Disclaimer — PaintRoomCalc

Estimates only. Coverage rates vary by brand, surface texture and application method. Always defer to the paint manufacturer's label, and buy about 10 percent extra for touch-ups.

Painting involves ladders, solvents and possibly lead paint in homes built before 1978. Follow safety guidance, ventilate the space, and consider professional help for large, high or commercial jobs.

PaintRoomCalc is not a substitute for professional advice. Use the results as a planning aid, not as a guarantee of exact material needs.

Not professional guidance. The calculators are built from widely used coverage averages and standard door and window deductions. They are not a survey, a quote, or the opinion of a licensed contractor. For structural work, historic homes, or anything above a single story, engage a qualified professional before you commit money or time.

Advertising and affiliations. If advertising appears on the site, it is placed by third-party networks and does not reflect our endorsement of any product. We may earn a commission from some links, but that does not change the estimates, which are computed the same way for every visitor.

No guarantee of availability. We aim to keep every tool working, but we cannot promise the site will be online at all times or that a specific calculator will suit your exact wall. If a result looks wrong for your situation, trust the paint label and your own measure over the screen.