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Convert Imperial Gallon to US Gallon

This imperial gallon to US gallon conversion tool helps you convert imperial gallons to US gallons instantly. It's fast, reliable, and user-friendly, perfect for international measurements, fuel calculations, or educational use.

How to Convert Imperial gallon to Us gallon

To convert imperial gallons to US gallons, multiply the number of imperial gallons by 1.20095, as one imperial gallon equals approximately 1.20095 US gallons.

Conversion Formula:

value * 1.20095

Understanding the Conversion

Converting imperial gallon to us gallon requires multiplying by 1.20095. This conversion factor comes from the standard relationship between these volume units in our measurement system.

You'll find this conversion useful in many practical scenarios. From calculations to measurements, being able to convert imperial gallon to us gallon gives you flexibility in how you express and work with volume. The conversion is always the same: multiply by 1.20095.

Conversion Examples

Example: Convert 3 imperial gallon to us gallon

  1. Step 1: Identify the conversion factor. Since 1 imperial gallon = 1.20095 us gallon, the conversion factor is 1.20095.
  2. Step 2: Multiply 3 imperial gallon by 1.20095.
  3. Step 3: 3 × 1.20095 = 3.60285 us gallon

3 imperial gallon = 3.60285 us gallon

This shows the basic conversion process using a whole number.

Example: Convert 10 imperial gallon to us gallon

  1. Step 1: Conversion factor: 1 imperial gallon = 1.20095 us gallon.
  2. Step 2: 10 imperial gallon × 1.20095
  3. Step 3: Result = 12.0095 us gallon

10 imperial gallon = 12.0095 us gallon

This demonstrates the conversion with a larger value.

Conversion Formula

The formula to convert imperial gallon to us gallon is:

imperial gallon × 1.20095 = us gallon

Mathematically, you can write this as:


imperial gallon × 1.20095 us gallon/imperial gallon = us gallon

The imperial gallon units cancel out, leaving you with us gallon.

Conversion Chart

Imperial gallonUs gallon
11
22
34
45
56
67
78
810
911
1012
1518
2024
3036
6072
100120

Quick Conversion Tip

Quick conversion: Multiply imperial gallon by 1.20095 to get us gallon. For example, 1 imperial gallon = 1.20095 us gallon, 2 imperial gallon = 2.4019 us gallon, 5 imperial gallon = 6.00475 us gallon.

Unit Definitions

Imperial Gallon (imp gal)

An imperial gallon is a UK unit of volume historically used for fuel and beverages, larger than the US gallon.

1 imperial gallon = 4.54609 liters ≈ 1.20095 US gallons = 160 imperial fluid ounces

US Gallon (gal)

A US gallon is the standard gallon used in the United States for liquids such as gasoline, milk, and water.

1 US gallon = 3.78541 liters = 231 cubic inches = 16 US cups

Common Use Cases

  • Project planning: Use imperial gallon to us gallon conversion for detailed volume calculations and planning
  • Education: Transform imperial gallon to us gallon for volume calculations in studies and assignments
  • Manufacturing: Convert imperial gallon to us gallon for volume specifications in production processes
  • Business: Convert imperial gallon to us gallon for volume calculations in business and commerce
  • Calculations: Convert imperial gallon to us gallon when working with volume measurements in different units
  • Engineering: Convert imperial gallon to us gallon when working on projects with specific volume requirements
  • Measurements: Convert imperial gallon to us gallon to express volume values in more convenient units