---
title: "Cubic centimeters to US gallons — cm³ to gal converter"
description: "1 cubic centimeter = 0.0002642 US gallons. Convert cubic centimeters to US gallons with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/cubic-cm-to-gallons/
site: "At One Place"
---

# Cubic centimeters to US gallons

**1 cubic centimeter in US gallons: 1 cm³ = 0.0002642 gal**

gal = cm³ × 0.000264172052

To convert cubic centimeters to US gallons, multiply by 0.000264172052. The table below gives the values people look up most often, and the converter works for any number.

## Cubic centimeters to US gallons table

*Common cubic centimeter values converted to US gallons.*

| Cubic centimeters | US gallons |
| --- | --- |
| 1 cm³ | 0.0002642 |
| 2 cm³ | 0.0005283 |
| 3 cm³ | 0.0007925 |
| 4 cm³ | 0.0010567 |
| 5 cm³ | 0.0013209 |
| 10 cm³ | 0.0026417 |
| 15 cm³ | 0.0039626 |
| 20 cm³ | 0.0052834 |
| 25 cm³ | 0.0066043 |
| 30 cm³ | 0.0079252 |
| 40 cm³ | 0.010567 |
| 50 cm³ | 0.013209 |
| 75 cm³ | 0.019813 |
| 100 cm³ | 0.026417 |
| 250 cm³ | 0.066043 |
| 500 cm³ | 0.13209 |
| 1,000 cm³ | 0.26417 |

## How the conversion works

The relationship is gal = cm³ × 0.000264172052. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

> US gallon: US liquid gallon. The imperial gallon is about 20% larger.

## Common questions

### How many US gallons are in one cubic centimeter?

One cubic centimeter equals 0.0002642 US gallons. gal = cm³ × 0.000264172052.

### How do you convert cubic centimeters to US gallons?

Use gal = cm³ × 0.000264172052. So 10 cm³ is 0.0026417 gal.

### How many cubic centimeters are in one US gallon?

One US gallon equals 3,785.4118 cubic centimeters, which is the reverse of the conversion above.

### Is there more than one kind of US gallon?

US liquid gallon. The imperial gallon is about 20% larger.

## Related pages

- [US gallons to Cubic centimeters](https://atoneplace.net/convert/gallons-to-cubic-cm/)
- [Cubic centimeters to Liters](https://atoneplace.net/convert/cubic-cm-to-liters/)
- [Cubic centimeters to Milliliters](https://atoneplace.net/convert/cubic-cm-to-ml/)
- [Cubic centimeters to Cubic meters](https://atoneplace.net/convert/cubic-cm-to-cubic-meters/)
- [Cubic centimeters to US quarts](https://atoneplace.net/convert/cubic-cm-to-quarts/)
- [Cubic centimeters to US pints](https://atoneplace.net/convert/cubic-cm-to-pints/)
- [Cubic centimeters to US cups](https://atoneplace.net/convert/cubic-cm-to-cups/)
- [Cubic centimeters to US fluid ounces](https://atoneplace.net/convert/cubic-cm-to-fl-oz/)
- [Cubic centimeters to Tablespoons](https://atoneplace.net/convert/cubic-cm-to-tablespoons/)
- [Cubic centimeters to Teaspoons](https://atoneplace.net/convert/cubic-cm-to-teaspoons/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)