Cabinet Paint Calculator — Quarts, Primer & Cost
Add the area of every door and drawer front, double it if you are painting both sides, then add any measured cabinet-box area. Multiply by the number of coats, divide by your paint's coverage, then round up to the next purchasable quart or half-litre. For the example kitchen below, that is 3 quarts of top coat and 2 quarts of primer.
Units
The front panel only — not the drawer depth. Count false fronts too.
Doors and drawers are usually painted front and back, edges included.
Primer coats
Top coats
Application
Spray/roll waste defaults are editable planning estimates, not manufacturer specifications.
Coverage preset
Currency
Optional — leave empty to skip the cost estimate.
Enter your door and drawer sizes to get quarts or litres of top coat, primer and an optional cost estimate.
What changes the answer
Door and drawer sizes · painting both sides · including cabinet boxes · primer coverage (check the primer TDS — never assume it matches the top coat) · number of coats · spray vs roll waste · the purchase unit (whole quarts or half-litres).
Worked examples
Standard kitchen — 20 doors, 8 drawer fronts, roll
Area: 20 doors × 14×20 in × 2 sides + 8 drawers × 24×6 in × 2 sides = 93.8 sq ft. Top coat: 93.8 × 2 coats ÷ 400 sq ft/gal × 4 qt/gal × 1.10 waste = 2.06 qt → buy 3 quarts. Primer: 93.8 × 1 coat ÷ 400 × 4 × 1.10 = 1.03 qt → buy 2 quarts. At the example prices of $28/qt top coat and $24/qt primer, materials cost $132.
Large kitchen with cabinet boxes — 30 doors, 10 drawers, spray
Area: doors and drawers (both sides) 136.7 sq ft + measured box area 175 sq ft = 311.7 sq ft. Top coat: 311.7 × 2 ÷ 400 × 4 × 1.30 spray waste = 8.10 qt → buy 9 quarts (2 gal + 1 qt). Primer: 311.7 × 1 ÷ 400 × 4 × 1.30 = 4.05 qt → buy 5 quarts. At the example prices, materials cost $372.
Fronts-only refresh — 12 doors, 4 drawers, no primer
Area: fronts only = 27.3 sq ft. Top coat at 450 sq ft/gal coverage with 8% waste: 27.3 × 2 ÷ 450 × 4 × 1.08 = 0.52 qt → buy 1 quart. No primer. At the example price, materials cost $28.
Common mistakes
- Counting doors but forgetting drawer fronts and false drawer panels.
- Forgetting the backs and edges of doors and drawers.
- Treating "one gallon is enough" as the answer instead of computing quarts from the actual area.
- Using the same amount for primer and top coat — or skipping primer entirely.
- Applying wall-paint coverage (350–400 sq ft/gal) to a cabinet enamel without checking its TDS.
- Choosing spray but keeping roll waste — spraying typically needs 30–40% more paint.
- Assuming primer coverage equals top-coat coverage instead of reading the primer TDS.
- Including cabinet interiors without measuring them first.
How to measure your cabinets
Count every front
Count doors, drawer fronts and false drawer panels — each one is a painted rectangle.
Measure width × height
Measure each door and drawer front; group identical sizes and multiply by the count.
Decide on both sides
Painting backs and edges doubles the door and drawer area; fronts-only halves the paint.
Measure visible boxes
Face frames, side panels and island backs go into the box area — only if you measure them. Interiors are optional and must be measured too.
Check the TDS coverage
Read coverage from the paint and primer technical data sheets; cabinet enamels differ from wall paint, and primer differs from top coat.
Pick the application method
Roll/brush wastes about 10%; spraying wastes more (about 30%) because of overshoot — adjust the waste field to match your setup.
Frequently asked questions
How much paint do I need for kitchen cabinets?
Compute the area of every door and drawer front (double it for both sides), add any measured cabinet-box area, multiply by the number of coats and divide by your paint's coverage. The example kitchen on this page — 20 doors and 8 drawer fronts, both sides — works out to 93.8 sq ft and needs 3 quarts of top coat and 2 quarts of primer. Most kitchens land in the 2–10 quart range, which is why this calculator buys quarts, not gallons.
Do I need primer on cabinets?
Usually yes on bare wood, when going from dark to light, or on glossy or damaged surfaces — primer is what makes the top coat stick and cover evenly. Sound, previously painted cabinets in a similar color can sometimes skip it. Either way, primer coverage must come from the primer's own TDS: never assume it matches the top coat, which is why this calculator asks for it separately.
Does spraying cabinets use more paint?
Yes. Overshoot and equipment loss mean spraying typically needs 30–40% more paint than rolling or brushing the same area. This calculator defaults to 30% extra when you pick spray and 10% for roll/brush — both are editable planning estimates, not manufacturer specifications, so adjust them to your equipment and technique.
Do I need to paint the cabinet boxes?
Only if you want to — and this calculator never estimates box area for you. There is no reliable rule of thumb linking box area to door area, so if you are painting face frames, side panels or island backs, measure them and enter the total in the box area field. Interiors are optional; if you paint them, measure and add that area too.
Why quarts instead of gallons?
Cabinet projects are small: even a large kitchen with boxes rarely exceeds 10 quarts of top coat, and a fronts-only refresh can fit in a single quart. Buying a gallon by default wastes half the can. This calculator rounds up to the next purchasable unit — whole quarts in US units, half-litres in metric — and when the total reaches a gallon it shows the purchase as 2 gal + 1 qt instead of a decimal gallon.
Sources
- C2 Paint Cabinet & Trim technical data sheet — Supports the 400 sq ft/gal cabinet/trim coverage preset (TDS quotes 400–450 sq ft/gal).
- B&Q, Wickes and COAT paint calculators — Support the 10% roll/brush waste default (retailer calculator convention, not cabinet-specific).
- Paint Pricing: How Much Paint for Kitchen Cabinets — Supports the 30% spray waste default (content-site estimate of 30–40% extra for spraying — editable here, not a manufacturer spec).