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

1 UK pint (imp pt) = 0.125 UK gallons (imp gal). To convert UK pints to UK gallons, multiply by 0.125: 25 imp pt × 0.125 = 3.125 imp gal.

1 imp pt = 0.125 imp gal
Convert the other way: UK Gallons to UK Pints

Quick facts

How to convert UK pints to UK gallons

  1. Start with your measurement in UK pints.
  2. Multiply it by 0.125 (the number of UK gallons in one UK pint).
  3. Round the result to the precision you need.
imp gal = imp pt × 0.125

Worked example: 25 imp pt × 0.125 = 3.125 imp gal.

To convert UK gallons back to UK pints, multiply by 8, or divide by 0.125.

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

UK Pints to UK Gallons conversion table

UK Pints to UK Gallons conversion table
UK Pints [imp pt]UK Gallons [imp gal]
0.01 imp pt0.00125 imp gal
0.1 imp pt0.0125 imp gal
1 imp pt0.125 imp gal
2 imp pt0.25 imp gal
3 imp pt0.375 imp gal
5 imp pt0.625 imp gal
10 imp pt1.25 imp gal
20 imp pt2.5 imp gal
50 imp pt6.25 imp gal
100 imp pt12.5 imp gal
1000 imp pt125 imp gal

imp pt to imp gal chart from 1 to 100

UK Gallons to UK Pints conversion table

UK Gallons to UK Pints conversion table
UK Gallons [imp gal]UK Pints [imp pt]
0.01 imp gal0.08 imp pt
0.1 imp gal0.8 imp pt
1 imp gal8 imp pt
2 imp gal16 imp pt
3 imp gal24 imp pt
5 imp gal40 imp pt
10 imp gal80 imp pt
20 imp gal160 imp pt
50 imp gal400 imp pt
100 imp gal800 imp pt
1000 imp gal8000 imp pt

UK Pints vs UK Gallons

UK PintUK Gallon
Symbolimp ptimp gal
Equals1 imp pt = 0.125 imp gal1 imp gal = 8 imp pt

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.

What is a UK gallon?

The imperial gallon, defined as exactly 4.54609 litres (UK Weights and Measures Act 1985); about 20% larger than the US gallon. Used in the UK and Canada for fuel economy (miles per gallon), garden and aquarium volumes, and older fuel prices.

Where You Will Meet UK Pints and UK Gallons

UK pints are used mainly in the UK (pub pints, fuel economy in mpg) and older Canadian recipes, while UK gallons are used mainly in the UK (pub pints, fuel economy in mpg) and older Canadian recipes. Converting between them changes the scale rather than the system, which is why the factor is a clean ratio.

How big is 1 imp pt compared with 1 imp gal?

1 imp pt is only 0.125 of 1 imp gal: you need 8 UK pints to make 1 imp gal, so the number gets smaller when you convert.

UK Pints to UK Gallons without a calculator

Real-world imp pt to imp gal examples

Everyday UK pints and UK gallons
ExampleUK PintsUK Gallons
A pint of beer in a UK pub1 imp pt0.125 imp gal
Two pints of milk2 imp pt0.25 imp gal
A half-pint0.5 imp pt0.0625 imp gal
One imperial gallon8 imp pt1 imp gal
A small aquarium80 imp pt10 imp gal
A garden water butt360 imp pt45 imp gal

How exact is the imp pt to imp gal factor?

The factor is exact by definition, so any error comes only from rounding. For everyday use, 3 significant figures are plenty; for engineering or invoices, keep 5 or more.

Mistakes to avoid

Background on UK pints and UK gallons

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

The imperial gallon was introduced in 1824 and is defined as exactly 4.54609 litres.

Keep converting

Next, you might want us pints to uk gallons, uk pints to us gallons, uk gallons to liters and uk gallons to us gallons. The full volume converter lists every unit.

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

Frequently asked questions

How many UK gallons are in a UK pint?

There are 0.125 UK gallons in 1 UK pint (1 imp pt = 0.125 imp gal).

How many UK pints are in a UK gallon?

There are 8 UK pints in 1 UK gallon (1 imp gal = 8 imp pt).

How do I convert UK pints to UK gallons?

Multiply the number of UK pints by 0.125. For example, 10 imp pt × 0.125 = 1.25 imp gal. To convert back, multiply by 8.

What is 10 imp pt in UK gallons?

10 imp pt = 1.25 imp gal.

What is 100 imp pt in UK gallons?

100 imp pt = 12.5 imp gal.

Is the imp pt to imp gal 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 UK pints to UK gallons?

Closer estimate: multiply by 0.13 (within 4%).

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

1 imp pt = 0.125 imp gal.

How many UK pints is a garden water butt (45 imp gal)?

45 imp gal = 360 imp pt.

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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