Paint Calculator

Formatting only. This does not change the calculation.
Surface actually being painted, after deducting openings. Same area unit as the coverage rate.
Total area of everything not being painted.
Number of full coats over the whole area.
Spreading rate published for the product, per coat. Read it off the tin or the manufacturer data sheet.
Industrial coating mode only: percentage of the wet film that remains as dry film.
Industrial coating mode only.
Industrial coating mode only: overspray and surface-profile losses applied to the theoretical spreading rate.
Coverage mode only: how much paint you already have.
Charged against the net painted area, not per coat.
Paint needed
20.00 L
Paint Calculator
Paint needed
5.283 US gal
Net paintable area
100.00
Coverage rate used
10.000
Paint cost
500.00
Labour cost
0.00
Total cost
500.00
Worked out from 1 + waste_percent/100 and 4 other sources.
Coverage rates are published per product and vary with surface porosity, texture and application method; buy from a measured take-off and keep a tin in reserve for touch-ups.

How this is worked out

1 step
  1. Paint = 100 m2 x 2 coat(s) / 10 m2 per litre x (1 + 0/100) = 20 L

Results are general information, not financial, tax, legal, medical or engineering advice.