Room Paint Calculator & Cost!

Paint Calculator & Room Estimator — get an instant, accurate estimate of how much paint you need and what it will cost, for any room or full home project. No internet connection. Whether you're painting a bedroom, prepping a full house repaint, or quoting a client as a professional painter, this app turns your room measurements into a clear paint quantity, coverage plan, and total project cost in seconds. KEY FEATURES Wall & Ceiling Area Calculator — enter length, width, and height for exact paintable surface area Paint Quantity Estimator — litres or gallons needed, based on coverage rate and number of coats Paint Cost Calculator — budget by cost-per-litre or cost-per-gallon Door & Window Deductions — subtract non-paintable areas for a precise estimate Multi-Room Project Planner — combine rooms into one project total Paint Finish Guide — matte, eggshell, satin, semi-gloss, gloss Built-In Unit Converter — sq ft ⇄ sq m, litres ⇄ gallons, feet ⇄ meters, inches ⇄ cm Estimation History — revisit past calculations anytime Light & Dark Theme 100% Offline, no account required. HOW IT WORKS Enter room dimensions Deduct doors and windows Set paint coverage rate and number of coats Get an instant quantity and cost estimate, saved to your history WHO IT'S FOR Homeowners planning a DIY repaint, renters estimating a touch-up, and painters or contractors quoting a job, anyone who wants to stop overbuying or underbuying paint.