Area Calculator
Calculate the area of rectangles, triangles, circles, and more.
What is an Area Calculator?
Enter your measurements and select a shape to instantly calculate area. Useful for geometry, construction, landscaping, and more.
Enter your measurements and select a shape to instantly calculate area. Useful for geometry, construction, landscaping, and more.
How to Calculate Area
- Rectangle:
Area = length × width - Triangle:
Area = 0.5 × base × height - Circle:
Area = π × radius²
Area in Real Life
- Estimating paint or flooring needed for a room
- Calculating land or garden plots
- Planning construction or landscaping projects
How to Build Geometry Skills with Area Calculations
- Draw Diagrams: Sketch the shape and label dimensions before calculating.
- Use Consistent Units: Always use the same units for all measurements.
- Double-Check Inputs: Review your numbers and formulas for accuracy.
- Practice with Real Objects: Measure tables, rooms, or gardens and calculate their area.
- Apply to Projects: Use area calculations for home improvement, crafts, or science experiments.
Example: For a rectangle 10m × 5m, area = 10 × 5 = 50 m². For a circle with radius 6m, area = π × 6² ≈ 113.10 m².
Frequently Asked Questions about Area
Area = length × width. Enter both values and the calculator will do the rest.
Area = 0.5 × base × height. Enter base and height and the calculator will do the rest.
Area = π × radius². Enter the radius and the calculator will do the rest.