Free Unit Converter Online
Instantly convert any unit of measurement — 10 categories, 80+ units, completely free.
| Meter (m) | Kilometer (km) |
|---|---|
| 1 | 0.001 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
Popular Conversions
All Categories
Length
Convert between meters, feet, miles, inches, and more
Weight
Convert between kilograms, pounds, ounces, stones, and more
Temperature
Convert between Celsius, Fahrenheit, and Kelvin
Volume
Convert between liters, gallons, cups, fluid ounces, and more
Area
Convert between square meters, acres, hectares, and more
Speed
Convert between km/h, mph, m/s, knots, and more
Time
Convert between seconds, minutes, hours, days, weeks, and more
Data
Convert between bytes, kilobytes, megabytes, gigabytes, and more
Pressure
Convert between Pascal, bar, PSI, atmospheres, and more
Energy
Convert between joules, calories, kilowatt-hours, BTU, and more
The Best Free Unit Converter Online
HCR Unit Converter is a free unit converter online that covers 10 measurement categories and over 80 units. All calculations happen instantly in your browser — no server requests, no delays, no signup required. Whether you need a free length converter online, a free temperature converter online, or a free weight converter online, you'll find it here.
Supported categories: length (km, miles, feet, inches), weight (kg, lb, oz), temperature (°C, °F, K), volume (liters, gallons, cups), area (m², acres, hectares), speed (km/h, mph, m/s), time (seconds to years), digital data (bytes to petabytes), pressure (bar, PSI, atm), and energy (joules, calories, kWh).