Conversion formula

The conversion factor from feet to decimeters is 3.048, which means that 1 foot is equal to 3.048 decimeters:

1 ft = 3.048 dm

To convert 1680 feet into decimeters we have to multiply 1680 by the conversion factor in order to get the length amount from feet to decimeters. We can also form a simple proportion to calculate the result:

1 ft → 3.048 dm

1680 ft → L_(dm)

Solve the above proportion to obtain the length L in decimeters:

L_(dm) = 1680 ft × 3.048 dm

L_(dm) = 5120.64 dm

The final result is:

1680 ft → 5120.64 dm

We conclude that 1680 feet is equivalent to 5120.64 decimeters:

1680 feet = 5120.64 decimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 decimeter is equal to 0.00019528808898888 × 1680 feet.

Another way is saying that 1680 feet is equal to 1 ÷ 0.00019528808898888 decimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand six hundred eighty feet is approximately five thousand one hundred twenty point six four decimeters:

1680 ft ≅ 5120.64 dm

An alternative is also that one decimeter is approximately zero times one thousand six hundred eighty feet.

Conversion table

feet to decimeters chart

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