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

QBank vs Bynder vs Brandfolder: Best Digital Asset Management Platforms Compared

August 12th, 2026
Choosing a digital asset management platform is no longer just an IT decision. For marketing, brand, creative, ecommerce, and communications teams, a DAM system determines how quickly people can find approved files, protect brand consistency, manage rights, and deliver content across channels. ... Read more


Best Nonprofit CRM Software Like Raiser's Edge: 8 Solutions Compared

August 12th, 2026
Choosing a nonprofit CRM can feel like picking a snack at a giant movie theater. So many options. So many features. And somehow, the popcorn costs extra. If you like Raiser's Edge but want to compare other tools, this guide keeps things simple. TLDR: Rais... Read more


Best Foster Care Software Platforms Compared

August 11th, 2026
Choosing foster care software is no longer just an IT decision; it affects placement speed, licensing accuracy, caseworker workload, compliance, and the daily experience of foster families. The best platform depends on whether your organization is a private foster care agency, a county or state c... Read more


Best SMS Outreach Platforms for Sales Teams, Recruiting, and Customer Notifications

August 11th, 2026
SMS remains one of the most reliable channels for time-sensitive communication because it is direct, widely supported, and usually read quickly. For sales teams, recruiters, and customer operations teams, the best SMS outreach platform is not simply the one that sends messages at scale; it is the... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

Convert units of length. Examples of such units are centimeters 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 micrograms and megatonne.

Mass Conversion

Volume

Convert units of volume. Examples of such units are milliliters and pints.

Volume Conversion

Temperature

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

Temperature Conversion

Time

Convert units of time. Examples of such units are minutes and years.

Time Conversion

Speed

Convert units of speed. Examples of such units are miles per hour and feet per second.

Speed Conversion

Pressure

Convert units of pressure. Examples of such units are pascal and megapascals.

Pressure Conversion

Digital

Convert units of digital. Examples of such units are kilobits and terabits.

Digital Conversion

Parts Per

Convert units of parts per. Examples of such units are parts-per-million 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 milliamps.

Current Conversion

Power

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

Power Conversion

Energy

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

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are pints per minute and gallons per second.

Volume Flow Rate Conversion

Frequency

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

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 volt-ampere reactive and gvar.

Reactive Power Conversion

Angle

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

Angle Conversion