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

How to Build a Document Management Workflow for Approvals, Version Control, and Secure Storage

August 28th, 2026
Build the workflow around three controls first: approval status, version history, and access rules. If those are weak, every other feature becomes decoration. A good document management workflow should show who owns a document, who must approve it, which version is current, and w... Read more


How to Optimize PDFs for SEO With Searchable Text, Metadata, Links, Structure, and Accessibility

August 28th, 2026
Make your PDF readable by Google and humans first. That means real text, clear metadata, smart links, tidy headings, and accessibility tags. A PDF should not act like a locked filing cabinet. It should act like a helpful web page in a neat little suit. TLD... Read more


Kevin Bacon Number: How Search Engines Turn Popular Culture Trivia Into Interactive Knowledge Experiences

August 28th, 2026
Kevin Bacon Number is a game that shows how search engines can turn silly trivia into useful, clickable knowledge. Type a name, ask for a connection, and the engine builds a path through films, actors, and shared credits. It feels like magic. Really, it is graph search wearing a ... Read more


Google Easter Eggs for Developers: What Hidden Search Features Reveal About Interaction Design and Query Processing

August 28th, 2026
Google Easter eggs are tiny product lessons hiding in plain sight: they show how search systems detect intent, trigger special responses, and keep playful interactions from breaking the core task. For developers, they are more than jokes. They are compact examples of query parsin... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

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

Length Conversion

Area

Convert units of area. Examples of such units are inches squared and square miles.

Area Conversion

Mass

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

Mass Conversion

Volume

Convert units of volume. Examples of such units are meters 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 seconds and weeks.

Time Conversion

Speed

Convert units of speed. Examples of such units are meters per second and knots.

Speed Conversion

Pressure

Convert units of pressure. Examples of such units are bars and pounds per square inch.

Pressure Conversion

Digital

Convert units of digital. Examples of such units are megabits and gigabits.

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 volts and millivolts.

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 watts and kilowatts.

Power Conversion

Energy

Convert units of energy. Examples of such units are megawatt hours and joules.

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are liters per second and gallons 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 minutes per kilometer.

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 volt-ampere reactive and mvar.

Reactive Power Conversion

Angle

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

Angle Conversion