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 642 teaspoons into gallons we have to multiply 642 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

642 tsp → V_(gal)

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

V_(gal) = 642 tsp × 0.0013020833333325 gal

V_(gal) = 0.83593749999943 gal

The final result is:

642 tsp → 0.83593749999943 gal

We conclude that 642 teaspoons is equivalent to 0.83593749999943 gallons:

642 teaspoons = 0.83593749999943 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 1.1962616822438 × 642 teaspoons.

Another way is saying that 642 teaspoons is equal to 1 ÷ 1.1962616822438 gallons.

Approximate result

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

642 tsp ≅ 0.836 gal

An alternative is also that one gallon is approximately one point one nine six times six hundred forty-two 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