To convert imperial gallons to us gallons, multiply by 1.200949926.
The calculation uses 1 gal = 1.200949926 gal. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in gal = value in gal × 1.200949926
gal- Input unit: imperial gallons
gal- Output unit: us gallons
How to use this calculator
- Enter a value in gal.
- Multiply by the stored conversion factor.
- Read the result in gal; divide by the same factor to convert back.
Worked examples
Worked conversion
1 gal × 1.200949926 ≈ 1.200949926 gal.
Reverse conversion
1.200949926 gal ÷ 1.200949926 ≈ 1 gal. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 1.200949926 gal per gal.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
gal to gal table
| gal | gal (rounded) |
|---|---|
| 0 | 0 |
| 1 | 1.200949926 |
| 2 | 2.401899851 |
| 5 | 6.004749628 |
| 10 | 12.00949926 |
| 100 | 120.0949926 |
Related calculators
Us Gallons to Imperial Gallons ConverterTo convert us gallons to imperial gallons, multiply by 0.8326741846.Imperial Gallons to Us Quarts ConverterTo convert imperial gallons to quarts, multiply by 4.803799702.Imperial Gallons to Cubic Centimeters ConverterTo convert imperial gallons to cubic centimeters, multiply by 4546.09.Imperial Gallons to Us Pints ConverterTo convert imperial gallons to pints, multiply by 9.607599404.Imperial Gallons to Cubic Meters ConverterTo convert imperial gallons to cubic meters, multiply by 0.00454609.Us Tons to Long Tons ConverterTo convert us tons to uk tons, multiply by 0.8928571429.