10 km run
- 10 × 0.621371 = 6.21371 miles
- Rounded to two decimals = 6.21 mi
unit calculator
Kilometers to Miles Converter
Instantly convert distances from kilometers to miles with the standard 1 km = 0.621371 mi conversion rate.
Results
- Miles
- 3.11 mi
How to use this calculator
- Enter a distance in kilometers.
- We multiply by 0.621371 to convert to statute miles.
- View the miles result (rounded for display).
Inputs explained
- Kilometers
- Metric distance you want to convert to miles.
How it works
The calculator multiplies kilometers by 0.621371, the accepted conversion for statute miles.
Results update instantly as you type, perfect for trip planning or quick homework checks.
Formula
Miles = Kilometers × 0.621371
When to use it
- Converting race distances or GPS routes from km to miles.
- Planning trips in regions that post distances in miles.
- Quick classroom or homework unit conversions.
Tips & cautions
- Statute miles are used for roads. Nautical miles use a different conversion (1 nm = 1.852 km).
- Keep extra decimals if you need precision for routing or engineering.
- If you only have meters, divide by 1,000 first to get kilometers.
- Statute miles only; nautical mile conversions are not included.
- Rounded display may differ slightly from full-precision internal math.
Worked examples
Marathon distance
- 42.195 × 0.621371 = 26.2188 miles
Deep dive
This km to miles converter multiplies kilometers by 0.621371 to give statute miles instantly. Enter any distance for quick travel, fitness, or homework conversions.
Use it to plan routes in mile-based regions or convert race distances without manual math. Statute miles only; nautical miles require 1 nm = 1.852 km.
FAQs
- Is this for statute miles?
- Yes, the calculation uses statute miles commonly used in the US and UK road systems.
- How precise is the conversion?
- We use five decimal precision for internal math and round display values to two decimals by default.
- How do I convert meters to miles?
- Divide meters by 1,000 to get km, then convert here (or multiply meters by 0.000621371).
- Does this handle nautical miles?
- No. Nautical miles are based on 1 nm = 1.852 km; use that if needed.
- Can I get an unrounded value?
- Yes—use the precise result if shown in the UI; the internal calculation keeps more decimals than the rounded display.
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Always double-check mission-critical conversions, especially for aviation or engineering requirements.