One kilometre is about 3,280.84 feet. Aviation and mountaineering often mix the two: cruising altitude of 11 km is about 36,000 ft.
How to use the km to Feet Converter
- Type the number of kilometres into the Kilometres field. Decimals such as 0.5 are fine.
- Read the answer in Feet – it updates as you type, with no button to press.
- To convert the other way, type into Feet and the kilometres are recalculated.
- Press Copy results to copy both values with the page title, or Copy link to share this exact conversion.
This page converts only km ⇄ ft. Need a different unit? Use the general length converter, where you can choose any “from” and “to” unit.
How it works
Both units measure length, so they are always in the same ratio: one kilometre equals 3,280.8399 feet. The calculator multiplies the number of kilometres you type by 3,280.8399 to give feet, and when you type into the feet field it divides by the same factor to give kilometres. Because the ratio never changes, doubling the kilometres always doubles the feet. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).
How to convert kilometres to feet
- Write down the value in kilometres, for example 1 km.
- Multiply by the conversion factor 3,280.8399 (because 1 kilometre = 3,280.8399 ft).
- 1 × 3,280.8399 = 3,280.8399 ft.
- To go back from feet to kilometres, divide by 3,280.8399 – or multiply by 0.0003048.
km to ft conversion table
| Kilometres | Feet | Feet | Kilometres |
|---|---|---|---|
| 0.1 km | 328.08399 ft | 1 ft | 0.0003048 km |
| 0.5 km | 1,640.4199 ft | 2 ft | 0.0006096 km |
| 1 km | 3,280.8399 ft | 5 ft | 0.001524 km |
| 2 km | 6,561.6798 ft | 10 ft | 0.003048 km |
| 3 km | 9,842.5197 ft | 20 ft | 0.006096 km |
| 5 km | 16,404.199 ft | 50 ft | 0.01524 km |
| 8.849 km | 29,032.152 ft | 100 ft | 0.03048 km |
| 10 km | 32,808.399 ft | 1,000 ft | 0.3048 km |
| 11 km | 36,089.239 ft | ||
| 12 km | 39,370.079 ft |
What is a kilometre?
A kilometre is 1,000 metres. It is the standard unit for road distances, maps, running races and travel in almost every country except the U.S. and UK, where miles are still used on road signs.
What is a foot?
The international foot is exactly 0.3048 m and contains 12 inches. It remains the everyday unit for height, room dimensions and altitude in the U.S., and for aviation altitude worldwide.
Quick mental conversion
For a fast estimate, multiply kilometres by about 3,300 to get feet; the error is about 0.6%. Use the calculator above when you need the exact figure.
Common mistakes to avoid
Mixing the international foot (0.3048 m) with the old u.s. survey foot, confusing nautical and statute miles, and writing decimal feet such as 5.5 ft as “5 ft 5 in” (it is 5 ft 6 in).
Formula
1 km = 3,280.8399 ft1 ft = 0.0003048 kmft = km × 3,280.8399Worked example
Inputs — Kilometres: 1 km.
Results — Feet = 3,280.83989501 ft.
Frequently asked questions
How many feet in a kilometre?
About 3,280.84 ft.
How many feet is 8.849 km (Everest)?
About 29,032 ft.
How do I convert kilometres to feet?
Multiply the number of kilometres by 3,280.8399. For example, 1 km × 3,280.8399 = 3,280.8399 ft.
How do I convert feet back to kilometres?
Divide by 3,280.8399 (or multiply by 0.0003048), or simply type the value into the feet field above.
What is 10 km in feet?
10 km = 32,808.399 ft.
What is 5 km in feet?
5 km = 16,404.199 ft.
Is this conversion exact?
Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.
Can I convert to other units on this page?
This page converts only between kilometres and feet. To pick any length unit, use the general length converter linked under Related calculators.
What formula does the km to Feet Converter use?
1 km = 3,280.8399 ft.