This project provides a class to represent numbers with units (such as "1 mm" or "1 ft"). It can perform unit conversions, and unit math on a wide range of SI, imperial, scientific, and engineering units.

• Development Status: 5 - Production/Stable
• Intended Audience: Developers
• License: MIT/X Consortium License
• Natural Language: English
• Operating System: OS Independent
• Programming Language: Ruby
• Topic: Mathematics