Area: -
Area: -
Perimeter: -
Area Calculator
Calculate the area of various shapes including rectangles, circles, and triangles.
How the Area Calculator Works
Select your shape and enter the required dimensions. The calculator uses standard geometric formulas:
- Rectangle: Area = Length × Width
- Circle: Area = π × r²
- Triangle: Area = ½ × Base × Height
- Trapezoid: Area = ½ × (Base1 + Base2) × Height
- Ellipse: Area = π × a × b
Example
A room that is 5m × 4m:
- Area: 20 m² (215.28 ft²)
- Perimeter: 18 m
- For flooring (+10% waste): ~22 m² needed
FAQ
- How do I calculate the area of a room?
- Measure the length and width in meters or feet, then multiply them together. For irregular rooms, divide into rectangles and add the areas.
- How do I convert square meters to square feet?
- Multiply square meters by 10.764 to get square feet. For example, 10 m² = 107.64 ft².
- How much flooring do I need?
- Calculate the total floor area, then add 10% extra for cuts and waste. The calculator shows the area in both m² and ft².