Unit Converter
Modern unit calculator for developers and designers. Handle CSS rem/px scaling, data storage, dimensions, and scientific quantities.
About Unit Converter
Convert pixels, rem, em, centimeters, inches, and other units used in web design and print layout. Essential when translating mockups between design tools and CSS code.
iTryTools runs directly in your browser with zero server uploads, no accounts, and no watermarks.
Key Capabilities
- CSS units: px, rem, em, pt
- Physical units: cm, mm, inches
- Custom base font size for rem/em
- Instant bidirectional conversion
- Copy results for stylesheets
- Free for designers and developers
How to use Unit Converter
- 1
Select the source unit type.
- 2
Enter the value you want to convert.
- 3
Choose the target unit.
- 4
Set root font size when converting rem or em.
- 5
Copy the converted value into your project.
Frequently Asked Questions
How does rem conversion work?
Rem is relative to the root font size. The tool uses your specified root size, often 16px by default.
Are print conversions exact?
Screen DPI assumptions affect px-to-inch results. Verify against your print template when precision matters.
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