---
title: "2.5 L to gal = 0.66043 gal"
description: "2.5 liters is 0.66043 US gallons. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/2-5-liters-to-gallons/
site: "At One Place"
---

# 2.5 L to gal

**2.5 liters in US gallons: 2.5 L = 0.66043 gal**

gal = L × 0.2641720524

2.5 liters is 0.66043 US gallons. To get there, multiply by 0.2641720524.

## Values either side

*Liters near 2.5, converted to US gallons.*

| Liters | US gallons |
| --- | --- |
| 0.5 L | 0.13209 |
| 1 L | 0.26417 |
| 1.5 L | 0.39626 |
| 2 L | 0.52834 |
| 2.5 L ← | 0.66043 |
| 3 L | 0.79252 |
| 4 L | 1.056688 |
| 5 L | 1.32086 |
| 6 L | 1.585032 |

## How the conversion works

The relationship is gal = L × 0.2641720524. 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

### What is 2.5 L in US gallons?

2.5 L is 0.66043 gal.

### How do you convert liters to US gallons?

Multiply by 0.2641720524.

## Related pages

- [Liters to US gallons](https://atoneplace.net/convert/liters-to-gallons/)
- [2.5 gal to L](https://atoneplace.net/convert/2-5-gallons-to-liters/)
- [0.5 L to gal](https://atoneplace.net/convert/0-5-liters-to-gallons/)
- [1 L to gal](https://atoneplace.net/convert/1-liters-to-gallons/)
- [1.5 L to gal](https://atoneplace.net/convert/1-5-liters-to-gallons/)
- [2 L to gal](https://atoneplace.net/convert/2-liters-to-gallons/)
- [3 L to gal](https://atoneplace.net/convert/3-liters-to-gallons/)
- [4 L to gal](https://atoneplace.net/convert/4-liters-to-gallons/)
- [5 L to gal](https://atoneplace.net/convert/5-liters-to-gallons/)
- [6 L to gal](https://atoneplace.net/convert/6-liters-to-gallons/)

## 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/)