixtures and fittings total or your labor line if your contractor pulls the permit. Many jurisdictions require a permit for plumbing and electrical work in a bathroom; check your local building department for the fee schedule and requirements.
Official sources
- U.S. Bureau of Labor Statistics: Producer Price Indexes (construction materials).
- U.S. Census Bureau: Construction Spending.
Reviewed by the CalculatorHub team, edited by James Graham, 16 June 2026. See our methodology.