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

MDToolbox Review: Features, Medical Credentialing Software Alternatives & Pricing

August 9th, 2026
Healthcare teams often shop for software with one big goal: reduce administrative friction without adding another complicated system. MDToolbox is best known as an electronic prescribing platform, but many buyers compare it alongside broader medical administration tools, includin... Read more


Best Electronic Signature Software for Secure Document Signing and Workflow Automation

August 9th, 2026
Electronic signature software has become a core part of modern business operations, helping organizations sign contracts, approvals, proposals, HR forms, and compliance documents without printing or scanning. The best platforms do more than capture a signature; they protect sensitive data, verify... Read more


Ninth Brain Review: Features, Pricing & Compliance Management Alternatives

August 8th, 2026
Ninth Brain is a training and compliance platform built for teams that live in a world of licenses, certifications, policies, and audits. Think EMS, fire, healthcare, and public safety groups. It helps managers track who is trained, who is expiring soon, and who needs a friendly nudge. ... Read more


Athenahealth vs eClinicalWorks vs NextGen vs Epic

August 7th, 2026
Choosing an electronic health record platform is not simply a software decision; it affects clinical workflows, billing performance, patient access, reporting, interoperability, and staff satisfaction. Athenahealth, eClinicalWorks, NextGen, and Epic are all established EHR vendor... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

Convert units of length. Examples of such units are inches and miles.

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 milligrams and tonne.

Mass Conversion

Volume

Convert units of volume. Examples of such units are meters cubed and kilometers 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 nanoseconds and milliseconds.

Time Conversion

Speed

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

Speed Conversion

Pressure

Convert units of pressure. Examples of such units are kilopascals 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-million and parts-per-quadrillion.

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 milliamps and kiloamps.

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 gigawatt hours and kilojoules.

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are millimeters cubed per second and pints per second.

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are hertz and revolutions per minute.

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 mvar and kvar.

Reactive Power Conversion

Angle

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

Angle Conversion