Mendeleev
Science & measurement
Measurement system: US customary → Imperial

Convert US liquid quart (US qt) → Imperial gallon (imp gal)

1 US qt equals 0.208168546157 imp gal. The name of a customary unit matters: US liquid and Imperial units are not interchangeable.

Why the distinction matters

US liquid quart and Imperial gallon belong to measurement conventions that may look familiar but are not always equivalent across countries. Mendeleev.com therefore keeps the system name next to the abbreviation and calculates from defined conversion factors rather than rounded kitchen rules.

Example

1 US qt = 0.208168546157 imp gal · 10 US qt = 2.08168546157 imp gal.

0.208168546157 imp gal

Sources