Cloud Base Formula

Just curious,

What formula is used for the cloud base calculations?

I’m guessing it is just ( ( Temperature F - Dew point F ) / 4.4 ) * 1000 FT ) = cloud base in feet / 3.28 = meters

I’m just wondering because I would like to list the cloud base as either CL/LCL/CCL and want to know which is most accurate. If the above formula is used then LCL is the correct term.

Regards,
Tom

=((outdoor_temperature(c)-dewpoint(c))*412) (ft)