At One Place

Tablespoons to US gallons

1 tablespoon in US gallons
1 tbsp = 0.0039063 gal
gal = tbsp × 0.00390625

To convert tablespoons to US gallons, multiply by 0.00390625. The table below gives the values people look up most often, and the converter works for any number.

Tablespoons to US gallons table

Common tablespoon values converted to US gallons.
Tablespoons US gallons
1 tbsp 0.0039063
2 tbsp 0.0078125
3 tbsp 0.011719
4 tbsp 0.015625
5 tbsp 0.019531
10 tbsp 0.039063
15 tbsp 0.058594
20 tbsp 0.078125
25 tbsp 0.097656
30 tbsp 0.11719
40 tbsp 0.15625
50 tbsp 0.19531
75 tbsp 0.29297
100 tbsp 0.39063
250 tbsp 0.97656
500 tbsp 1.953125
1,000 tbsp 3.90625

How the conversion works

The relationship is gal = tbsp × 0.00390625. 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 US gallons are in one tablespoon?
One tablespoon equals 0.0039063 US gallons. gal = tbsp × 0.00390625.
How do you convert tablespoons to US gallons?
Use gal = tbsp × 0.00390625. So 10 tbsp is 0.039063 gal.
How many tablespoons are in one US gallon?
One US gallon equals 256 tablespoons, 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