ADVERT

📦 Area & Volume Calculator

Calculate area, perimeter, surface area, and volume for common 2D shapes and 3D solids including circles, rectangles, triangles, spheres, cylinders, cones, and rectangular prisms.

Area & Volume Calculator

Select a 2D shape or 3D solid and enter its dimensions to get area, perimeter, surface area, and volume. Supports circles, rectangles, triangles, spheres, cylinders, cones, and rectangular prisms.

Shape

Choose the geometry you're working with, then enter the matching measurements.

2D shapes

3D solids

Dimensions (Circle)

Radius

circle area calculatorsphere volume calculatorcylinder volume & surface area

Results

Area

78.539816

Perimeter / circumference

31.415927

How to use this tool

Select the 2D shape or 3D solid you are working with.
Enter the relevant lengths such as radius, height, width, or depth.
Read off area, perimeter, surface area, and volume depending on the shape.

Geometry area and volume calculator

Quickly compute circle area, rectangle area, and triangle area from simple dimensions.
Use sphere, cylinder, cone, and rectangular prism options for 3D volume and surface area.
Ideal for homework, construction estimates, and quick geometry checks.

Formulas used

Circle area = πr², circumference = 2πr.
Sphere area = 4πr², volume = 4/3 πr³.
Cylinder volume = πr²h, surface area = 2πr(r + h); cone volume = 1/3 πr²h.

FAQ

Which units should I use for dimensions?: Use any consistent length units. If you enter meters, area will be in square meters and volume in cubic meters, and so on.
Does this calculator handle irregular shapes?: This tool focuses on common geometric formulas. For irregular shapes, you may need to break them into combinations of these standard shapes.
Can I copy these results into other tools?: Yes. Combine these area and volume results with other calculators in ToolHop—such as unit converters—to continue your workflow.

ADVERT

More like this

Calculate your BMI using metric or imperial units. Instantly check if you are underweight, normal, overweight, or obese.

Solve linear equations, quadratic equations, and 2×2 systems step by step. See exact solutions, discriminants, determinants, and worked algebra.

Work with trig, logs, factorials, powers, hyperbolic functions, and memory features in a beautiful scientific calculator.

Differentiate polynomial functions of x symbolically using the power rule. View f'(x), simplifications, and evaluation at a specific x value with clear, step-by-step working.

Find indefinite and definite integrals of polynomial functions in x. See the antiderivative F(x) + C and compute ∫ from a to b with clear, step-by-step explanations.

Compute matrix addition, subtraction, multiplication, determinant, and inverse for up to 4×4 matrices. Ideal for linear algebra and system of equations checks.

Add, subtract, multiply, divide, and raise complex numbers to integer powers. View modulus, argument, and polar form r∠θ for fast complex arithmetic checks.

Solve any triangle from common combinations like SSS, SAS, ASA, SSA, or right triangles. Find missing sides, angles, area, and perimeter.

ADVERT