Length Unit Converter
Convert engineering quantities quickly and consistently.
Quick Access:
Manual Conversion Shortcut
Select units to view formula.
Equivalent Units
Select a quantity to see equivalents.
Standard Reference Tables
SI System
| SI Unit | Equivalent |
|---|---|
| 1 meter (m) | Base Length Unit |
| 1 millimeter (mm) | 0.001 m |
FPS System
| FPS Unit | Equivalent |
|---|---|
| 1 foot (ft) | 12 inches = 0.3048 m |
| 1 inch (in) | 25.4 mm |
CGS System
| CGS Unit | Equivalent |
|---|---|
| 1 centimeter (cm) | 0.01 meters = 10 mm |
Length
What is Length in Engineering?
Length is the fundamental one-dimensional measurement of distance. In process and piping engineering, precise length conversions are critical to ensure that physical equipment fits within the spatial constraints of a plant or offshore platform.
Length unit conversions are necessary for:
- Pipe Routing: Calculating total equivalent pipe lengths for friction loss equations.
- Equipment Elevation: Determining Net Positive Suction Head Available (NPSHa) for pumps.
- Vessel Sizing: Setting tangent-to-tangent (T/T) heights for vertical separators.
Quickly convert between the SI system (meters, millimeters) and the Imperial system (feet, inches) used heavily in piping specifications.