Mendeleev
Science & measurement
Measurement system: Imperial → US customary

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

1 imp qt equals 0.300237481376 US gal. The name of a customary unit matters: US liquid and Imperial units are not interchangeable.

Why the distinction matters

Imperial quart and US liquid 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 imp qt = 0.300237481376 US gal · 10 imp qt = 3.00237481376 US gal.

0.300237481376 US gal

Sources