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

What Is a Gateway IP Address? Router Settings vs Network Diagnostic Tools

November 1st, 2026
A gateway IP address is the local address your device uses to reach other networks, including the internet. On most home networks, that address is the routers private IP, often something like 192.168.1.1 or 192.168.0.1. On Windows, it appears as Default Gat... Read more


How to Reset WordPress After Testing Dozens of Themes and Plugins on a Live Site

November 1st, 2026
Use WP Reset only after you back up the site, confirm what must stay, and accept that a reset will remove content, settings, and database clutter. Testing dozens of themes and plugins on a live WordPress site ca... Read more


Spectrum vs Xfinity vs AT&T Fiber: Which Internet Provider Offers the Best Speeds?

October 31st, 2026
AT&T Fiber is the best pick for pure speed because its fastest home plans offer equal download and upload speeds up to 5 Gbps, where available [source: AT&T]. Spectrum and Xfinity can be ver... Read more


Fiber vs Cable Internet for Gaming: Latency, Upload Speed, and Pricing Explained

October 31st, 2026
Pick fiber if it is available and the price is close. For gaming, fiber usually wins because it has lower ping, stronger upload speed, and fewer slowdowns during busy hours. The FCC says online gaming can work with about 4 Mbps download speed, but that number does not tell the wh... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

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

Length Conversion

Area

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

Area Conversion

Mass

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

Mass Conversion

Volume

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

Volume Conversion

Temperature

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

Temperature Conversion

Time

Convert units of time. Examples of such units are milliseconds and minutes.

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 hectopascals and bars.

Pressure Conversion

Digital

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

Digital Conversion

Parts Per

Convert units of parts per. Examples of such units are parts-per-million and parts-per-billion.

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 kilowatts and gigawatts.

Power Conversion

Energy

Convert units of energy. Examples of such units are joules and kilojoules.

Energy Conversion

Volume Flow Rate

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

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are hertz 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 kvar and gvar.

Reactive Power Conversion

Angle

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

Angle Conversion