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Bathroom Remodel Cost Calculator
A bathroom remodel costs $3,500–$25,000 for an average 35–50 sq ft bathroom, installed. Scope drives most of that: $3,500–$7,500 for a minor renovation, $5,300–$15,000 for a partial remodel, $8,800–$25,000 for a full one. Enter your floor area and how much is changing to see where your job lands.
Educational calculators — always consult a licensed professional before making financial decisions.
Floor area in square feet. Length × width of the room.
This sets the per-square-foot rate — the spread is roughly 3× end to end.
About $150–$300 per sq ft. Replacing some of the major elements — tub, shower, sink, toilet, vanity — plus tiling.
The single change most likely to break a bathroom budget.
Every fixture stays on its existing supply and drain. This is what a standard quote assumes.
Total Bathroom Remodel Cost
$6,657 – $14,300
Partial remodel — 40 sq ft
The spread between the two ends is real, not padding — it is the difference between stock fixtures fitted to the existing layout and custom materials on a reworked one. Get three quotes and expect them to land at different points inside this band.
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Scope matters more than materials
The instinct is to budget by picking fixtures, but the tier of work sets the number long before the tile does. The published per-square-foot rates run roughly $100–$150 for a minor renovation, $150–$300 for a partial remodel, and $250–$500 for a full one — a 3× spread on the same room before anyone has chosen a faucet.
| Scope | What changes | Typical total |
|---|---|---|
| Minor renovation | Flooring, vanity, paint, fixtures. Nothing moves. | $3,500–$7,500 |
| Partial remodel | At least one major fixture replaced, plus tiling. | $5,300–$15,000 |
| Full remodel | Everything out. Layout and luxury materials possible. | $8,800–$25,000 |
Totals are for a 35–50 sq ft bathroom. A powder room costs less in total and more per square foot; a primary bathroom scales the other way.
Small bathrooms cost more per square foot
Halving the floor area does not halve the bill. A bathroom of any size needs a toilet, a sink, ventilation, waterproofing and a plumber who has to show up regardless — so the fixed costs are spread across fewer square feet. A 15 sq ft powder room runs about $1,500–$2,250 for a minor renovation and $3,750–$7,500 for a full one.
It cuts the other way too. Because the fixture count barely changes between a 35 sq ft hall bath and a 60 sq ft one, the extra area is mostly floor, wall and tile — the cheapest part of the job per square foot. Growth in a bathroom budget usually comes from the fixture list and the layout, not from the room being larger.
Moving plumbing is the decision that costs
Keeping every fixture on its existing supply and drain is what makes a remodel predictable. Drains rely on gravity and have to fall at a set rate, so relocating a toilet or a shower is not a matter of running a new pipe — it means opening the floor, re-cutting the fall, and sometimes moving a vent stack. That is the point at which a finish job becomes a framing job.
Sinks and vanities are more forgiving because they sit higher and drain into the same wall. If you want a different layout, have a plumber look at the existing drain runs before you commit to a floor plan — it is a far cheaper conversation before demolition than after.
What the quote usually leaves out
- Demolition and disposal, $600–$2,300. Frequently a separate line. Ask explicitly whether stripping the old bathroom out and hauling it away is in the price.
- Permits and inspections, $100–$1,000. Usually triggered once plumbing or electrical moves. The inspection is what protects you at resale.
- What is found behind the walls. Rotten subfloor under the tub, failed waterproofing, or supply pipes worth replacing while they are accessible. This is the usual reason a final invoice exceeds the estimate.
- A contingency. Hold back 10–20% on any full remodel of an older bathroom. If it is not needed, it is not spent.
Related calculators
Pricing a single element rather than the whole room? The tile flooring calculator covers floor and wall tile, and the underfloor heating calculator prices a heated floor with its running cost. For a whole-house view, the home renovation cost guide shows where a bathroom sits against the other rooms. Renovating in India instead? Use the India bathroom renovation calculator, which prices in rupees against Indian labour rates.
Methodology & sources
The cost figures on this page are generated from a single, sourced cost-data file (Professional bathroom remodel — materials and labor installed — for an average-sized 35 to 50 sq ft bathroom, 2026 US national average. Excludes permits, demolition and any change that moves plumbing or walls; those are priced separately in the calculator.). Angi puts the same project at an average of $12,146 within a $2,500–$30,000 range, or roughly $70–$250 per sq ft, against HomeGuide's $100–$500 per sq ft — so treat the low end as achievable only on a minor refresh. Angi's own "full remodel" tier of $25,000–$80,000 describes a larger primary bathroom than the 35–50 sq ft basis used here, and HomeGuide notes a large primary bath with high-end fixtures can reach $60,000. Demolition runs $600–$2,000 (HomeGuide) or $1,000–$2,300 (Angi) and permits $100–$1,000 (Angi); none of that is in the headline. Last verified August 2026.
Frequently asked questions
How much does a bathroom remodel cost?+
A bathroom remodel costs $3,500–$25,000 for an average-sized 35 to 50 sq ft bathroom, materials and labor installed. Scope sets most of the spread: a minor renovation runs $3,500–$7,500, a partial remodel $5,300–$15,000, and a full remodel $8,800–$25,000. Per square foot that works out to roughly $100–$150, $150–$300 and $250–$500 respectively. Angi puts the same project at an average of $12,146 within a $2,500–$30,000 range.
How much does it cost to remodel a small bathroom?+
Small bathrooms cost less in total but more per square foot, because the fixture count barely changes. A 3x5 powder room at 15 sq ft runs roughly $1,500 to $2,250 for a minor renovation and $3,750 to $7,500 for a full one. The toilet, sink, ventilation and waterproofing are all still required, so halving the floor area does not halve the bill.
What is the difference between a minor, partial and full bathroom remodel?+
A minor renovation keeps every fixture where it is and updates what you see — flooring, vanity, paint and fittings. A partial remodel replaces at least one of the three major fixtures, meaning the toilet, sink, or tub and shower, usually alongside new tiling. A full remodel strips the room back and replaces everything, and is the only tier where changing the layout or using custom materials is realistic.
Does moving plumbing increase bathroom remodel cost?+
Substantially. Keeping every fixture on its existing supply and drain lines is what makes a remodel predictable. Moving a sink or vanity within the same wall bay is manageable, but relocating a toilet or shower means new drain runs at the correct fall, opening the floor, and sometimes moving a vent stack — which turns a finish job into a framing job. Get a plumber to look at the drain layout before you commit to a new floor plan.
Do I need a permit to remodel a bathroom?+
A like-for-like fixture swap usually does not need one, but moving plumbing or adding electrical circuits normally does. Permits and inspections run $100 to $1,000 depending on the municipality and the declared value of the work. The inspection is what protects you at resale, when unpermitted bathroom work is one of the more common things a buyer's surveyor flags.
What costs are usually left out of a bathroom remodel quote?+
Demolition and disposal are frequently quoted separately and run $600 to $2,300. Permits are extra again. Beyond that, the costs that appear once walls are open — rotten subfloor under the tub, failed waterproofing, or supply pipes that should be replaced while accessible — are the usual reason a final invoice exceeds the estimate. Hold back a contingency of 10 to 20% on any full remodel of an older bathroom.
Bathroom Remodel Cost Calculator is built and maintained by the RealCostIQ editorial team. Cost ranges and rates are checked against published industry data and contractor quotes, and revised when the underlying figures move. Read our data methodology or more about who builds this. Every calculation runs in your browser — no account, and none of your inputs are stored.
Cost ranges and rates here are checked against contractor quotes and published industry data. If a number still looks off, email Support@RealCostIQ.com and we'll review and fix it.