With a pretty high precision:

It's speed of light in vacuum, Planck constant, Elementary Charge, and so on:

Speed of light in vacuum:

299792458.077272104522039393212883 Obtained

299792458(fixed) CODATA 2022

Planck constant:

6.6260686392218445411837981460499 * 10^(-34) Obtained

6.62606896(33) * 10^(-34) CODATA 2006

etc.