Gallon (US) to Quart (UK) Converter
Volume · unit-converter
Convert Gallon (US) to Quart (UK) 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: Gallon (US) (gal)
To: Quart (UK) (ukqt)
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.
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.
How to convert gallons (us) to quarts (uk)
1 gallon (us) is equal to 3.33069673499645 quart (uk):
1 gal = (3.78541178 L ÷ 1.1365225 L) ukqt = 3.33069673499645 ukqt
Each gallon (us) is defined as 3.78541178 L and each quart (uk) as 1.1365225 L, so one gal equals 3.78541178 ÷ 1.1365225 ukqt = 3.33069673499645 ukqt.
Let V(gal) be the numeric value of the same volume measured in Gallon (US) (gal), and V(ukqt) the value in Quart (UK) (ukqt). Then:
V(ukqt) = V(gal) × (3.78541178 / 1.1365225)
Equivalently, divide by how many gal fit into one ukqt (liters per ukqt divided by liters per gal):
V(ukqt) = V(gal) ÷ 0.30023748169347
Or: quart (uk) = gallon (us) ÷ 0.30023748169347
Examples
Example #1: Convert 20 gal to quart (uk)
20 gal = 20 gal × (3.78541178/1.1365225) ukqt = 66.6139346999 ukqt
20 gal = 20 gal ÷ 0.30023748169347 = 66.6139346999 ukqt
Example #2: Convert 50 gal to quart (uk)
50 gal = 50 gal × (3.78541178/1.1365225) ukqt = 166.53483675 ukqt
50 gal = 50 gal ÷ 0.30023748169347 = 166.53483675 ukqt
Summary
To convert Gallon (US) to Quart (UK), multiply the value in gal by the ratio of liters per gal divided by liters per ukqt. Equivalently: value_ukqt = value_gal × (3.78541178 / 1.1365225). Numerically, 1 gal equals 3.3306967349964474 ukqt.
Relationship context
You are converting between US customary fluid / volume (Gallons (US)) and UK imperial fluid / volume (Quarts (UK)). US and UK fluid measures differ (gallons, ounces, tablespoons); metric liters and cubic meters align with SI. The numeric factor used here is 3.330697e+0.
Conversion tables
| Gallon (US) (gal) | Quart (UK) (ukqt) |
|---|---|
| 0.1 | 0.3330696735 |
| 1 | 3.330696735 |
| 2 | 6.66139347 |
| 3 | 9.992090205 |
| 4 | 13.32278694 |
| 5 | 16.653483675 |
| 6 | 19.98418041 |
| 7 | 23.314877145 |
| 8 | 26.64557388 |
| 9 | 29.976270615 |
| Gallon (US) (gal) | Quart (UK) (ukqt) |
|---|---|
| 10 | 33.30696735 |
| 20 | 66.6139346999 |
| 30 | 99.9209020499 |
| 40 | 133.2278694 |
| 50 | 166.53483675 |
| 60 | 199.8418041 |
| 70 | 233.14877145 |
| 80 | 266.4557388 |
| 90 | 299.76270615 |
| 100 | 333.0696735 |