Unit Converter
Convert length, weight, temperature, area (including pyeong), volume, data, and speed units in real time. Enter a value and the result is calculated instantly. All calculations happen in your browser.
Popular unit conversions
Click a link to apply that conversion instantly.
Length
- Meters → Kilometers (m to km)
- Kilometers → Meters (km to m)
- Centimeters → Meters (cm to m)
- Meters → Centimeters (m to cm)
- Millimeters → Centimeters (mm to cm)
- Centimeters → Inches (cm to inch)
- Inches → Centimeters (inch to cm)
- Kilometers → Miles (km to mile)
- Miles → Kilometers (mile to km)
- Feet → Centimeters (feet to cm)
- Meters → Feet (m to feet)
Weight
Temperature
All conversion combinations
Every unit combination by category. Click one to convert instantly.
How to use
- Choose the category to convert (length, weight, temperature, etc.).
- Enter a value and pick the from and to units.
- The result appears in real time. Use "Swap units" to reverse the direction.
Frequently asked questions
Which units can I convert?
You can convert length (m, km, cm, mm, mile, yard, foot, inch), weight (kg, g, mg, t, lb, oz), temperature (Celsius, Fahrenheit, Kelvin), area (m², including pyeong), volume, data, and speed units.
Can I convert pyeong too?
Yes. In the area category you can convert between pyeong, square meters (m²), square feet, and more. One pyeong is about 3.306 m².
Are the values I enter sent to a server?
No. All calculations happen inside your browser, and the values you enter are not sent to any external server.