At One Place

US gallons to teaspoons

1 US gallon in teaspoons
1 gal = 768 tsp
tsp = gal × 768

To convert US gallons to teaspoons, multiply by 768. The table below gives the values people look up most often, and the converter works for any number.

US gallons to teaspoons table

Common US gallon values converted to teaspoons.
US gallons Teaspoons
1 gal 768
2 gal 1,536
3 gal 2,304
4 gal 3,072
5 gal 3,840
10 gal 7,680
15 gal 11,520
20 gal 15,360
25 gal 19,200
30 gal 23,040
40 gal 30,720
50 gal 38,400
75 gal 57,600
100 gal 76,800
250 gal 192,000
500 gal 384,000
1,000 gal 768,000

How the conversion works

The relationship is tsp = gal × 768. 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 teaspoons are in one US gallon?
One US gallon equals 768 teaspoons. tsp = gal × 768.
How do you convert US gallons to teaspoons?
Use tsp = gal × 768. So 10 gal is 7,680 tsp.
How many US gallons are in one teaspoon?
One teaspoon equals 0.0013021 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