VOLUME CONVERSION
US quart to Imperial gallon.
Convert us quart (qt (US)) to imperial gallon (gal (UK)), with the math explained.
1 qt (US) = 0.2081685462 gal (UK)
US and UK gallons, pints, and fluid ounces are different sizes. A metric cup is 250 mL; a US customary cup is 236.5882365 mL.
THE MATH, MADE SIMPLE
How to convert us quart to imperial gallon
Multiply your us quart value by 0.208168546157 to get the equivalent in imperial gallon. Both units are normalized through the liter.
gal (UK) = qt (US) × 0.208168546210 qt (US) = 2.08168546157 gal (UK)
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.US and UK gallons, pints, and fluid ounces are different sizes. A metric cup is 250 mL; a US customary cup is 236.5882365 mL.
QUICK REFERENCE
qt (US) to gal (UK) conversion table
| US quart (qt (US)) | Imperial gallon (gal (UK)) |
|---|---|
| 1 qt (US) | 0.208168546157 gal (UK) |
| 2 qt (US) | 0.416337092314 gal (UK) |
| 5 qt (US) | 1.04084273079 gal (UK) |
| 10 qt (US) | 2.08168546157 gal (UK) |
| 20 qt (US) | 4.16337092314 gal (UK) |
| 50 qt (US) | 10.4084273079 gal (UK) |
| 100 qt (US) | 20.8168546157 gal (UK) |
| 500 qt (US) | 104.084273079 gal (UK) |
| 1,000 qt (US) | 208.168546157 gal (UK) |
About the us quart
The us quart (qt (US)) is a unit of volume. One us quart equals 0.946352946 liter (base unit) in this calculator.
All us quart conversionsAbout the imperial gallon
The imperial gallon (gal (UK)) is a unit of volume. One imperial gallon equals 4.54609 liter (base unit) in this calculator.
All imperial gallon conversionsCommon questions
What is 1 qt (US) in gal (UK)?
One us quart equals 0.208168546157 gal (UK). Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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