Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

# USCS - United States Customary System Units

## An overview of the United States Customary System Units - Imperial Units.

USCS - United States Customary System Units - the measuring units used in the U.S. is based on the

• mile
• foot
• inch
• gallon
• second
• pound

USCS units are also called the Imperial units. Imperial or USCS units are gradually being replaced by SI units.

### Commonly used USCS and SI-units

United States Customary System Units - USCS - vs. SI-units
USCS unitSI unitSI symbolConversion factor (mutiply USCS unit with factor )
Square foot Square meter m2 0.0929
Cubic foot Cubic meter m3 0.2831
Pound per square inch Kilopascal kPa 6.894
Pound force Newton N 4.448
Foot pound torque Newton meter N·m 1.356
Kip foot Kilonewton meter kN·m 1.356
Gallon per minute Liter per second L/s 0.06309
Kip per square inch Megapascal MPa 6.89
•   a kip is 1000 lb

More conversions:

## Related Topics

• ### Basics

Basic engineering data. SI-system, unit converters, physical constants, drawing scales and more.

## Related Documents

• ### British Imperial System

A principal system of units.
• ### Fluid Mechanics - Imperial and SI Units vs. Dimensions

Imperial (USCS) and SI dimensions and units terminology in fluid mechanics.
• ### SI System

An introduction to the SI metric system.
• ### Symbols Used to Denote a Chemical Reactions and Process or Condition

Explanation of symbols used as subscripts or superscripts to tell more about the type of chemical reaction, process or condition.
• ### Unit Converter with commonly used Units

Common converting units for Acceleration, Area, Density, Energy, Energy per unit mass, Force, Heat flow rate, Heat flux, Heat generation per unit volume and many more.

## Search

Search is the most efficient way to navigate the Engineering ToolBox.

## Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

## Citation

• The Engineering ToolBox (2005). USCS - United States Customary System Units. [online] Available at: https://www.engineeringtoolbox.com/uscs-d_940.html [Accessed Day Month Year].

Modify the access date according your visit.

6.3.17

.