Paint Calculator Estimator

Never overbuy paint again. Size your wall, set the coats, and get exact gallons, cans and cost in seconds — doors and windows subtracted for you.

Stop guessing how much paint to buy. PaintCalc turns your wall size, number of coats and coverage rate into the exact gallons and cans you need — before you ever reach the checkout.

Most estimators spit out one number and leave you to figure out the rest. PaintCalc sizes a single wall or a whole room, subtracts every door and window, adds a waste allowance and even prices the job by the can — so you walk into the store knowing precisely what to grab and what it will cost.

WHAT YOU GET

• Exact gallons and cans for any wall, ceiling or trim — no more half-empty tins
• Whole-room totals that add up every surface in one job
• Automatic openings deduction so you never over-buy on rooms full of glass
• Coat count and coverage controls that match your paint and surface
• Price-per-can costing that turns volume into a real dollar total
• Feet or metric units, plus a built-in coverage, sheen and prep guide

PERFECT FOR

• DIY decorators repainting a room over the weekend
• Homeowners planning a full interior refresh
• Landlords and flippers costing out several rooms
• Tradespeople quoting a job on the spot

WHY NOT JUST GUESS OR USE A WEBSITE? Guessing leaves you short mid-wall or stuck with wasted tins, and web calculators forget your rooms the moment you close the tab. PaintCalc keeps every surface, saves your projects and runs with zero bars in the empty room you are painting.

PRIVACY Fully offline. No account, no ads, no tracking — your measurements stay on your device.

FULL ACCESS The Calculate tool is free to try. A PaintCalc plan unlocks the whole toolkit: whole-room totals, price-per-can costing and saved projects. Choose weekly, yearly, or a one-time lifetime unlock — cancel a subscription anytime in your Apple account settings.

Size up your first wall now and buy paint with confidence.

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