k-value and pipe length calculator

enter the value and click "calculate", the calculation result will be displayed.
`K=f_T×([L×1000]/D)`
fT = turbulent friction coefficient l = length
d = pipe diameter k = k value

enter a value:

turbulent friction coefficient:
length:
m
pipe diameter:
mm

calculation result:

k value:
k-value and pipe length calculator

valve manufacturers conduct experiments on various valves and fittings to obtain empirical pressure drop expressions for specific types of piping system components.

this calculator shows the relationship between k value and tube length.

the k values ​​of various accessories are obtained through experiments. for any valve, the length-to-diameter (l/d) factor allows the equivalent length of the pipe to be determined by measuring the pressure drop across the valve versus the pipe diameter.
search calculator