Free Online Unit Converter
Length, weight, temperature, speed & more
Centimeters (cm)0.1
Meters (m)0.001
Kilometers (km)1.0000e-6
Inches (in)0.03937007874
Feet (ft)0.003280839895
Yards (yd)0.001093613298
Miles (mi)6.2137e-7
About Unit Converter
Convert between units of length, weight, temperature, speed, volume, and more. Supports metric, imperial, and scientific units. Instant results with no app installation needed.
How to Use Unit Converter
- 1
Select a category
Choose length, weight, temperature, speed, or another unit category.
- 2
Enter a value
Type the number you want to convert.
- 3
View results
Conversions to all available units in that category are shown instantly.
Frequently Asked Questions
Is my data safe?
Yes. All processing happens entirely in your browser. Your data never leaves your device and is never uploaded to any server.
How accurate are the conversions?
Conversions use standard conversion factors and are accurate to at least 10 decimal places for most units.