Sumwise

US quarts to imperial gallons

imperial gallons = US quarts × 0.20816855

Reverse: imperial gallons to US quarts

How to convert US quarts to imperial gallons

One US quart is 0.20816855 imperial gallons, so multiply the number of US quarts by 0.20816855. For example, 20 US quarts is 20 × 0.20816855 = 4.163371 imperial gallons. To go back, divide by the same number, or multiply by 4.8038.

Quick estimate

Multiplying by about 0.2 gets within 3.9% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.

US quartsimperial gallons
1 qt0.20816855 impgal
2 qt0.41633709 impgal
3 qt0.62450564 impgal
4 qt0.83267418 impgal
5 qt1.040843 impgal
6 qt1.249011 impgal
7 qt1.45718 impgal
8 qt1.665348 impgal
9 qt1.873517 impgal
10 qt2.081685 impgal
11 qt2.289854 impgal
12 qt2.498023 impgal
13 qt2.706191 impgal
14 qt2.91436 impgal
15 qt3.122528 impgal
16 qt3.330697 impgal
17 qt3.538865 impgal
18 qt3.747034 impgal
19 qt3.955202 impgal
20 qt4.163371 impgal
25 qt5.204214 impgal
30 qt6.245056 impgal
40 qt8.326742 impgal
50 qt10.408427 impgal
60 qt12.490113 impgal
70 qt14.571798 impgal
75 qt15.612641 impgal
80 qt16.653484 impgal
90 qt18.735169 impgal
100 qt20.816855 impgal
120 qt24.980226 impgal
150 qt31.225282 impgal
200 qt41.633709 impgal
250 qt52.042137 impgal
300 qt62.450564 impgal
400 qt83.267418 impgal
500 qt104.084273 impgal
750 qt156.12641 impgal
1,000 qt208.168546 impgal
1,500 qt312.252819 impgal
2,000 qt416.337092 impgal
5,000 qt1,040.84 impgal
10,000 qt2,081.69 impgal

Questions

How many imperial gallons are in a US quart?

0.20816855 imperial gallons.

How do I convert US quarts to imperial gallons in a spreadsheet?

Put the value in A1 and type =A1*0.20816855, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.