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Unit Converter

Conversion formula

The conversion factor from cubic inches to gallons is 0.0043290043290138, which means that 1 cubic inch is equal to 0.0043290043290138 gallons:

1 in3 = 0.0043290043290138 gal

To convert 690 cubic inches into gallons we have to multiply 690 by the conversion factor in order to get the volume amount from cubic inches to gallons. We can also form a simple proportion to calculate the result:

1 in3 → 0.0043290043290138 gal

690 in3 → V(gal)

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

V(gal) = 690 in3 × 0.0043290043290138 gal

V(gal) = 2.9870129870195 gal

The final result is:

690 in3 → 2.9870129870195 gal

We conclude that 690 cubic inches is equivalent to 2.9870129870195 gallons:

690 cubic inches = 2.9870129870195 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.33478260869492 × 690 cubic inches.

Another way is saying that 690 cubic inches is equal to 1 ÷ 0.33478260869492 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred ninety cubic inches is approximately two point nine eight seven gallons:

690 in3 ≅ 2.987 gal

An alternative is also that one gallon is approximately zero point three three five times six hundred ninety cubic inches.

Conversion table

cubic inches to gallons chart

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

cubic inches (in3) gallons (gal)
691 cubic inches 2.991 gallons
692 cubic inches 2.996 gallons
693 cubic inches 3 gallons
694 cubic inches 3.004 gallons
695 cubic inches 3.009 gallons
696 cubic inches 3.013 gallons
697 cubic inches 3.017 gallons
698 cubic inches 3.022 gallons
699 cubic inches 3.026 gallons
700 cubic inches 3.03 gallons