Measurement system: Imperial → US customary

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

1 imp gal equals 4.80379970202 US qt. The name of a customary unit matters: US liquid and Imperial units are not interchangeable.

Why the distinction matters

Imperial gallon and US liquid quart 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 gal = 4.80379970202 US qt · 10 imp gal = 48.0379970202 US qt.

Imperial gallon

4.80379970202 US qt

How to use this conversion

The conversion keeps the physical quantity unchanged; only the unit used to express it changes. Apply the relation below, keep the unit with the number, and round only at the end.

1 imp gal = 4.80379970202 US qt · 10 imp gal = 48.0379970202 US qt.