Concrete Surface Area Calculator
Calculate the surface area of a slab, driveway, patio, or foundation. Concrete volume requires a separate depth calculation.
Kalkulator Presisi
Kalkulator Luas Persegi untuk Beton
Kalkulator Luas Persegi untuk Beton: Calculate surface area for concrete slabs, driveways, patios, and foundations. Cubic yards need a separate
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 a concrete project?
Measure length and width of the pour area and multiply for surface area in square feet. For how much concrete to order, you also need slab thickness (depth).
How do I convert square footage to cubic yards of concrete?
Multiply area (sq ft) by thickness in feet, then divide by 27 for cubic yards. Example: 200 sq ft × 0.33 ft (4 inches) = 66 cu ft ÷ 27 = 2.44 cubic yards.
How much concrete do I need for a standard 4-inch slab?
For 4-inch thickness, multiply sq ft by 0.0123 to get cubic yards. Example: 500 sq ft × 0.0123 = 6.15 cubic yards. Order 5 to 10% extra for waste, spillage, and uneven subgrade.
What waste factor should I use for concrete?
Add 5 to 10%. Use 5% on flat, well-prepared ground. Use 10% or more on uneven terrain, complex forms, or lots of edges. Running short mid-pour is worse than a little extra.
How do I estimate the cost of a concrete project?
Calculate area, add waste, then enter price per square foot in Estimate Material Cost. Ready-mix concrete often runs $100 to $150 per cubic yard delivered. For cost per sq ft, divide total cost by area.