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 21 teaspoons into gallons we have to multiply 21 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

21 tsp → V_(gal)

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

V_(gal) = 21 tsp × 0.0013020833333325 gal

V_(gal) = 0.027343749999982 gal

The final result is:

21 tsp → 0.027343749999982 gal

We conclude that 21 teaspoons is equivalent to 0.027343749999982 gallons:

21 teaspoons = 0.027343749999982 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 36.571428571453 × 21 teaspoons.

Another way is saying that 21 teaspoons is equal to 1 ÷ 36.571428571453 gallons.

Approximate result

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

21 tsp ≅ 0.027 gal

An alternative is also that one gallon is approximately thirty-six point five seven one times twenty-one 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