Quart (UK) to Gallon (US) Converter
Volume · unit-converter
Convert Quart (UK) to Gallon (US) with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use liter-based factors (US fluid measures, imperial UK units, SI cubic meters).
Calculator
From: Quart (UK) (ukqt)
To: Gallon (US) (gal)
About Quart (UK)
The UK imperial quart is one quarter of an imperial gallon (about 1.1365 liters). It appears in UK cooking and beverage measures.
About Gallon (US)
The US liquid gallon is defined as 231 cubic inches (about 3.78541 liters). US recipes, fuel economy, and retail liquids typically use US gallons.
How to convert quarts (uk) to gallons (us)
1 quart (uk) is equal to 0.30023748169347 gallon (us):
1 ukqt = (1.1365225 L ÷ 3.78541178 L) gal = 0.30023748169347 gal
Each quart (uk) is defined as 1.1365225 L and each gallon (us) as 3.78541178 L, so one ukqt equals 1.1365225 ÷ 3.78541178 gal = 0.30023748169347 gal.
Let V(ukqt) be the numeric value of the same volume measured in Quart (UK) (ukqt), and V(gal) the value in Gallon (US) (gal). Then:
V(gal) = V(ukqt) × (1.1365225 / 3.78541178)
Equivalently, divide by how many ukqt fit into one gal (liters per gal divided by liters per ukqt):
V(gal) = V(ukqt) ÷ 3.33069673499645
Or: gallon (us) = quart (uk) ÷ 3.33069673499645
Examples
Example #1: Convert 20 ukqt to gallon (us)
20 ukqt = 20 ukqt × (1.1365225/3.78541178) gal = 6.0047496339 gal
20 ukqt = 20 ukqt ÷ 3.33069673499645 = 6.0047496339 gal
Example #2: Convert 50 ukqt to gallon (us)
50 ukqt = 50 ukqt × (1.1365225/3.78541178) gal = 15.0118740847 gal
50 ukqt = 50 ukqt ÷ 3.33069673499645 = 15.0118740847 gal
Summary
To convert Quart (UK) to Gallon (US), multiply the value in ukqt by the ratio of liters per ukqt divided by liters per gal. Equivalently: value_gal = value_ukqt × (1.1365225 / 3.78541178). Numerically, 1 ukqt equals 0.30023748169347114 gal.
Relationship context
You are converting between UK imperial fluid / volume (Quarts (UK)) and US customary fluid / volume (Gallons (US)). US and UK fluid measures differ (gallons, ounces, tablespoons); metric liters and cubic meters align with SI. The numeric factor used here is 3.002375e-1.
Conversion tables
| Quart (UK) (ukqt) | Gallon (US) (gal) |
|---|---|
| 0.1 | 0.0300237482 |
| 1 | 0.3002374817 |
| 2 | 0.6004749634 |
| 3 | 0.9007124451 |
| 4 | 1.2009499268 |
| 5 | 1.5011874085 |
| 6 | 1.8014248902 |
| 7 | 2.1016623718 |
| 8 | 2.4018998535 |
| 9 | 2.7021373352 |
| Quart (UK) (ukqt) | Gallon (US) (gal) |
|---|---|
| 10 | 3.0023748169 |
| 20 | 6.0047496339 |
| 30 | 9.0071244508 |
| 40 | 12.0094992677 |
| 50 | 15.0118740847 |
| 60 | 18.0142489016 |
| 70 | 21.0166237185 |
| 80 | 24.0189985355 |
| 90 | 27.0213733524 |
| 100 | 30.0237481693 |