The SI System: SI Units of Measurement with Conversion Charts

SI is the modern system of units for measurement, accepted and used worldwide. Commonly referred to as the metric system, SI is used in all areas of science, technology, and trade. The SI system is comprised of base units, supplementary units, additional units, and prefixes.

Contents

This technical information, prepared by our expert engineers, gives you an overview of the various SI units of measurement, their abbreviations, and their relationship to each other.

The information sheet contains definitions and tables for converting values from one measurement unit to another, for example, the conversion from metric units to US units for length, weight, surface area, and more:

• Conversion table for units of force
• Conversion table for units of mechanical stress
• Conversion table for units of work, energy, and heat
• Conversion table for units of power and heat flow
• Conversion table for units of pressure for gases, vapors, and liquids
• Conversion of the units into SI units
• Conversion tables for US measurement units to metric units, including Fahrenheit to Celsius and Celsius to Fahrenheit
• Conductor cross-sections AWG / MCM dimensions to mm²
• Hardness comparison table according to ISO 18265
• Overview of national standards and their designations