Concrete Surface Area Calculator
Calculate the surface area of a slab, driveway, patio, or foundation. Concrete volume requires a separate depth calculation.
Kalkulator Ketepatan
Kalkulator Footage Persegi untuk Konkrit
Kalkulator Footage Persegi untuk Konkrit: Calculate surface area for concrete slabs, driveways, patios, and foundations. Cubic yards need a separate
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 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.