Small Bathroom Remodel Cost & Materials Calculator

Plan a small bathroom remodel using your measured tile areas, product box coverage, and your own prices or quotes. Calculate whole boxes for floor and wall tile separately, then build a project budget.

Materials and project budget

This tool does not generate local contractor prices. All costs are in US dollars, including when you measure in meters.

Area measurements

Floor tile Calculate floor tile

Floor area to tile (sq ft)Coverage per box, from product label (sq ft)Material waste allowance (%)Price per box ($)

This tile purchase cost is already included in another budget item

Wall tile Calculate wall tile

Gross wall area selected for tile (sq ft)Openings within selected wall tile area (optional) (sq ft)Coverage per box, from product label (sq ft)Material waste allowance (%)Price per box ($)

This tile purchase cost is already included in another budget item

Use the area that will actually be tiled, not every wall automatically. Subtract only openings inside the selected wall tile area. Coverage is per full box; no individual-tile layout is calculated. Waste starts at 0%: choose your own allowance (0-50%). Changing units clears areas and box coverage; dollar prices stay unchanged.

Equipment, work, and other costs

Enter each cost once. Blank budget items count as zero and are not price estimates. If a quote includes tile, use the relevant checkbox above to keep quantities but exclude that tile purchase from the added costs. Do not count labor, plumbing, or fixtures again if already included in a package quote.

Shower / bathtub ($)Vanity / sink ($)Toilet ($)Faucets / other fixtures ($)Labor & installation ($)Plumbing work ($)Electrical / lighting / ventilation ($)Permits & fees ($)Other materials / delivery / disposal ($)Sales tax amount, if not included above ($)Financial contingency (%)

Financial contingency (0-50%) applies to the entire entered subtotal, including any tax amount. It is extra budget capacity, not a tax calculation or another materials allowance. Omitted costs are not included.

Enable JavaScript to calculate. Manually, round up each net tile area x (1 + waste / 100) divided by coverage per box. Add whole-box costs and your other estimates, then your chosen financial contingency.

How the calculator works

Net wall tile area is your selected gross wall tile area minus openings. Floor and wall quantities are each multiplied by their own waste allowance and rounded up to full boxes using the product's stated box coverage. The box cost is added unless you mark it as already included in another budget item.

Example budget, not a market price

A 40 sq ft floor with 10% waste needs 3 boxes covering 20 sq ft each. At $50 a box, that is $150. A selected wall tile area of 100 sq ft minus 10 sq ft of openings, with 10% waste, needs 10 boxes covering 10 sq ft each. At $30 a box, that is $300. Add $4,550 of other entered costs: the subtotal is $5,000. A 10% financial contingency adds $500, giving a $5,500 plan.

Does a small room have a standard cost per square foot?

Not in this calculator. Scope, location, access, fixtures, hidden damage, and contractor rates can all change the cost. Enter project-specific quotes rather than treating the example as a typical price.

What materials are not estimated automatically?

Adhesive, grout, waterproofing, backer board, fasteners, and ventilation specifications depend on your products and installation. Add their quoted costs under Other materials, and follow manufacturer instructions and applicable requirements. This tool does not validate a waterproofing system or design plumbing and electrical work.