Conversion formula

The conversion factor from feet to millimeters is 304.8, which means that 1 foot is equal to 304.8 millimeters:

1 ft = 304.8 mm

To convert 100 feet into millimeters we have to multiply 100 by the conversion factor in order to get the length amount from feet to millimeters. We can also form a simple proportion to calculate the result:

1 ft → 304.8 mm

100 ft → L_(mm)

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

L_(mm) = 100 ft × 304.8 mm

L_(mm) = 30480 mm

The final result is:

100 ft → 30480 mm

We conclude that 100 feet is equivalent to 30480 millimeters:

100 feet = 30480 millimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 3.2808398950131E-5 × 100 feet.

Another way is saying that 100 feet is equal to 1 ÷ 3.2808398950131E-5 millimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one hundred feet is approximately thirty thousand four hundred eighty millimeters:

100 ft ≅ 30480 mm

An alternative is also that one millimeter is approximately zero times one hundred feet.

Conversion table

feet to millimeters chart

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