Feet (ft) to Kilometers (km) Converter

How many feet (ft) are in 1 kilometer (km)? What is the formula for how to convert feet to kilometers (ft to km)?

1 foot (ft) = 0.0003048 kilometer (km)
So we can say that there is 0.0003048 kilometer in 1 foot.
This means that the multiplication conversion factor to convert a quantity expressed in a foot unit of measurement to an equivalent quantity expressed in a kilometer unit of measurement is 0.0003048.

Inversely (or reciprocally),

1 kilometer (km) = 3,280.8398950131 feet (ft)
So we can say that there is 3,280.8398950131 feet in 1 kilometer.
This means that the division conversion factor to convert a quantity expressed in a foot unit of measurement to an equivalent quantity expressed in a kilometer unit of measurement is 3,280.8398950131.

Knowing this inverse mathematical relationship between the two conversion factors and their reciprocal operations, we can derive two formulas to calculate and convert a quantity of length expressed in feet to an equivalent quantity of length expressed in kilometers (ft to km). Both formulas will yield the same result. The formulas are:

km = ft × 0.0003048    → This is the formula based on the multiplication conversion factor.

and

km = ft ÷ 3,280.8398950131    → This is the formula based on the division conversion factor.

For example, if you have a length of 150 feet that you want to convert to kilometers, you would use either of the two formulas as follows:

km = 150 ft × 0.0003048 = 0.04572 km

km = 150 ft ÷ 3,280.8398950131 = 0.04572 km

So, the result is the same using either formula, which is 0.04572 kilometer.

Feet to kilometers (ft to km) conversion chart

To save you time and effort spent on having to perform manual calculations or look up conversion formulas every time a conversion from feet to kilometers is needed, here is a feet-to-kilometers conversion chart for your quick and easy reference. This conversion chart (or conversion table) shows common measurement values of length in feet and their equivalent measurement values in kilometers. These equivalent measurement values may be rounded off to 1 or 2 decimal places when it is mathematically expedient for everyday applications.

Conversion factor of 1 foot to other units of length

Here is a reference list providing a conversion of 1 foot (ft) to its equivalent values in various units of length, both metric and imperial:

What is a foot (ft)?

Definition of foot: A foot is an imperial and US customary unit of length equivalent to 12 inches or 0.3048 meters. It is commonly used in the United States and the United Kingdom for measuring height, furniture dimensions and some sports distances.

The abbreviation for foot is ft.

The informal symbol for foot is represented by a single prime (′) or single quote (‘). For example, 6 feet can be written as 6′.

What is a kilometer (km)?

Definition of kilometer: A kilometer is a unit of length in the International System of Units (SI), commonly known as the metric system, equal to one thousand meters (10^3 m). It is commonly used for longer distances, such as races, road distances and geographical features.

The abbreviation for kilometer is km. The single Unicode character ㎞ (U+339E) represents the 2-character Latin abbreviation for kilometer. The Windows Alt code for this character ㎞ is Alt + 13214.