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 646 teaspoons into gallons we have to multiply 646 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

646 tsp → V_(gal)

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

V_(gal) = 646 tsp × 0.0013020833333325 gal

V_(gal) = 0.84114583333276 gal

The final result is:

646 tsp → 0.84114583333276 gal

We conclude that 646 teaspoons is equivalent to 0.84114583333276 gallons:

646 teaspoons = 0.84114583333276 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 1.1888544891649 × 646 teaspoons.

Another way is saying that 646 teaspoons is equal to 1 ÷ 1.1888544891649 gallons.

Approximate result

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

646 tsp ≅ 0.841 gal

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