Table of Equivalent Focal Lengths

I thought this is very very useful, and would help more than one to get their numbers straight with lenses and cameras.

The Crop Factor Unmasked - Articles and Tips | PentaxForums.com

Very simple and clear to understand. IMHO.

Thanks so much, Chris! I am one of those who can never get it straight, so this will be a great touchstone.

As an addition to that article, I can wholeheartedly recommend this DPR article about aperture equivalence and its effect on both DOF control and noise performance:

What is equivalence and why should I care?

It goes a bit deeper than the above article, but you might find it very helpful in comparing the DOF and noise abilities of cameras with different sensor sizes based on their respective lenses' aperture / f-number.