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

Spin Wheel Sales: Spinify vs Spin the Wheel and Other Gamification Tools for Increasing Sales Engagement

September 17th, 2026
Spinify is the better choice for sales teams that want structured, CRM connected gamification, while Spin the Wheel tools work best for quick contests, prize draws, and short bursts of excitement. Sales leaders should choose based on how serious the program is. If the goal is to ... Read more


What Is Ad Hoc Analysis? Jupyter vs Excel and Other Tools for One-Off Data Analysis

September 17th, 2026
Ad hoc analysis is a quick, one-off data investigation used to answer a specific question right now. It is not a huge reporting project. It is not a polished dashboard. It is the data version of opening the fridge and asking, What can I make with this? ... Read more


Sln vs Slnx: Visual Studio .sln vs .slnx for Modern .NET Solution Management

September 17th, 2026
Use .slnx for new .NET repositories when your whole toolchain supports it, but keep .sln when compatibility matters more than file cleanliness. The old Visual Studio .sln format still works everywhere, yet it carries decades of historical ba... Read more


Dependent Tool Calls LLM: LangGraph vs OpenAI Agents SDK and Other Frameworks for Reliable Tool-Calling Workflows

September 16th, 2026
LangGraph is usually the safer choice for dependent tool calls when the workflow has strict ordering, branching, retries, and audit needs. OpenAI Agents SDK is cleaner for fast agent builds inside the OpenAI stack, especially when tool use is simple or moderately chained. The bes... Read more



Unit Conversion



mm

=

cm

Unit Types

Length

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

Length Conversion

Area

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

Area Conversion

Mass

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

Mass Conversion

Volume

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

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 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 bytes.

Digital Conversion

Parts Per

Convert units of parts per. Examples of such units are parts-per-million 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 milliamps 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 kilowatt hours and joules.

Energy Conversion

Volume Flow Rate

Convert units of volume flow rate. Examples of such units are liters per hour and kiloliters per hour.

Volume Flow Rate Conversion

Frequency

Convert units of frequency. Examples of such units are megahertz and gigahertz.

Frequency Conversion

Pace

Convert units of pace. Examples of such units are minutes per kilometer 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 volt-ampere reactive and gvar.

Reactive Power Conversion

Angle

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

Angle Conversion