1. Measure each section
Use a tape measure to record the length and depth of each straight countertop section in feet or inches. Include any island or peninsula sections separately.
Apakah kaki persegi Permukaan Kaunter?
Countertop square footage is the total surface area of a countertop measured in square feet. To calculate countertop square footage, measure the length and depth of each countertop section in inches, multiply to get square inches, then divide by 144. Most kitchen countertops have a standard depth of 25.5 inches. For L-shaped or U-shaped kitchens, measure each straight section separately and add the areas together.
Bermula
Cara mengira kaki persegi Permukaan Kaunter
To calculate countertop square footage, measure each straight section of countertop. Record the length along the wall and the depth from the wall to the front edge. Multiply length by depth to get the area. For L-shaped kitchens, measure each arm of the L separately and add the areas together.
2. Select your shape
Choose Segi Empat Tepat for a single straight section, or L-Bentuk for countertops that wrap around a corner. Enter dimensions for each section.
3. Dapatkan luas dan kos
View total countertop area in square feet. Enter a price per square foot for granite, quartz, marble, or laminate to estimate total material and installation 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
Area Formulas for Countertops
The Countertop Calculator uses the rectangle formula to calculate surface area for straight countertop sections.
Bentuk Segi Empat Tepat
Calculate countertop surface area
Menggunakan ukuran dalam kaki: Area (ft²) = Length × Depth. A countertop 8 feet long and 2.125 feet deep (25.5 inches) has 17 square feet of surface area. Measure each straight section separately and add for L-shaped or U-shaped countertops.
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 measure countertop square footage?
Measure each straight section of countertop in inches (length and depth), multiply to get square inches, then divide by 144 to convert to square feet. Add all sections together. A countertop section 96 inches long and 25.5 inches deep is 2,448 sq in or 17 sq ft.
How many square feet is a typical kitchen countertop?
A typical kitchen countertop ranges from 25 to 50 square feet, depending on the kitchen layout. An average L-shaped kitchen has about 30-40 sq ft of countertop surface.
How much does granite cost per square foot?
Granite countertops cost $40 to $100 per square foot installed, depending on the stone grade and edge profile. Budget granite starts at $40/sq ft, mid-range at $50-75/sq ft, and premium exotic granite at $75-100+ per sq ft.
How do I calculate an L-shaped countertop?
Split the L-shaped countertop into two rectangular sections. Measure the length and depth of each section, calculate the area of each, and add them together. Use the L-Bentuk option in the calculator.
What is the standard countertop depth?
Standard kitchen countertop depth is 25 to 25.5 inches (about 2.125 feet). Island countertops may be deeper at 27 to 30 inches. Bathroom vanity countertops are typically 22 inches deep.
How much does quartz cost per square foot?
Quartz countertops cost $50 to $120 per square foot installed. Entry-level quartz starts at $50/sq ft, mid-range at $65-85/sq ft, and premium brands at $85-120/sq ft.