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Calcimator

Area Calculator

Calculate the area and perimeter of common shapes — rectangle, circle, triangle, trapezoid, and ellipse.

Inputs

ft
ft
ft
ft
ft

Results

Area

300 sq ft

Perimeter70 ft
Area (metric)27.87 m²
Area (acres)0.0069 acres

Area

300 sq ft

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Shape — The geometric shape to calculate. Choose from: Rectangle, Circle, Triangle, Trapezoid, Ellipse. default: 0.
  3. Length — Length of the shape or side. Accepts values from 0 ft to 100,000 ft (default: 20 ft).
  4. Width — Width of the shape or side. Accepts values from 0 ft to 100,000 ft (default: 15 ft).
  5. Radius — Distance from center to edge. Accepts values from 0 ft to 100,000 ft (default: 10 ft).
  6. Base — Base length of the shape. Accepts values from 0 ft to 100,000 ft (default: 12 ft).
  7. Height (Triangle) — enter a number in ft. Accepts values from 0 ft to 100,000 ft (default: 8 ft).
  8. Expand "Advanced Options" for additional fine-tuning. These optional inputs let you model more specific scenarios:
  9. Base 1 — enter a number in ft. Accepts values from 0 ft to 100,000 ft (default: 20 ft).
  10. Base 2 — enter a number in ft. Accepts values from 0 ft to 100,000 ft (default: 10 ft).
  11. Height (Trapezoid) — enter a number in ft. Accepts values from 0 ft to 100,000 ft (default: 6 ft).
  12. Semi-Major Axis — enter a number in ft. Accepts values from 0 ft to 100,000 ft (default: 10 ft).
  13. Semi-Minor Axis — enter a number in ft. Accepts values from 0 ft to 100,000 ft (default: 6 ft).
  14. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  15. Area — shown as a numeric value. This is the primary result of this calculator.
  16. Perimeter — shown as a numeric value.
  17. Area (metric) — shown as a numeric value.
  18. Area (acres) — shown as a numeric value.
  19. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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