---
title: "Imperial gallons to Liters — imp gal to L converter"
description: "1 imperial gallon = 4.54609 liters. Convert imperial gallons to liters with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/imperial-gallons-to-liters/
site: "At One Place"
---

# Imperial gallons to liters

**1 imperial gallon in liters: 1 imp gal = 4.54609 L**

L = imp gal × 4.54609

To convert imperial gallons to liters, multiply by 4.54609. The table below gives the values people look up most often, and the converter works for any number.

## Imperial gallons to liters table

*Common imperial gallon values converted to liters.*

| Imperial gallons | Liters |
| --- | --- |
| 1 imp gal | 4.54609 |
| 2 imp gal | 9.09218 |
| 3 imp gal | 13.63827 |
| 4 imp gal | 18.18436 |
| 5 imp gal | 22.73045 |
| 10 imp gal | 45.4609 |
| 15 imp gal | 68.19135 |
| 20 imp gal | 90.9218 |
| 25 imp gal | 113.6522 |
| 30 imp gal | 136.3827 |
| 40 imp gal | 181.8436 |
| 50 imp gal | 227.3045 |
| 75 imp gal | 340.9567 |
| 100 imp gal | 454.609 |
| 250 imp gal | 1,136.5225 |
| 500 imp gal | 2,273.045 |
| 1,000 imp gal | 4,546.09 |

## How the conversion works

The relationship is L = imp gal × 4.54609. Both units measure volume, so the conversion is a fixed factor that never changes.

> Imperial gallon: UK gallon.

## Common questions

### How many liters are in one imperial gallon?

One imperial gallon equals 4.54609 liters. L = imp gal × 4.54609.

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

Use L = imp gal × 4.54609. So 10 imp gal is 45.4609 L.

### How many imperial gallons are in one liter?

One liter equals 0.21997 imperial gallons, which is the reverse of the conversion above.

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

UK gallon.

## Related pages

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