Unit Converter

Unit converter

Free Online Unit Converter

Convert between 421 units across 30 categories including length, weight, temperature, volume, speed, area, digital storage, pressure, energy, and more. Every conversion shows step-by-step working.

How to Use

Type your conversion in the AI input (e.g. "100 cm to inches") or use the Builder tab to select units from dropdowns. Results update live as you type.

All conversion categories
Acceleration (8 units) Angle (8 units) Area (19 units) Concentration (10 units) Cooking Volume (12 units) Data Transfer Rate (12 units) Density (10 units) Digital Storage (20 units) Electrical (21 units) Energy (23 units) Flow Rate (14 units) Force (12 units) Frequency (9 units) Fuel Economy (5 units) Illumination (7 units) Length (29 units) Light / Luminance (10 units) Magnetic Field (8 units) Moment of Inertia (7 units) Power (12 units) Pressure (20 units) Radiation (15 units) Speed (13 units) Temperature (8 units) Time (19 units) Torque (10 units) Typography / CSS (10 units) Viscosity (10 units) Volume (35 units) Weight / Mass (25 units)