Area Calculator
Find the area of rectangles, circles, triangles, and more.
Area
60 sq units
length × width
If units are feet
6.67 sq yd
If units are meters
645.83 sq ft
Four formulas cover most jobs
Rectangles multiply the sides; triangles halve a rectangle; circles square the radius against π; trapezoids average their parallel sides. Irregular spaces are handled by slicing them into these shapes and summing.
Mind the units
Area units are squared, so unit conversion squares too: 1 yard = 3 feet, but 1 square yard = 9 square feet. Measuring a floor in feet and buying material priced per square yard is the classic place this bites.
Frequently asked questions
- How does the Area Calculator work?
- Find the area of rectangles, circles, triangles, and more.
- Is the Area Calculator free to use?
- Yes. The Area Calculator is completely free, runs entirely in your browser, and requires no account or sign-up. Your inputs never leave your device.
Related calculators
Percentage Calculator
Solve any percentage problem: percent of, percent change, and more.
Fraction Calculator
Add, subtract, multiply, and divide fractions with simplified results.
Scientific Calculator
A full scientific calculator with trig, logs, and exponents.
Random Number Generator
Generate random numbers in any range, with or without repeats.