What pieces of information do you need to find the correct inductor value needed to begin testing/ and or designing?

I know that you need core area and gap figured out. Correct?

 

Hello,

What would be the application for the inductor?
Coilcraft has a lot of application notes on inductors:

Application Notes | Coilcraft

www.coilcraft.com

Bertus

 

May be of help

https://eepower.com/technical-articles/designing-custom-inductors-tips-and-tricks/

 

Thank you. Both I think are putting me in the right direction.