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Convert feet to km

Convert feet to km instantly. 1 ft = 0.0003048 km. Formula, worked examples and a quick reference table.

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ft
km

One foot equals 0.0003048 kilometers. To convert any number of feet to kilometers, multiply by 0.0003048.

The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.

Length conversions come up wherever a measurement crosses a border: a height given in feet and inches on a form that wants centimetres, a running distance recorded in kilometres and compared against miles, a component specified in millimetres and ordered from a supplier working in inches. The conversions themselves are exact — the inch, foot, yard and mile have all been defined in metric terms since 1959 — so any discrepancy comes from rounding, not from the units disagreeing.

feet to km formula

kilometer = foot × 0.0003048

To go the other way, use foot = kilometer ÷ 0.0003048.

About these units

A foot is exactly 12 inches, or 0.3048 metres. It survives in aviation altitudes worldwide, even in otherwise fully metric countries.

The kilometre is a thousand metres, and the standard road-distance unit in every country except the United States, the United Kingdom and a handful of others.

Foot is also written feet. Kilometer is also written kilometre, kilometres, kilometers and kms.

Sources

  1. National Bureau of Standards, "Refinement of Values for the Yard and the Pound", Federal Register, 1 July 1959 — the international yard as exactly 0.9144 m and the avoirdupois pound as exactly 0.45359237 kg.

feet to km conversion table

Foot Kilometer
1 ft 0.0003048 km
2 ft 0.0006096 km
3 ft 0.0009144 km
5 ft 0.001524 km
10 ft 0.003048 km
20 ft 0.006096 km
25 ft 0.00762 km
50 ft 0.01524 km
100 ft 0.03048 km
250 ft 0.0762 km
500 ft 0.1524 km
1,000 ft 0.3048 km

Frequently asked questions

How many kilometers are in a foot? +

There are 0.0003048 kilometers in one foot.

What is 10 ft in km? +

10 ft equals 0.003048 km. Multiply 10 by 0.0003048.

How do I convert kilometer back to foot? +

Use foot = kilometer ÷ 0.0003048. The converter above handles both directions, or see our dedicated km to feet page.

How accurate is this foot to kilometer conversion? +

The factor used is 0.0003048, carried at full double precision. Where a unit has an exact legal definition the factor is exact rather than approximate. Rounding is applied only to the displayed result, so the answer is never a calculation done on an already-rounded number.

Is there a quick way to estimate ft to km in my head? +

Divide by 3,280. That reproduces the exact factor of 0.0003048 to the precision you could read off a result anyway.