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Distance Conversion Calculator.
Converts a distance value between kilometers, miles, meters, and feet.
Your inputs
How it works
- 1
Enter the numeric distance value.
- 2
Select the unit you are converting from.
- 3
Select the unit you want to convert to.
- 4
The calculator applies the conversion factor and displays the result.
value * (from_unit == 'km' ? 1 : from_unit == 'miles' ? 1.609344 : from_unit == 'meters' ? 0.001 : 0.0003048) / (to_unit == 'km' ? 1 : to_unit == 'miles' ? 1.609344 : to_unit == 'meters' ? 0.001 : 0.0003048)Frequently asked questions
How many kilometers are in a mile?
One mile is exactly 1.609344 kilometers.
How many feet are in a meter?
One meter is approximately 3.28084 feet.
Can I convert between any of these units?
Yes, the calculator supports conversions among kilometers, miles, meters, and feet.
Explore this calculator category
Results
Formula checkedConverted distance
0to_unit
Estimate for general guidance only — verify important decisions with an appropriate professional.
How it works
Converts a distance value between kilometers, miles, meters, and feet.
- Enter the numeric distance value.
- Select the unit you are converting from.
- Select the unit you want to convert to.
- The calculator applies the conversion factor and displays the result.
Formulas
The math behind this calculator, written out so you can verify the result.
Conversion factor method
Each unit has a factor relative to meters: km=1000, mile=1609.344, meter=1, foot=0.3048. Divide the value's factor by the target's factor.
Example:
Input: value=10 km to miles
Calculation: 10 × (1000 / 1609.344)
Result: ≈ 6.2137 miles
Real-world use cases
Where this calculation shows up in everyday life.
Running and racing
Convert race distances like 5K, 10K, or marathon to miles for training plans.
Example: 5 km = 3.11 miles
Travel planning
Understand distances in foreign countries when signs use different units.
Example: 100 miles = 160.93 km
Construction and DIY
Convert measurements from blueprints or materials between metric and imperial.
Example: 10 meters = 32.81 feet
Tips and common mistakes
Tips
- Remember: 1 mile ≈ 1.609 km, so miles are longer than kilometers.
- For quick mental estimates, multiply miles by 1.6 to get kilometers.
- To convert feet to meters, divide by 3.28.
- Use more decimal places for precise engineering or scientific work.
Common Mistakes to Avoid
- Confusing the direction of conversion (e.g., multiplying instead of dividing).
- Using approximate factors when exact values are needed.
- Forgetting to convert all measurements to the same unit before calculations.
Assumptions and limitations
- Use the stated inputs and units.
- Results are estimates for planning and education.
- Check measurements and source data before making an important decision.