tier_1 conversion

Convert gallon (UK) to gallon (US)

Convert gallon (UK) to gallon (US) with a verified formula, worked example, conversion table, precision guidance, and reverse conversion.

gallon (UK) to gallon (US)

gallon (US)—

Quick answer

1 gallon (UK) = 1.2009499255 gallon (US).

Formula

gallon (US) = gallon (UK) × 1.200949925504568153461085912

Precision

The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.

How to convert gallon (UK) to gallon (US)

Enter a value in gallon (UK).
Use the scale factor 1.200949925504568153461085912: gallon (US) equals gallon (UK) multiplied by this factor.
Round the displayed gallon (US) value only when needed.

About these units

gallon (UK) is a unit used in volume conversions. Volume measures three-dimensional space or liquid capacity. Its recorded symbol is gal (UK). gallon (US) is a unit used in volume conversions. Volume measures three-dimensional space or liquid capacity. Its recorded symbol is gal (US).

Explore related conversions

gallon (UK) to gallon (US) conversion table

gallon (UK)	gallon (US)
0 gallon (UK)	0e-27 gallon (US)
1 gallon (UK)	1.20094992550 gallon (US)
5 gallon (UK)	6.00474962752 gallon (US)
10 gallon (UK)	12.0094992550 gallon (US)
25 gallon (UK)	30.0237481376 gallon (US)
100 gallon (UK)	120.094992550 gallon (US)

Frequently asked questions

How do I convert from gallon (UK) to gallon (US)?

Use the scale factor 1.200949925504568153461085912: gallon (US) equals gallon (UK) multiplied by this factor.

What formula does CalculatorHQ use for gallon (UK) to gallon (US)?

gallon (US) = gallon (UK) × 1.200949925504568153461085912

How should I round the result?

The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.

Can I convert gallon (US) back to gallon (UK)?

Yes. Use the linked reverse conversion, whose formula is validated against this pair with round-trip tests.