OhMyCalc

Square Footage Calculator

Calculate the area in square feet and convert to other units. Enter length and width in your preferred unit to get results in square feet, square meters, square yards, and acres.

How to Use the Square Footage Calculator

  1. Enter the dimensions of the area or structure (length, width, height).
  2. Specify material parameters if prompted (thickness, overlap, etc.).
  3. Review the calculated material quantity and coverage area.
  4. Use the results to plan your purchase and budget.

クイックリファレンス

変換元変換先
Paint (1 coat)~0.15 L/m²
Tile 30×30 cm~11 pcs/m²
Wallpaper roll~5.3 m² coverage
Laminate+10% waste allowance
Cement (screed)~20 kg/m² (5 cm)
Bricks~50 pcs/m² wall

使用例

計算式

Area = Length × Width (converted to feet). 1 sq ft = 0.0929 m². 1 acre = 43,560 sq ft.

よくある質問

How to use?
Enter the data and click the calculate button.
Calculation accuracy?
Calculations are performed with high precision.
Is it free?
Yes, all calculators are completely free.