Measure the shell
Room perimeter × wall height, plus any selected ceiling.
Room-by-room paint planning
Paint plans
that add up.
Measure several rooms, subtract openings, tune the real coverage on your cans, and leave with a practical shopping plan.
- No signup
- No uploads
- Editable assumptions
Weekend refresh3 rooms
Living14 × 18
Bed12 × 10
Office9 × 10
Wall paint5.75 gal1 bucket + 3 quarts
Free multi-room estimator
Build your paint plan
Start with the example, add every room using the same wall and ceiling products, then tune the coverage printed on your cans.
Local-first: calculations stay in this browser. Saving is optional and manual.
01
Measure your rooms
Rectangular rooms, walls, flat ceilings, and opening deductions.
02
Fine-tune the cans
Use the coverage and price printed on the products you plan to buy.
Paint assumptions
Shared project assumptions
Wall paint
Ceiling paint
Method you can inspect
No mystery multiplier.
We show the areas, deductions, coats, coverage, and waste behind every gallon. Change any assumption to match the paint and surfaces in front of you.
Read the full methodologyRemove openings
Doors, windows, fireplaces, arches, and other unpainted areas.
Apply the product
Coats and waste divided by the coverage printed on your can.
Worked example
A 12 × 10 bedroom
With 8-foot walls, one standard door, two standard windows, two coats, and 10% waste, the starter example estimates about 1.77 gallons of wall paint—rounded to two 1-gallon cans for the shopping list.