Online K-factor calculator for fire sprinkler & water mist systems

This online k factor calculator is able to find the flow, pressure or k factor from a sprinkler head or a water mist nozzle be using the K factor formula. This is the starting point for most water-based fire protection design and calculations. We can use this formula for any device for which we have a k factor and that can be a sprinkler, nozzle, water cannon, foam pourer and many other devices.   

You will find below an online K factor calculator which you can use to calculate any of the three variables in the K factor equation. It can be used for both fire sprinkler and water mist systems or other types of heads & nozzles. For a detailed description of please see the K Factor formula for fire sprinklers.

 

How to use the K factor calculator

You will see that we have a metric and imperial version available this is not strictly necessary as the formula is the same so as long as you use the correct units it's not an issue, however having the units added clarity.


If you look at the calculator you will see we have Flow, Pressure and K factor across the top, these are the three K-factor variables that we can calculate. Under each are the two parameters which we need to specify and directly below. Let's take an example we wish to find the flow from a fire sprinkler head and we know the K-factor is 60.8 and the pressure to the head is 0.68 Bar then the flow from the sprinkler will be 50.14 L/min, this is illustrated below:

K factor calculator and how to use it

 If you like this then you may also be interested in our Hcal calculator software which you can download and use for free.

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