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

International Ecommerce Strategy: 8 Steps to Expand Your Online Store Globally

July 26th, 2026
Global ecommerce gives online retailers access to larger markets, seasonal demand in multiple regions, and new customer segments that may be underserved locally. However, international expansion works best when it is treated as a structured growth strategy, not a simple shipping ... Read more


Best Custom Cloud Hosting Providers in France for Businesses

July 25th, 2026
France has become one of Europes most attractive markets for custom cloud hosting, especially for businesses that need strong data protection, low latency across Western Europe, and flexible infrastructure that can grow with demand. Whether you run an e-commerce platform, SaaS p... Read more


Alternative to YouTube: 9 Video Platforms for Creators and Viewers

July 24th, 2026
For many creators and viewers, YouTube remains the default place to publish, discover, and monetize video. However, it is not the only serious option. Changes in recommendation systems, monetization rules, copyright enforcement, and audience behavior have encouraged many people to look for reliab... Read more


Benefits of an Online Translation Degree: Career Opportunities and Salary Insights

July 24th, 2026
As global business, digital media, healthcare, law, and technology continue to cross borders, the demand for skilled translators is growing in both scope and sophistication. An online translation degree can help bilingual and multilingual professionals turn language ability into ... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

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

Length Conversion

Area

Convert units of area. Examples of such units are millimeters squared and hectare.

Area Conversion

Mass

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

Mass Conversion

Volume

Convert units of volume. Examples of such units are cups 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 weeks.

Time Conversion

Speed

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

Speed Conversion

Pressure

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

Pressure Conversion

Digital

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

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 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 megawatts.

Power Conversion

Energy

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

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are pints per hour and quarts 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 kvar.

Reactive Power Conversion

Angle

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

Angle Conversion