At One Place

US gallons to tablespoons

1 US gallon in tablespoons
1 gal = 256 tbsp
tbsp = gal × 256

To convert US gallons to tablespoons, multiply by 256. The table below gives the values people look up most often, and the converter works for any number.

US gallons to tablespoons table

Common US gallon values converted to tablespoons.
US gallons Tablespoons
1 gal 256
2 gal 512
3 gal 768
4 gal 1,024
5 gal 1,280
10 gal 2,560
15 gal 3,840
20 gal 5,120
25 gal 6,400
30 gal 7,680
40 gal 10,240
50 gal 12,800
75 gal 19,200
100 gal 25,600
250 gal 64,000
500 gal 128,000
1,000 gal 256,000

How the conversion works

The relationship is tbsp = gal × 256. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

US gallon: US liquid gallon. The imperial gallon is about 20% larger.

Common questions

How many tablespoons are in one US gallon?
One US gallon equals 256 tablespoons. tbsp = gal × 256.
How do you convert US gallons to tablespoons?
Use tbsp = gal × 256. So 10 gal is 2,560 tbsp.
How many US gallons are in one tablespoon?
One tablespoon equals 0.0039063 US gallons, which is the reverse of the conversion above.
Is there more than one kind of US gallon?
US liquid gallon. The imperial gallon is about 20% larger.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked