Home Improvement
Area calculator for common shapes
Get the area without swapping formulas. Choose a rectangle, square, circle, triangle, trapezoid, or ellipse, enter dimensions in feet or meters, and see the result in square feet, square yards, and square meters. For an irregular outline, split it into simple shapes, calculate each piece, then add the areas and subtract openings.
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Area Calculator
Find the area of common shapes in square feet, square yards, and square meters.
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Laser distance measureMeasure room dimensions before entering them in the calculator.Paid link · Check current price ↗As an Amazon Associate I earn from qualifying purchases.The math, plainly
How it works
- 01
Choose a shape; the calculator shows only the dimensions needed for that formula.
- 02
Enter all dimensions in the selected unit. Meter inputs are converted before the area is calculated.
- 03
The result is shown in square feet, square yards, and square meters.
Try a real scenario
12 × 10 ft rectangle
InputsLength 12 ft, width 10 ft
Result120 sq ft, 13.33 sq yd, or 11.15 sq m.
More from Amazon
More options for this calculator
Tape measure (paid link)
Measure room and project dimensions before entering them here.
Measuring wheel (paid link)
Measure longer outdoor distances for area estimates.
Grid paper pad (paid link)
Sketch a room or project footprint to keep dimensions organized.
As an Amazon Associate I earn from qualifying purchases.