Welcome to UnitConversion.io

Welcome to UnitConversion.io. This website was made to be the best unit conversion website on the internet. The way that I hope to achieve this is to make the pages extremely fast and responsive. As you will see below, there are many unit types and an extensive unit list to choose from, which differentiates UnitConversion.io from other similar sites. Our aim is to be a destination for students, professionals, and everyone in between for converting units quickly and in a well presented format. I hope you enjoy the site, and contact me if you have any feedback!

Blog

8 Micro-Frontend Tools For Modular Web Development

April 25th, 2026
Big web apps can feel like giant pizzas. Tons of toppings. Hard to slice. Harder to share. That is where micro-frontends come in. They break a big frontend into small, independent pieces. Each team owns a slice. Each slice can be built, tested, and deployed alone. Clean. Fast. Fl... Read more


Component Library Platforms For Sharing Design Elements

April 24th, 2026
Modern digital products are built by teams, not individuals. As teams grow and products expand across platforms, maintaining visual consistency and speeding up development becomes increasingly complex. This is where component library platforms for sharing design elements play a c... Read more


Design System Software For Managing UI Components

April 24th, 2026
Modern digital products are no longer built screen by screen; they are built system by system. As organizations scale across platforms, devices, and teams, managing visual consistency and user interface components becomes increasingly complex. This is where design system software for managing ... Read more


3 Frontend Error Replay Platforms For Debugging UX Issues

April 23rd, 2026
Modern web applications are more interactive than ever, but with increasing complexity comes a higher likelihood of frustrating user experience (UX) issues. Users may encounter broken forms, unresponsive buttons, or mysterious crashes that developers struggle to reproduce. Traditional logging and... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

Convert units of length. Examples of such units are meters and inches.

Length Conversion

Area

Convert units of area. Examples of such units are square feet and acres.

Area Conversion

Mass

Convert units of mass. Examples of such units are kilograms and megatonne.

Mass Conversion

Volume

Convert units of volume. Examples of such units are millimeters cubed and quarts.

Volume Conversion

Temperature

Convert units of temperature. Examples of such units are celsius and kelvin.

Temperature Conversion

Time

Convert units of time. Examples of such units are milliseconds and months.

Time Conversion

Speed

Convert units of speed. Examples of such units are kilometers per hour and knots.

Speed Conversion

Pressure

Convert units of pressure. Examples of such units are kilopascals and kilopound per square inch.

Pressure Conversion

Digital

Convert units of digital. Examples of such units are bytes and kilobytes.

Digital Conversion

Parts Per

Convert units of parts per. Examples of such units are parts-per-billion and parts-per-quadrillion.

Parts Per Conversion

Voltage

Convert units of voltage. Examples of such units are millivolts and kilovolts.

Voltage Conversion

Current

Convert units of current. Examples of such units are amps and kiloamps.

Current Conversion

Power

Convert units of power. Examples of such units are megawatts and gigawatts.

Power Conversion

Energy

Convert units of energy. Examples of such units are watt hours and gigawatt hours.

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are kilometers cubed per second and cups per second.

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are terahertz and degrees per second.

Frequency Conversion

Pace

Convert units of pace. Examples of such units are seconds per meter and seconds per foot.

Pace Conversion

Illuminance

Convert units of illuminance. Examples of such units are lux and foot-candles.

Illuminance Conversion

Reactive Power

Convert units of reactive power. Examples of such units are kvar and gvar.

Reactive Power Conversion

Angle

Convert units of angle. Examples of such units are gradians and arcminute.

Angle Conversion