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

Single-Minded Proposition: Examples and Marketing Applications

June 26th, 2026
In modern marketing, attention is scarce and choices are abundant. A single-minded proposition helps a brand communicate one clear, persuasive idea that audiences can understand quickly and remember easily. Rather than listing every feature, benefit, and proof point, it focuses t... Read more


SEO Portsmouth: How Local Businesses Can Rank Higher

June 26th, 2026
Portsmouth is packed with brilliant local businesses. Cafes. Plumbers. Dentists. Gyms. Shops. Solicitors. Builders. Beauty salons. You name it, Portsmouth has it. But here is the big question. When someone searches on Google, do they find you, or do they find your competitor down the roa... Read more


Top Franchise Business Intelligence Data Sources in 2026

June 26th, 2026
Franchise growth in 2026 is no longer driven by instinct alone. Operators, investors, franchisors, and franchisees are increasingly using business intelligence data sources to decide where to open, which brands to back, how to benchmark performance, and when to adjust pricing, st... Read more


Virtual ITC Solutions and Business Applications

June 25th, 2026
Organizations are increasingly relying on virtual information and communication technology solutions to operate securely, efficiently, and at scale. As business processes become more distributed, data driven, and dependent on uninterrupted connectivity, Virtual ITC solutions have... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

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

Length Conversion

Area

Convert units of area. Examples of such units are centimeters squared and square feet.

Area Conversion

Mass

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

Mass Conversion

Volume

Convert units of volume. Examples of such units are inches cubed and pints.

Volume Conversion

Temperature

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

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 meters per second and miles per hour.

Speed Conversion

Pressure

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

Pressure Conversion

Digital

Convert units of digital. Examples of such units are bits and megabytes.

Digital Conversion

Parts Per

Convert units of parts per. Examples of such units are parts-per-trillion and parts-per-quadrillion.

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 milliamps.

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 kilowatt hours and kilojoules.

Energy Conversion

Volume Flow Rate

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

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are megahertz 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 kvar.

Reactive Power Conversion

Angle

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

Angle Conversion