The estimated exposure calculator has been slightly updated to include menu selections for full sized sensors. I added the 56mp Canon and 36mp Nikon to the options.
You can also select "user" and type in the values for your sensor and/or camera.
These estimates are merely suggestions for where to bracket exposures. Lens differences, atmospheric effects, altitude, humidity, and more may directly impact your results.
For example if the calculator suggests an exposure setting of 1/60th of a second, use exposures surrounding that value (1/30th to 1/125th).
For lower altitude eclipses the calculator has an option to incorporate atmospheric extinction due to the increased amount of atmosphere you will be observing the eclipse through.