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.
Kalkulator Ketepatan
Paint Area Calculator
Paint Area Calculator: Calculate wall or surface area for paint planning. Enter dimensions, subtract a window or door opening if
Kawasan Terkenal
Dimensi Bilik
Beberapa Bilik
Bilik (Kaki + Inci)
ft
in
ft
in
Segi Empat Tepat (Kaki + Inci)
ft
in
ft
in
Dimensi Dinding & Tingkap
Dimensi Dinding Katedral
Square Dimensions
Rectangle Dimensions
Sempadan Segi Empat
Circle Dimensions
Circle Border (Annulus)
Annulus Dimensions
Triangle (3 Sides)
Triangle (Base & Height)
Trapezoid
Poligon Sekata
Kawasan + Kedalaman (Isipadu)
Faktor Sisa BahanPILIHAN
%
Anggarkan Kos BahanPILIHAN
Calculation Results
Terokai Kalkulator Footage Persegi Kami
Pilih kalkulator khusus untuk projek tepat anda — bilik, bentuk, bahan, kawasan luar dan penukaran unit.
Kalkulator Bilik → Kalkulator Rumah → Kalkulator Bilik Tidur → Kalkulator Bilik Mandi → Kalkulator Dapur → Multiple Rooms → Kalkulator Segi Empat → Kalkulator Segi Tiga → Kalkulator Bulatan → Kalkulator Trapezoid → Regular Polygon Calculator → Bentuk Tidak Sekata → Odd Shape → Uneven Sides → Kalkulator Lantai → Kalkulator Jubin → Kalkulator Cat → Kalkulator Konkrit → Kalkulator Penebat → Kalkulator Rumput → Kalkulator Yard → Kalkulator Landskap → Kalkulator Kolam → Kalkulator Garaj → Kalkulator Bumbung → Kalkulator Dinding → Feet & Inches → Kalkulator Inci → Height Width Length → Kaki Persegi kepada Ekar → Cubic Yards Calculator →
Bagaimana Ia Berfungsi
1
Pilih Bentuk
Choose the shape that matches your space.
2
Masukkan Dimensi
Pengukuran input dalam mana-mana unit. Tambah kuantiti, faktor sisa, dan harga bahan.
3
Dapatkan Keputusan
Lihat kawasan dalam kaki², dalam², yd², m², ekar serta anggaran kos — semuanya sekali gus.
Soalan Lazim
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.