Units, Constants, Conversions, Online Calculators

Engineer's
Handbook

Reference Tables

Rapid
Prototyping

Mechanical
Components

Index of Tables

Manufacturing

Materials

Fasteners

Equations - Units - Constants

Site Index

Reference Tables -- Units, Constants, Conversions, Online Calculators

Units / Constants

Fundamental Physical Constants --
Engineering, Physics, Astronomy, Chemistry

Common Physical Constants

U.S. Standard Weights & Measures

SI Standard Unit Definitions

SI / Metric Unit Prefixes

Conversions

Engineering Unit Conversion Factors

Decimal Equivalents for Fractions

Equations

Fluid Power / Hydraulic Formulas