---
title: "US quarts to Imperial gallons — qt to imp gal converter"
description: "1 US quart = 0.20817 imperial gallons. Convert US quarts to imperial gallons with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/quarts-to-imperial-gallons/
site: "At One Place"
---

# US quarts to imperial gallons

**1 US quart in imperial gallons: 1 qt = 0.20817 imp gal**

imp gal = qt × 0.2081685462

To convert US quarts to imperial gallons, multiply by 0.2081685462. The table below gives the values people look up most often, and the converter works for any number.

## US quarts to imperial gallons table

*Common US quart values converted to imperial gallons.*

| US quarts | Imperial gallons |
| --- | --- |
| 1 qt | 0.20817 |
| 2 qt | 0.41634 |
| 3 qt | 0.62451 |
| 4 qt | 0.83267 |
| 5 qt | 1.040843 |
| 10 qt | 2.081685 |
| 15 qt | 3.122528 |
| 20 qt | 4.163371 |
| 25 qt | 5.204214 |
| 30 qt | 6.245056 |
| 40 qt | 8.326742 |
| 50 qt | 10.40843 |
| 75 qt | 15.61264 |
| 100 qt | 20.81685 |
| 250 qt | 52.04214 |
| 500 qt | 104.0843 |
| 1,000 qt | 208.1685 |

## How the conversion works

The relationship is imp gal = qt × 0.2081685462. Both units measure volume, so the conversion is a fixed factor that never changes.

> Imperial gallon: UK gallon.

## Common questions

### How many imperial gallons are in one US quart?

One US quart equals 0.20817 imperial gallons. imp gal = qt × 0.2081685462.

### How do you convert US quarts to imperial gallons?

Use imp gal = qt × 0.2081685462. So 10 qt is 2.081685 imp gal.

### How many US quarts are in one imperial gallon?

One imperial gallon equals 4.8038 US quarts, which is the reverse of the conversion above.

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

UK gallon.

## Related pages

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