# Cylinder Volume Calculator

URL: https://speedycalculator.com/calculators/math/cylinder/
Last updated: 2026-10-25

> The cylinder calculator finds the volume, lateral area and total surface area of a cylinder from its radius and height, with results in litres, gallons and more.

## Inputs

- Radius (m, cm, mm, km, in, ft, yd, mi)
- Height (m, cm, mm, km, in, ft, yd, mi)

## Results

- Volume
- Lateral surface area
- Total surface area

## Formula

```
V = π r² h
Total surface = 2πr(r + h)
```

## Explanation

Cans, pipes, tanks and columns are cylinders.

### How to use the Cylinder Volume Calculator

- **Radius**
- **Height**
- Want to work backwards? Type a value into **Volume** and **Height** is calculated for you.

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Multiply the area of the circular base by the height for volume.

### Inputs explained

FieldWhat to enterRadiusUnits: m, cm, mm, km, in, ft …HeightUnits: m, cm, mm, km, in, ft …

### What each result means

- **Volume** = pi×[Radius]^2×[Height]
- **Lateral surface area** = 2×pi×[Radius]×[Height]
- **Total surface area** = 2×pi×[Radius]×([Radius] + [Height])

### Example values

How the main result changes when **Height** changes and everything else stays at the example values above:

Height (m)Volume (m³)10.78541.51.1821.572.51.9632.3643.14

## Worked example

Inputs — Radius: 0.5 m; Height: 2 m.

Results — **Volume = 1.57 m³**; Lateral surface area = 6.28 m²; Total surface area = 7.85 m².

## FAQ

**I know the diameter, not the radius.**
Halve the diameter.

**How do I find a tank’s capacity in gallons?**
Choose US gal or UK gal in the volume units.

**What formula does the Cylinder Volume Calculator use?**
V = π r² h.

**Can I work backwards from the result?**
Yes. Type the result you want into Volume and the calculator finds the matching height.