---
title: "Volume Calculator — Sphere, Cylinder, Cone, Cube & More"
description: "Free volume calculator for sphere, cube, cylinder, cone, rectangular prism, pyramid. Metric (cm³, m³) and imperial (ft³, in³) with litre and gallon conversions."
url: "https://worldcalculators.org/calculators/volume/"
canonical: "https://worldcalculators.org/calculators/volume/"
---

# Volume Calculator

Free volume calculator for sphere, cube, cylinder, cone, rectangular prism, pyramid. Metric (cm³, m³) and imperial (ft³, in³) with litre and gallon conversions.

## Quick answer

Key formulas: Sphere = (4/3)πr³  ·  Cylinder = πr²h  ·  Cone = (1/3)πr²h  ·  Cube = s³. Conversions: 1 m³ = 1,000 L; 1 US gal = 3.785 L; 1 UK gal = 4.546 L.

## Volume Units by Country

Note: A US gallon (3.785 L) ≠ UK gallon (4.546 L). US mpg and UK mpg are not interchangeable — UK mpg appears ~20% better.

## Frequently Asked Questions

V = (4/3)πr³. For r = 5 cm: V = (4/3) × π × 125 ≈ 523.6 cm³ = 523.6 mL ≈ 0.524 litres.
US gallon = 3.785 litres; UK (imperial) gallon = 4.546 litres. The UK gallon is 20% larger. This is why UK fuel economy figures (mpg) look better than US figures even for the same car.

Source: https://worldcalculators.org/calculators/volume/
Markdown mirror of the HTML page. Prefer this URL for RAG; the interactive calculator still lives on the HTML page.