Paint job calculator
Square footage, surface, and coats in — gallons, labor hours, and a price range out. Instant, right on this page. It uses the same coverage and production-rate math as Paint Portal's quoting engine.
How this is calculated
- Gallons = square footage × coats ÷ coverage. Coverage rates: walls 350, ceilings 350, trim 400 sq ft per gallon — the same defaults Paint Portal's quoting engine uses. We round up to whole gallons to buy.
- Labor hours = square footage × coats ÷ production rate for one painter. Rates by surface and tool (sq ft/hour): walls roll 150, brush 80, spray 400; ceilings roll 100, brush 60, spray 350; trim roll 50, brush 50, spray 120. A two-painter crew finishes in about half the time.
- Price = paint ($45/gallon retail) plus labor billed at $60/hour — Paint Portal's default rates. The ±15% band reflects prep, surface condition, and how your local labor rate compares; set your own rates inside the app for an exact quote.
- This is a quick field estimate for a single surface. A full quote in Paint Portal handles whole rooms — walls, ceilings, trim, doors, primer, prep, and openings — together.
Quote the whole job, not just one wall
The free calculator is a head-start. Inside Paint Portal you measure room by room, set your rates and margin, and send a branded quote the client signs and pays — then run the job and see what you actually made.
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