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 Presisi
Paint Area Calculator
Paint Area Calculator: Calculate wall or surface area for paint planning. Enter dimensions, subtract a window or door opening if
Daerah yang Diketahui
Dimensi Ruangan
Beberapa Ruangan
Ruangan (Kaki + Inci)
ft
in
ft
in
Persegi Panjang (Kaki + Inci)
ft
in
ft
in
Dimensi Dinding & Jendela
Dimensi Dinding Katedral
Square Dimensions
Rectangle Dimensions
Perbatasan Persegi Panjang
Circle Dimensions
Circle Border (Annulus)
Annulus Dimensions
Triangle (3 Sides)
Triangle (Base & Height)
Trapesium
Poligon Beraturan
Luas + Kedalaman (Volume)
Faktor Limbah BahanOPSIONAL
%
Perkirakan Biaya BahanOPSIONAL
Calculation Results
Jelajahi Kalkulator Luas Persegi Kami
Pilih kalkulator khusus untuk proyek Anda — ruangan, bentuk, bahan, area luar ruangan, dan konversi unit.
Kalkulator Ruangan → Kalkulator Rumah → Kalkulator Kamar Tidur → Kalkulator Kamar Mandi → Kalkulator Dapur → Multiple Rooms → Kalkulator Persegi Panjang → Kalkulator Segitiga → Kalkulator Lingkaran → Kalkulator Trapesium → Regular Polygon Calculator → Bentuk Tidak Beraturan → Odd Shape → Uneven Sides → Kalkulator Lantai → Kalkulator Ubin → Kalkulator Cat → Kalkulator Beton → Kalkulator Isolasi → Kalkulator Rumput → Kalkulator Halaman → Kalkulator Lansekap → Kalkulator Kolam Renang → Kalkulator Garasi → Kalkulator Atap → Kalkulator Dinding → Feet & Inches → Kalkulator Inci → Height Width Length → Kaki Persegi ke Hektar → Cubic Yards Calculator →
Cara Kerjanya
1
Pilih Bentuk
Choose the shape that matches your space.
2
Masukkan Dimensi
Masukkan pengukuran dalam satuan apa pun. Tambahkan kuantitas, faktor limbah, dan harga bahan.
3
Dapatkan Hasil
Lihat luas dalam ft², in², yd², m², hektar ditambah perkiraan biaya — semuanya sekaligus.
Pertanyaan yang Sering Diajukan
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.