Paint Cost Calculator per Room (2026 Prices)
Free paint cost calculator: gallons times store price, plus primer and tools, into a total budget.
Your budget stays on this page. No account, no uploads — what you type never leaves your browser.Try: Paint gallons needed=2, Paint price per gallon=45, Primer gallons needed=1, Primer price per gallon=30, Tools budget (roller, tray, tape)=40 → $90, $30, $40, $160
How to use
The cost calculator turns gallon counts into money. Take the paint and primer gallons from any of the other tools, enter your local store prices, and add a tools budget for rollers, trays, tape and drop cloths. The calculator totals paint, primer and tools so you know the full spend before shopping.
Prices vary by region and brand: budget lines run about 20 to 35 dollars per gallon, mid-range 35 to 55, and premium 55 to 80, with primer near 30. Enter the exact price you expect to pay for the most accurate budget, and adjust it each season as prices change.
These numbers are material only. If you hire a painter, labor often runs several times the paint cost and varies by region, so call a couple of local pros for a full quote before you commit. Remember sales tax on supplies, and keep a small buffer for an extra roller or a second can if the first batch looks thin on the second coat. Recheck the price field each season, because paint costs drift with raw-material prices and freight.
FAQ
How much does paint cost per gallon in 2026?
Budget paint runs about 20 to 35 dollars per gallon, mid-range 35 to 55, and premium lines 55 to 80. Primer sits around 30. The calculator uses whatever price you enter, so plug in your local store price for an accurate total.
How do I include primer in the budget?
Take the primer gallons from the primer, ceiling and trim calculator and multiply by your primer price (about 30 dollars per gallon). Add it to the top-coat cost for the full paint spend.
What tools add to the budget?
Rollers, trays, extension poles, painter tape, drop cloths and brushes typically add 30 to 60 dollars to a room. Quality tools save time and reduce drips.