Paint Area Calculator
Calculate wall or surface area, including a single opening where appropriate. Use your paint manufacturer’s coverage guidance to estimate paint quantity.
Precisionsräknare
Paint Area Calculator
Paint Area Calculator: Calculate wall or surface area for paint planning. Enter dimensions, subtract a window or door opening if
Känt område
Rumsmått
Flera Rum
Rum (Fot + Tum)
ft
in
ft
in
Rektangel (Fot + Tum)
ft
in
ft
in
Vägg- och fönstermått
Domkyrkans väggmått
Square Dimensions
Rectangle Dimensions
Rektangelkant
Circle Dimensions
Circle Border (Annulus)
Annulus Dimensions
Triangle (3 Sides)
Triangle (Base & Height)
Trapets
Regelbunden Polygon
Yta + Djup (Volym)
MaterialavfallsfaktorFRIVILLIG
%
Beräkna materialkostnadFRIVILLIG
Calculation Results
Utforska våra kvadratfotkalkylatorer
Välj en specialiserad kalkylator för ditt exakta projekt – rum, former, material, utomhusytor och enhetsomvandlingar.
Rumskalkylator → Huskalkylator → Sovrums miniräknare → Badrumsräknare → Köksräknare → Multiple Rooms → Rektangelkalkylator → Triangelkalkylator → Cirkelräknare → Trapets kalkylator → Regular Polygon Calculator → Oregelbunden form → Odd Shape → Uneven Sides → Golvkalkylator → Kakelräknare → Färgkalkylator → Betongräknare → Isoleringsräknare → Gräsmatta kalkylator → Gårdsräknare → Landskapsarkitektur → Poolkalkylator → Garagekalkylator → Takräknare → Väggräknare → Feet & Inches → Inches miniräknare → Height Width Length → Sq Ft till Acres → Cubic Yards Calculator →
Hur det fungerar
1
Välj Form
Choose the shape that matches your space.
2
Ange dimensioner
Inmatningsmått i valfri enhet. Lägg till kvantitet, avfallsfaktor och materialpris.
3
Få resultat
Se området i ft², in², yd², m², acres plus kostnadsuppskattning – allt på en gång.
Vanliga frågor
How do I calculate square footage for painting?
Measure height and width of each wall. Multiply for each wall and add. Subtract windows and doors. Wall with Window subtracts openings for you.
How much paint do I need per square foot?
One gallon covers about 350 to 400 sq ft per coat. For two coats, divide total wall area by 175 to 200. Example: 800 sq ft ÷ 175 ≈ 4.5 gallons for two coats.
Should I subtract windows and doors from wall area?
Yes. A standard door is about 21 sq ft (3 × 7 ft). A standard window is about 12 sq ft (3 × 4 ft). Subtract those from total wall area, or use Wall with Window to do it automatically.
How do I calculate paint for exterior walls?
Measure length and height of each exterior wall and multiply. Subtract windows and doors. Add all walls. Exterior coverage is similar to interior (350 to 400 sq ft per gallon), but texture can need up to 50% more paint.
How do I calculate paint for a room with vaulted ceilings?
For the sloped wall, use Cathedral Wall. Enter base width, left wall height, and right wall height. The calculator applies the trapezoid formula for that surface.