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US Gallons to UK Pints (gal to imp pt) Converter

1 US gallon (gal) = 6.66139 UK pints (imp pt). To convert US gallons to UK pints, multiply by 6.66139: 15 gal × 6.66139 = 99.9209 imp pt.

1 gal = 6.661393477 imp pt
Convert the other way: UK Pints to US Gallons

Quick facts

How to convert US gallons to UK pints

  1. Start with your measurement in US gallons.
  2. Multiply it by 6.66139 (the number of UK pints in one US gallon).
  3. Check the answer: it should be larger than the number you started with.
imp pt = gal × 6.66139

Worked example (a car fuel tank): 15 gal × 6.66139 = 99.9209 imp pt.

To convert UK pints back to US gallons, multiply by 0.150119, or divide by 6.66139.

Source: NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units).

US Gallons to UK Pints conversion table

US Gallons to UK Pints conversion table
US Gallons [gal]UK Pints [imp pt]
0.01 gal0.0666139348 imp pt
0.1 gal0.6661393477 imp pt
1 gal6.661393477 imp pt
2 gal13.3227869541 imp pt
3 gal19.9841804311 imp pt
5 gal33.3069673852 imp pt
10 gal66.6139347703 imp pt
20 gal133.2278695406 imp pt
50 gal333.0696738516 imp pt
100 gal666.1393477032 imp pt
1000 gal6661.3934770319 imp pt

gal to imp pt chart from 1 to 100

UK Pints to US Gallons conversion table

UK Pints to US Gallons conversion table
UK Pints [imp pt]US Gallons [gal]
0.01 imp pt0.0015011874 gal
0.1 imp pt0.0150118741 gal
1 imp pt0.1501187407 gal
2 imp pt0.3002374814 gal
3 imp pt0.4503562221 gal
5 imp pt0.7505937034 gal
10 imp pt1.5011874069 gal
20 imp pt3.0023748138 gal
50 imp pt7.5059370344 gal
100 imp pt15.0118740688 gal
1000 imp pt150.1187406881 gal

US Gallons vs UK Pints

US GallonUK Pint
Symbolgalimp pt
Equals1 gal = 6.66139 imp pt1 imp pt = 0.150119 gal

What is a US gallon?

A US customary unit equal to 4 quarts. Used in the US for fuel, milk, and paint.

What is a UK pint?

A UK imperial unit equal to 20 imperial fluid ounces (exactly 568.26125 ml). The legal measure for draught beer and cider in UK pubs and for doorstep milk.

Where You Will Meet US Gallons and UK Pints

US gallons are used mainly in the United States, while UK pints are used mainly in the UK (pub pints, fuel economy in mpg) and older Canadian recipes. This conversion bridges the US customary and metric systems, so it comes up whenever a figure crosses the US border with Canada or the Atlantic with the UK: product specifications, travel, recipes, school work and trade.

How big is 1 gal compared with 1 imp pt?

1 gal is 6.66139 times the size of 1 imp pt, so the number gets bigger when you convert US gallons to UK pints.

US Gallons to UK Pints without a calculator

Real-world gal to imp pt examples

Everyday US gallons and UK pints
ExampleUS GallonsUK Pints
A car fuel tank15 gal99.9209 imp pt
A gallon of milk1 gal6.66139 imp pt
A hot-water heater50 gal333.07 imp pt
A pint of beer in a UK pub0.150119 gal1 imp pt
Two pints of milk0.300237 gal2 imp pt
A half-pint0.0750594 gal0.5 imp pt

How exact is the gal to imp pt factor?

The factor is exact by definition, so any error comes only from rounding. Keep at least 4 significant figures for school work, and the full factor for anything legal or commercial.

Mistakes to avoid

Background on US gallons and UK pints

The US gallon is the old English wine gallon of exactly 231 cubic inches.

The imperial pint (20 fl oz) is about 20% larger than the US pint (16 fl oz).

Keep converting

People who convert us gallons to uk pints often need uk gallons to uk pints, us gallons to us pints, uk pints to milliliters and uk pints to liters. The full volume converter lists every unit.

On pakmath.com, the scientific calculator is a useful next step, as is the percentage calculator; for related everyday maths, try the gas mileage calculator on Adzita.

Frequently asked questions

How many UK pints are in a US gallon?

There are 6.66139 UK pints in 1 US gallon (1 gal = 6.661393477 imp pt).

How many US gallons are in a UK pint?

There are 0.150119 US gallons in 1 UK pint (1 imp pt = 0.1501187407 gal).

How do I convert US gallons to UK pints?

Multiply the number of US gallons by 6.66139. For example, 10 gal × 6.66139 = 66.6139 imp pt. To convert back, multiply by 0.150119.

What is 10 gal in UK pints?

10 gal = 66.6139 imp pt.

What is 100 gal in UK pints?

100 gal = 666.139 imp pt.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units)). Results are shown to up to 10 decimal places; round them to suit your purpose.

What is an easy way to convert US gallons to UK pints?

In your head: multiply by 7 (about 5.1% off). 1 gal × 7 ≈ 7 imp pt.

How many UK pints is 15 gal (a car fuel tank)?

15 gal = 99.9209 imp pt.

How many US gallons is a pint of beer in a UK pub (1 imp pt)?

1 imp pt = 0.150119 gal.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026