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

Face Swap Video Free 30 Seconds: Understanding Short Free Face-Swap Video Tools, Their Capabilities, Privacy Considerations, and Responsible Creative Uses

September 7th, 2026
Free 30-second face-swap video tools are best used for quick previews, memes, social clips, and harmless creative tests, not for serious production or tricking viewers. They can be useful, but they come with limits: lower resolution, watermarks, queue delays, face blur, and priva... Read more


Embed a Video PowerPoint: A Complete Guide to Embedding Videos in PowerPoint Presentations, Managing Playback, and Avoiding Compatibility Issues

September 6th, 2026
Use Insert > Video, choose a clean MP4 file, and test playback on the exact computer you will present from. That is the safest way to embed a video in PowerPoint without surprise drama. Online videos can work too, but they need internet and can misbehave at the worst ... Read more


How to Get More YouTube Views: Proven Strategies for Increasing YouTube Views Through Better Titles, Thumbnails, Retention, SEO, Content Strategy, and Audience Engagement

September 6th, 2026
The fastest reliable way to get more YouTube views is to improve the promise of each video, then prove that promise quickly. That means stronger titles, clearer thumbnails, better first 30 seconds, tighter editing, smart SEO, and consistent audience interaction. Views rarely grow... Read more


Compress MOV File: How to Compress MOV Files, Reduce Storage Requirements, and Preserve Video Quality for Sharing and Publishing

September 5th, 2026
The fastest way to compress a MOV file is to reduce its bitrate, export it with H.264 or HEVC, and keep the original resolution only when it truly matters. A 4K MOV from an iPhone, camera, or editing app can shrink by 60% to 90% without looking ruined, especially when the file is... 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 hectare and kilometers squared.

Area Conversion

Mass

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

Mass Conversion

Volume

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

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 hours 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 megapascals and bars.

Pressure Conversion

Digital

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

Digital Conversion

Parts Per

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

Parts Per Conversion

Voltage

Convert units of voltage. Examples of such units are volts 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 watts and megawatts.

Power Conversion

Energy

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

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are pints per hour and feet cubed per minute.

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are hertz and terahertz.

Frequency Conversion

Pace

Convert units of pace. Examples of such units are minutes per kilometer 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 volt-ampere reactive and mvar.

Reactive Power Conversion

Angle

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

Angle Conversion