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

Order Management Solutions: 15 Platforms for Modern Businesses

August 20th, 2026
Modern commerce is no longer a straight line from buy to ship. Orders now arrive from websites, marketplaces, social channels, retail stores, call centers, and wholesale portals. Order management solutions help businesses capture, route, fulfill, track, modify, and report on ... Read more


What Is Procurement Software Used For? Features, Benefits, and Examples

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Procurement is where an organization turns business needs into actual supplies, services, contracts, and vendor relationships. In a small company, that might mean ordering laptops and office supplies. In a large enterprise, it can involve thousands of purchase requests, multi-year supplier contra... Read more


Google Docs Timeline Template: Free Examples and How to Create One

August 19th, 2026
Timelines are useful when a project, event, process, or business plan must be explained in a clear sequence. A Google Docs timeline template gives teams a simple way to organize dates, milestones, responsibilities, and progress without needing specialized design software. Because... Read more


Do Rich Snippets Improve SEO Rankings? What the Data Shows

August 19th, 2026
Rich snippets often look like an SEO shortcut because they make search results more visible, more useful, and more clickable. However, the real question is not whether they look better, but whether they directly improve organic rankings. The data shows a more nuanced answer: rich snippets... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

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

Length Conversion

Area

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

Area Conversion

Mass

Convert units of mass. Examples of such units are ounces and pounds.

Mass Conversion

Volume

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

Volume Conversion

Temperature

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

Temperature Conversion

Time

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

Time Conversion

Speed

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

Speed Conversion

Pressure

Convert units of pressure. Examples of such units are pascal and kilopound per square inch.

Pressure Conversion

Digital

Convert units of digital. Examples of such units are kilobits 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 millivolts 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 watts and megawatts.

Power Conversion

Energy

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

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are teaspoons per second and fluid ounces per second.

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 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 mvar and kvar.

Reactive Power Conversion

Angle

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

Angle Conversion