Free Unit Calculator

Instantly convert units across multiple categories – from Newtons, kgf, Ton-force, PSI, and Bar to kilograms, grams, tonnes, as well as millimeters, centimeters, meters, and more. Fitco’s free online unit converter is designed for engineers and QA teams, simplifying technical measurements and streamlining your workflow.

Big & Bold Unit Converter

Unit Converter

1. Pick a Category:

2. Enter Your Number: 3. Choose Units to Convert:

4. See the Result:

Conversion based on standard factors.

How to Use This Converter:

Pick Category: Choose what you want to measure (like Length or Mass).
Enter Value: Type the number you want to convert.
Choose Units: Select the unit you HAVE (From) and the unit you WANT (To).
See Result: The answer appears in the big box!
Use the ⇄ button to swap units.
Use 'Clear' to start over or 'Copy' to save the number.