Turn a known wall area into gallons and cans of paint.
Multiplying the wall area by the number of coats and dividing by the per-gallon coverage gives paint needed in gallons. Most store cans are full gallons, so this turns a raw area into exactly how many cans to bring home.
Wall Paint Quantity
Gallons = wall area x coats / coverage per gallon
Gallons = wall area x coats / coverage per gallon Multiplying the wall area by the number of coats and dividing by the per-gallon coverage gives paint needed in gallons.
Most store cans are full gallons, so this turns a raw area into exactly how many cans to bring home.
This calculator takes 3 inputs: Wall area, Coats, Coverage per gallon. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.