How to Convert Kilometres to Feet (km to ft)
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles. This guide shows how to convert kilometres into feet by hand, with examples and a quick-reference table.
The conversion
To convert kilometres to feet, multiply the value by 3,280.8398950131. To go the other way, divide by the same number (or multiply by 0.0003048). For a quick estimate, multiply by about 3,300.
Feet = kilometres × 3,280.8398950131
Worked examples
- 3 km = 9,842.52 ft
- 12.5 km = 41,010.5 ft
- 75 km = 246,062.99 ft
Kilometres to Feet table
| Kilometres | Feet |
|---|---|
| 1 km | 3,280.84 ft |
| 2 km | 6,561.68 ft |
| 5 km | 16,404.2 ft |
| 10 km | 32,808.4 ft |
| 20 km | 65,616.8 ft |
| 25 km | 82,021 ft |
| 50 km | 164,041.99 ft |
| 100 km | 328,083.99 ft |
| 250 km | 820,209.97 ft |
| 500 km | 1,640,419.95 ft |
| 1,000 km | 3,280,839.9 ft |
Common questions
Is km to ft exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Feet to Kilometres converter.
Mistakes to avoid
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Background
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
For any value, use the Kilometres to Feet Converter or browse all length converters.
Run your own numbers: Kilometres to Feet Converter