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

7 Sales Conversation Intelligence Platforms Like RingDNA: Compare Gong, Chorus, and Salesloft for Call Recording, Coaching, and Pipeline Insights

November 12th, 2026
Gong is the best all-around RingDNA alternative for call recording, coaching, and pipeline insight, while Chorus suits ZoomInfo-heavy teams and Salesloft fits sales teams that want conversation data inside their engagement workflow. That matters because sellers still spend too li... Read more


Windows Browser Sandboxes: 5 Tools for Safely Testing Untrusted Websites, Downloads, and Web Applications

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Use a disposable browser sandbox before you open unknown links, unknown files, or unfinished web apps. It is the simplest way to stop a bad site from touching your real Windows profile, saved passwords, browser cookies, and local files. Google Safe Browsing says it helps protect ... Read more


The Best Alternatives to Zoom for Enterprise Collaboration: 4 Platforms for Video Meetings, Webinar Hosting, and Distributed Team Communication

November 11th, 2026
For most large companies, the strongest Zoom alternatives are Microsoft Teams, Google Meet, Cisco Webex, and RingCentral Video. They cover secure video meetings, webinar hosting, chat, file sharing, and daily team communication without forcing every workflow through one meeting l... Read more


The Best Alternatives to Qualtrics for Survey Research: 7 Tools for Customer Feedback, Employee Insights, and Research Analytics

November 11th, 2026
The best Qualtrics alternative depends on the job: SurveyMonkey fits quick research, Alchemer fits workflow-heavy teams, QuestionPro fits research analytics, and Culture Amp fits employee insights. Qualtrics is powerful, but it can be heavy and costly for teams that only need cle... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

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

Length Conversion

Area

Convert units of area. Examples of such units are kilometers squared and inches squared.

Area Conversion

Mass

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

Mass Conversion

Volume

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

Volume Conversion

Temperature

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

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 miles per hour and feet per second.

Speed Conversion

Pressure

Convert units of pressure. Examples of such units are kilopascals and torrs.

Pressure Conversion

Digital

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

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 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 gigawatts.

Power Conversion

Energy

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

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are feet cubed per hour and yards cubed per second.

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are hertz and radian 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 volt-ampere reactive and gvar.

Reactive Power Conversion

Angle

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

Angle Conversion