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.
Calculadora de precisión
Paint Area Calculator
Paint Area Calculator: Calculate wall or surface area for paint planning. Enter dimensions, subtract a window or door opening if
Área Conocida
Dimensiones de la habitación
Varias Habitaciones
Habitación (Pies + Pulgadas)
ft
in
ft
in
Rectángulo (Pies + Pulgadas)
ft
in
ft
in
Dimensiones de paredes y ventanas
Dimensiones de la pared de la catedral
Square Dimensions
Rectangle Dimensions
Borde rectangular
Circle Dimensions
Circle Border (Annulus)
Annulus Dimensions
Triangle (3 Sides)
Triangle (Base & Height)
trapezoide
Polígono Regular
Área + Profundidad (Volumen)
Factor de desperdicio de materialesOPCIONAL
%
Estimar el costo del materialOPCIONAL
Calculation Results
Explore nuestras calculadoras de pies cuadrados
Elija una calculadora especializada para su proyecto exacto: habitaciones, formas, materiales, áreas exteriores y conversiones de unidades.
Calculadora de habitaciones → Calculadora de casa → Calculadora de dormitorio → Calculadora de baño → Calculadora de cocina → Multiple Rooms → Calculadora rectangular → Calculadora de Triángulos → Calculadora de círculos → Calculadora de trapezoide → Regular Polygon Calculator → Forma irregular → Odd Shape → Uneven Sides → Calculadora de pisos → Calculadora de azulejos → Calculadora de pintura → Calculadora de Concreto → Calculadora de aislamiento → Calculadora de césped → Calculadora de yardas → Calculadora de paisajismo → Calculadora de piscina → Calculadora de garaje → Calculadora de techo → Calculadora de pared → Feet & Inches → Calculadora de pulgadas → Height Width Length → Pies cuadrados a Acres → Cubic Yards Calculator →
Cómo funciona
1
Seleccionar forma
Choose the shape that matches your space.
2
Introducir dimensiones
Introduzca medidas en cualquier unidad. Agregue cantidad, factor de desperdicio y precio del material.
3
Obtener resultados
Vea el área en pies², pulgadas², yd², m², acres más una estimación de costos, todo a la vez.
Preguntas frecuentes
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.