US Liquid Quarts to Imperial Gallons Converter
Convert US liquid quarts to Imperial gallons instantly with this free US liquid quarts to Imperial gallons converter. Enter any value to get an accurate volume conversion, plus the formula, the conversion factor and a full reference table.
What is 1 US liquid quart in Imperial gallons?
1 US liquid quart is equal to 0.208168546 Imperial gallons.
1 ÷ 4.8037997 = 0.208168546 Imperial gallons
1 US liquid quart = 0.2081685462 Imperial gallons
US liquid quarts to Imperial gallons formula
imp gal = qt ÷ 4.8037997
The US liquid quarts to Imperial gallons conversion factor is 0.208168546157, which is exact by definition. 1 US liquid quart = 0.208168546157 Imperial gallons, and 1 Imperial gallon = 4.80379970202 US liquid quarts.
Regional note. Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.
Worked examples
- 2 US liquid quarts = 0.416337092 Imperial gallons — 2 ÷ 4.8037997 = 0.416337092 Imperial gallons
- 6 US liquid quarts = 1.24901128 Imperial gallons — 6 ÷ 4.8037997 = 1.24901128 Imperial gallons
- 10 US liquid quarts = 2.08168546 Imperial gallons — 10 ÷ 4.8037997 = 2.08168546 Imperial gallons
US liquid quarts to Imperial gallons conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| US liquid quarts (qt) | Imperial gallons (imp gal) |
|---|---|
| 1 qt | 0.20816855 imp gal |
| 2 qt | 0.41633709 imp gal |
| 3 qt | 0.62450564 imp gal |
| 4 qt | 0.83267418 imp gal |
| 5 qt | 1.0408427 imp gal |
| 6 qt | 1.2490113 imp gal |
| 7 qt | 1.4571798 imp gal |
| 8 qt | 1.6653484 imp gal |
| 9 qt | 1.8735169 imp gal |
| 10 qt | 2.0816855 imp gal |
| 12 qt | 2.4980226 imp gal |
| 15 qt | 3.1225282 imp gal |
| 20 qt | 4.1633709 imp gal |
| 25 qt | 5.2042137 imp gal |
| 30 qt | 6.2450564 imp gal |
| 50 qt | 10.408427 imp gal |
| 75 qt | 15.612641 imp gal |
| 100 qt | 20.816855 imp gal |
| 500 qt | 104.08427 imp gal |
| 1,000 qt | 208.16855 imp gal |
When you need to convert US liquid quarts to Imperial gallons
- Scaling recipes between metric millilitres and US cups, pints or fluid ounces.
- Comparing fuel prices and tank capacities between countries.
- Working out paint, fertiliser or pool chemical quantities from instructions written for another market.
Getting a feel for the scale
A converted number is easier to trust when you can picture it. These reference points let you sanity-check the result at a glance.
Imperial gallon (imp gal)
- An Imperial gallon is about 1.2 US gallons
- UK fuel prices are quoted per litre, not per gallon
Common mistakes to avoid
- Dividing when you should multiply. Because 1 US liquid quart = 0.208169 Imperial gallons, the answer should be smaller than the number you started with.
- Mixing US and Imperial liquid measures. The Imperial gallon and pint are about 20% larger than their US counterparts, which is enough to ruin a recipe or misstate fuel economy.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
Cooking tolerates rounding to the nearest 5 mL or quarter cup. Dosing, chemistry and pool treatment do not — keep the full converted value there.
How these units are defined
- US liquid quart (qt): Two US pints, about 946 mL. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- Imperial gallon (imp gal): Exactly 4.54609 liters — the gallon used in the UK and historically in Canada. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Related conversions
- Imperial gallons to US liquid quarts
- US liquid quarts to Milliliters
- US liquid quarts to Liters
- US liquid quarts to Cubic meters
- US liquid quarts to Cubic feet
- US liquid quarts to US teaspoons
- US liquid quarts to US tablespoons
- US liquid quarts to US fluid ounces
- US liquid quarts to US cups
- US liquid quarts to US liquid pints
- US liquid quarts to US liquid gallons
- US liquid quarts to Imperial pints
Frequently asked questions
- What is 1 US liquid quart in Imperial gallons?
- 1 US liquid quart is equal to 0.208168546 Imperial gallons.
- How many US liquid quarts are in one Imperial gallon?
- There are 4.8037997 US liquid quarts in 1 Imperial gallon.
- How do you convert US liquid quarts to Imperial gallons?
- Multiply the number of US liquid quarts by 0.208168546 — or use the formula imp gal = qt ÷ 4.8037997.
- What is 6 US liquid quarts in Imperial gallons?
- 6 US liquid quarts is 1.24901128 Imperial gallons. 6 ÷ 4.8037997 = 1.24901128 Imperial gallons.
- Is the US liquid quarts to Imperial gallons conversion exact?
- Yes. The relationship is fixed by definition, so 0.208168546157 is an exact conversion factor — only the displayed result is rounded.
- Does this use US or Imperial Imperial gallons?
- Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.