Unit Converter
Convert between length, weight, temperature, and volume units instantly.
0.621371
Miles (mi)
1 Kilometers (km) = 0.621371 Miles (mi)
Frequently Asked Questions
Which unit categories are supported?
Length, Weight, Temperature, and Volume. Each category includes the most commonly used units for everyday and professional conversions.
How accurate are the conversions?
Conversions are accurate to 6 significant figures, which is more than sufficient for everyday use. Scientific or engineering work requiring higher precision should use a dedicated tool.
Why is temperature handled differently?
Length, weight, and volume conversions use simple multiplication factors. Temperature cannot be converted this way because its scales have different zero points. Celsius to Fahrenheit, for example, requires the formula (C × 9/5) + 32.
What does the swap button do?
The swap button flips the from and to units instantly, so you can reverse a conversion without manually changing the dropdowns.