Wall / Interior Painting Calculation

Wall Painting Calculator is used to estimate the number of cans required to paint the walls by automatically subtracting doors and windows from the interior wall area. Enter the width and height and get the result.

Wall Painting Calculator

The Results

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Formulas :

Area = Width * Height

Total Area without windows and doors substituted = Total area - (Area of window + area of door)

Total Area with windows and doors substituted = Total area + (Area of window + area of door)

Number of cans = Total area/canval

where,

w1w,w2w,w3w = Width of the first,second and third wall respectively.
w1h,w2h,w3h = Height of the first,second and third wall respectively.
d1w,d2w = Width of the first and second door respectively.
d1h,d2h =Height of the first and second door respectively.
Win1w,Win2w =Width of the first and second window respectively.
Win1h,Win2h =Height of the first and second window respectively.
canval = Value of the area (in sq.ft.) which can be painted by a can.

Calculation of number of cans required for wall painting is made easier. Free online interior paint calculator.

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Wall 1\'s Width (in ft.)
Wall 1\'s Height (in ft.)
Wall 2\'s Width (in ft.)
Wall 2\'s Height (in ft.)
Wall 3\'s Width (in ft.)
Wall 3\'s Height (in ft.)
Wall 4\'s Width (in ft.)
Wall 4\'s Height (in ft.)
Door 1\'s Width (in ft.)
Door 1\'s Height (in ft.)
Door 2\'s Width (in ft.)
Door 2\'s Height (in ft.)
Window 1\'s Width (in ft.)
Window 1\'s Height (in ft.)
Window 2\'s Width (in ft.)
Window 2\'s Height (in ft.)
A Can can paint (in sq. ft.)

Wall 1\'s Area	= (sq. ft.)
Wall 2\'s Area	= (sq. ft.)
Wall 3\'s Area	= (sq. ft.)
Wall 4\'s Area	= (sq. ft.)
Total Area without windows and doors substituted	= (sq. ft.)
Total Area with windows and doors substituted	= (sq. ft.)
Number of cans	=