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

Custom Image Recognition Software Development Services: Enterprise Guide

July 30th, 2026
Enterprises are increasingly using image recognition to automate visual tasks that are slow, inconsistent, or costly when handled manually. From detecting product defects on manufacturing lines to verifying documents, monitoring safety compliance, and analyzing retail shelves, custom imag... Read more


Halftone Color Effects: Modern Techniques for Posters and Print Design

July 30th, 2026
Dots are tiny. But in print design, they can shout. Halftone color effects turn simple dots into bold posters, comic-style art, retro textures, and modern visual drama. They are fun, flexible, and surprisingly easy to understand. TLDR: Halftone effects us... Read more


Meeting Agenda Whiteboard Template for Better Team Collaboration

July 29th, 2026
Teams often lose valuable time in meetings because the agenda is unclear, hidden in a document, or not connected to the conversation happening in the room. A meeting agenda whiteboard template solves this by turning the agenda into a shared visual workspace where priorities, deci... Read more


10 Ways to Reduce Time Spent Managing Client Portfolios with Automation

July 29th, 2026
Managing client portfolios can feel like spinning plates while riding a bike. There are reports to build. Trades to check. Rebalancing to do. Emails to send. And somehow, lunch disappears. The good news is that automation can take many of these small jobs off your plate. T... 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 millimeters squared and square feet.

Area Conversion

Mass

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

Mass Conversion

Volume

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

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 days.

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 torrs and pounds per square inch.

Pressure Conversion

Digital

Convert units of digital. Examples of such units are terabits 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 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 kilowatts and gigawatts.

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 meters cubed per second and inches cubed per hour.

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are gigahertz 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 gvar.

Reactive Power Conversion

Angle

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

Angle Conversion