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UK Gallons to US Tablespoons (imp gal to tbsp) Converter

1 UK gallon (imp gal) = 307.443 US tablespoons (tbsp). To convert UK gallons to US tablespoons, multiply by 307.443: 25 imp gal × 307.443 = 7,686.08 tbsp.

1 imp gal = 307.4431805394 tbsp
Convert the other way: US Tablespoons to UK Gallons

Quick facts

How to convert UK gallons to US tablespoons

  1. Take the value in UK gallons.
  2. Multiply it by 307.443 (the number of US tablespoons in one UK gallon).
  3. Round the result to the precision you need.
tbsp = imp gal × 307.443

Worked example: 25 imp gal × 307.443 = 7686.08 tbsp.

To convert US tablespoons back to UK gallons, multiply by 0.00325263, or divide by 307.443.

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

UK Gallons to US Tablespoons conversion table

UK Gallons to US Tablespoons conversion table
UK Gallons [imp gal]US Tablespoons [tbsp]
0.01 imp gal3.0744318054 tbsp
0.1 imp gal30.7443180539 tbsp
1 imp gal307.4431805394 tbsp
2 imp gal614.8863610788 tbsp
3 imp gal922.3295416182 tbsp
5 imp gal1537.215902697 tbsp
10 imp gal3074.431805394 tbsp
20 imp gal6148.8636107879 tbsp
50 imp gal15372.1590269698 tbsp
100 imp gal30744.3180539397 tbsp
1000 imp gal307443.180539397 tbsp

imp gal to tbsp chart from 1 to 100

US Tablespoons to UK Gallons conversion table

US Tablespoons to UK Gallons conversion table
US Tablespoons [tbsp]UK Gallons [imp gal]
0.01 tbsp0.0000325263 imp gal
0.1 tbsp0.0003252634 imp gal
1 tbsp0.0032526335 imp gal
2 tbsp0.0065052671 imp gal
3 tbsp0.0097579006 imp gal
5 tbsp0.0162631677 imp gal
10 tbsp0.0325263354 imp gal
20 tbsp0.0650526708 imp gal
50 tbsp0.1626316769 imp gal
100 tbsp0.3252633538 imp gal
1000 tbsp3.2526335378 imp gal

UK Gallons vs US Tablespoons

UK GallonUS Tablespoon
Symbolimp galtbsp
Equals1 imp gal = 307.443 tbsp1 tbsp = 0.00325263 imp gal

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.

What is a US tablespoon?

A US customary cooking measure equal to 3 teaspoons. Used in US recipes for moderate quantities of ingredients.

Frequently asked questions

How many US tablespoons are in a UK gallon?

There are 307.443 US tablespoons in 1 UK gallon (1 imp gal = 307.4431805394 tbsp).

How many UK gallons are in a US tablespoon?

There are 0.00325263 UK gallons in 1 US tablespoon (1 tbsp = 0.0032526335 imp gal).

How do I convert UK gallons to US tablespoons?

Multiply the number of UK gallons by 307.443. For example, 10 imp gal × 307.443 = 3,074.43 tbsp. To convert back, multiply by 0.00325263.

What is 10 imp gal in US tablespoons?

10 imp gal = 3,074.43 tbsp.

What is 100 imp gal in US tablespoons?

100 imp gal = 30,744.3 tbsp.

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.

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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