Area Calculator
Calculate the area of various geometric shapes with ease.
Enter Shape Dimensions
Table of Contents
What is Area?
Area is the measure of the space inside a two-dimensional shape. It represents the amount of surface covered by the shape and is measured in square units such as square meters, square centimeters, square inches, or square feet.
Area Formulas
Rectangle
A = l × w
where l is length and w is width
Square
A = s²
where s is the length of one side
Triangle
A = ½ × b × h
where b is base and h is height
Circle
A = πr²
where r is the radius
How to Calculate Area
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1Identify the shape you're working with
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2Measure the required dimensions (length, width, base, height, radius, etc.)
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3Apply the appropriate formula for the shape
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4Calculate the area using the formula
Practical Examples
Rectangle Example
A rectangle has a length of 5 units and a width of 3 units.
A = l × w
A = 5 × 3
A = 15 square units
Square Example
A square has sides of 4 units each.
A = s²
A = 4²
A = 16 square units
Triangle Example
A triangle has a base of 6 units and a height of 4 units.
A = ½ × b × h
A = ½ × 6 × 4
A = 12 square units
Circle Example
A circle has a radius of 3 units.
A = πr²
A = π × 3²
A ≈ 28.27 square units