1. Measure your driveway
Record the length and width in feet. For tapered driveways, measure both the narrow and wide ends separately.
Apakah kaki persegi Jalan Masuk?
Driveway square footage is the total surface area of a driveway measured in square feet. To calculate driveway square footage, measure the length and width in feet and multiply them together. A typical single-car driveway is 10-12 feet wide and 20-40 feet long, giving 200-480 square feet. Knowing the exact area helps you order the right amount of concrete, asphalt, or pavers and get accurate cost estimates from contractors.
Bermula
Cara mengira kaki persegi Jalan Masuk
To calculate driveway square footage, measure the length and width of the driveway in feet. Multiply length by width for rectangular driveways. For tapered driveways that are wider at one end, use the trapezoid formula: (top width + bottom width) ÷ 2 × length. For circular turnarounds, use the circle formula with the diameter.
2. Select the shape
Choose Segi Empat Tepat for straight driveways, Bulatan for turnarounds, or Trapezoid for driveways that taper from narrow to wide.
3. Dapatkan luas dan kos
View results in square feet and square yards. Enter a price per square foot for concrete, asphalt, or pavers to estimate total project cost.
Rujukan pantas
Rujukan
1 ekar = 43,560 kaki persegi
1 ela persegi = 9 kaki persegi
1 meter persegi = 10.764 kaki persegi
1 inci persegi = 0.00064516 kaki persegi
Formula asas
Formula Asas untuk Luas
Luas ialah jumlah ruang yang diduduki oleh bentuk 2 dimensi. Bentuk itu boleh jadi lantai, dinding, taman permainan atau padang. Formula paling mudah untuk luas digunakan untuk sebarang bentuk segi empat tepat:
Area = Length × Width
Ukur panjang dan lebar ruang dalam kaki. Darabkan dua nilai tersebut untuk mendapatkan luas dalam kaki persegi. Bilik segi empat tepat yang 12 kaki (3.66 meter) panjang dan 10 kaki (3.05 meter) lebar mempunyai luas 120 sq ft (11.15 sq m).
Ela persegi ialah luas yang diukur dalam ela, dan meter persegi ialah luas yang diukur dalam meter. Ukur dalam kaki, cari luas dalam kaki persegi, kemudian tukar kepada unit yang anda perlukan.
Untuk bilik bentuk L, bahagikan lantai kepada 2 bahagian segi empat tepat, kira setiap luas, dan tambahkan keputusan. Tukarkan semua ukuran kepada unit yang sama sebelum mendarab, jika dimensi anda dalam unit berbeza seperti inci dan kaki.
Formula bentuk
Formula Luas untuk Bentuk Berbeza
The Driveway Calculator supports rectangle and circle formulas for paving projects.
Bentuk Segi Empat Tepat
Calculate driveway area for a straight driveway
Menggunakan ukuran dalam kaki: Area (ft²) = Length × Width. A straight driveway 40 feet long and 12 feet wide has an area of 480 square feet. This is the most common driveway shape calculation.
Bentuk Bulatan
Calculate area for a circular turnaround
Menggunakan ukuran dalam kaki: Area (ft²) = π × radius². A circular turnaround with a 20-foot diameter (10 ft radius) has an area of about 314 square feet. Measure the full diameter and divide by 2 for the radius.
Faktor pembaziran
Menambah 10% Lebihan untuk Bahan
Tambahkan 10% lebihan kepada luas yang dikira untuk mengambil kira pembaziran bahan semasa pemotongan, pecah dan pemadanan corak. Faktor pembaziran ini terpakai untuk lantai, karpet, projek jubin dan bahan landskap.
Luas Asal100 sq ft
+10%
Jumlah Pesanan110 sq ft
Total Material = Area × 1.10
Bilik dengan luas lantai 200 sq ft memerlukan 220 sq ft bahan: 200 × 1.10 = 220 sq ft. Tingkatkan lebihan kepada 15% (darab dengan 1.15) untuk corak pemasangan lantai pepenjuru atau projek jubin kompleks dengan banyak potongan. Kalkulator Kaki Persegi termasuk medan faktor pembaziran untuk pengiraan ini.
Soalan Lazim
Soalan Lazim
How do I calculate square footage of a driveway?
Measure the driveway length and width in feet, then multiply them together. A driveway 40 feet long and 12 feet wide is 480 square feet. For curved or tapered driveways, use the trapezoid or circle calculator option.
How many square feet is a typical driveway?
A typical single-car driveway is 200 to 480 square feet (10-12 ft wide × 20-40 ft long). A double-wide driveway is 400 to 960 square feet (20-24 ft wide × 20-40 ft long).
How much does concrete cost per square foot for a driveway?
Concrete driveway installation costs $4 to $8 per square foot on average, including materials and labor. Stamped or colored concrete costs $8 to $18 per square foot. Enter your price per square foot in the calculator to estimate total cost.
How do I calculate a curved driveway area?
For a circular turnaround, use the circle calculator with the diameter. For a curved section, approximate the shape as a trapezoid by measuring the two parallel widths and the length. For complex curves, split into sections and add the areas.
How thick should a concrete driveway be?
A standard residential concrete driveway should be 4 inches thick. For heavy vehicles or RVs, increase to 5-6 inches. The thickness affects the volume of concrete needed but not the square footage calculation.
How do I calculate asphalt for a driveway?
Calculate the driveway area in square feet using length × width. Asphalt costs $3 to $6 per square foot installed. A 480 sq ft driveway would cost $1,440 to $2,880 for asphalt paving.