MOTORTEC™ STP PLUS Calculator Ver. 1.4
Desktop Application for Design Engineers

No Registration Required

• Automatically converts units of measurement
• User-friendly, Interactive and Intuitive
• Printable Output with all conversion units

The MOTORTEC™ STP PLUS program provides a fast, easy way to calculate speed, torque, or power. Conversions of the most commonly used units are selectable, automatically generated and can be printed out.

• Calculate Speed, Torque and Power
• Calculate Estimated Electrical Current and Losses for Optimum Motor Selection
• Easily and Accurately Convert Units of Measurement
• Customizable, Printed Report Function

Download this free engineer’s design tool, no registration required. For a complete explanation of all calculations, conversions and functions, click on the “Help” to access the complete, printable User Instructions.

Speed, Torque and Power Calculations
Rotational devices such as motors and gearmotors are given specifications in relationship to speed, torque and horsepower. The relationship between these variables follows the equation below.

Power = Speed x Torque / 5252.11...

Where the associated units are:
Speed = rpm
Torque = lb-ft
Power = Horsepower

There are a number of web sites that give additional information on the history of Horsepower and its calculation by searching the key word "horsepower".

About STP Calculator
STP is a Windows based program and will run on any version of Windows from Windows 98 forward. There are no cookies, spy ware or malware associated with this freeware program. The interactive screen updates information as you input data. It is also possible to set the precision and allow for comma separators using the "Precision" dialog box.

Conversions used in the program are listed below. STP calculations are accurate to nine decimal places.

Conversions:
pi = 3.141...
1 Pound = 16 Ounces
1 Foot = 12 Inches
1 Inch = 2.54 Centimeters
1 Meter = 100 Centimeters
1 rpm = 2 pi / 60 radians
1 Newton = 100,000 Dynes
1 Newton = 0.2248... Pounds Force
1 hp = 745.6998... Watts