Calculators.

General
Unit Conversion
Periodic Table
Piping
Darcy Weisbach
Heating piping
Water Hammer
Electrical
Voltage Drop
kVAR calculator
Motor protection
Motor sizing

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Free Engineering online Calculators

Welcome to the free engineering online calculators page of our website.

ATTENTION! If you have Java 2 platform installed, in order to properly use the calculators, you have to disable <APPLET> Tag support which is enabled by default. In order to do this, you have to:

1. Open the control panel --> Windows Start / control panel

2. Click the Java icon, to open the Java VM.

3. Click the "Advanced" TAG, <Applet> tag support and disable the "Internet Explorer" check box

4. The calculators should be o.k.

Click here to go to the new asp version of monachos calculators!

You will find a powerful units conversion program , Unit Master , which will convert over 1000 units from 11 categories for you.

Darcy - Weisbach calculator calculates friction loss over a pipeline , using the popular Darcy Weisbach equation. Friction factor is computed by the program using the Colebrook equation.

Heating piping is another useful online calculator. You may calculate the  water flow required to transfer a given amount of heat energy and the vice - versa , along with the pressure drop along the pipeline.

Water hammer calculates the water hammer effect on a pipeline protected by an open tank , or a air vessel absorber under pressure.

The voltage drop calculator is yet another powerful electrical calculator. Besides the voltage drop on a wire line which is calculated keeping in mind the temperature influence and the inductance  of the cable itself , you may calculate the line current given the voltage and electric power to transfer for 1 phase and 3 phase lines. You may also perform the reverse calculation (given the available line current - calculate the maximun electric power which can be feeded).

kVAR master is a simple program to calculate the capacitors needed to correct cos(f) of an installation.

Motor protection is another calculator which will calculate the necessary motor protection equipment for protecting an electric motor.

Finally motor sizing is rather an active page than a calculator. You can find equations to calculate motor sizes for various applications , and perform automatic calculations.

Before using the calculators