Have just updated these two documents. The spreadsheet now includes the logic from the omni calculator posted about by Jelley93 the other day:-
healthunlocked.com/thyroidu...
helvella - Estimation of Levothyroxine Requirement in Adults
A discussion about the use of formulas to estimate levothyroxine dosing.
dropbox.com/s/gzeknihf815rb...
A spreadsheet with several active formulas which work out possible levothyroxine requirements including NICE NG154 guidelines. These formulas are referred to in the document above.
This is an Excel spreadsheet but is likely to work in other spreadsheet software.
