Conversion formula

The conversion factor from teaspoons to gallons is 0.0013020833333325, which means that 1 teaspoon is equal to 0.0013020833333325 gallons:

1 tsp = 0.0013020833333325 gal

To convert 18 teaspoons into gallons we have to multiply 18 by the conversion factor in order to get the volume amount from teaspoons to gallons. We can also form a simple proportion to calculate the result:

1 tsp → 0.0013020833333325 gal

18 tsp → V_(gal)

Solve the above proportion to obtain the volume V in gallons:

V_(gal) = 18 tsp × 0.0013020833333325 gal

V_(gal) = 0.023437499999984 gal

The final result is:

18 tsp → 0.023437499999984 gal

We conclude that 18 teaspoons is equivalent to 0.023437499999984 gallons:

18 teaspoons = 0.023437499999984 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 42.666666666696 × 18 teaspoons.

Another way is saying that 18 teaspoons is equal to 1 ÷ 42.666666666696 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen teaspoons is approximately zero point zero two three gallons:

18 tsp ≅ 0.023 gal

An alternative is also that one gallon is approximately forty-two point six six seven times eighteen teaspoons.

Conversion table

teaspoons to gallons chart

For quick reference purposes, below is the conversion table you can use to convert from teaspoons to gallons