I've never seen one out there really, so I've decided to make one to the best of my ability. I've used info from ADHD sites, both professional and forum oriented ie anecdotal information. I've also used some generally accepted medical facts, like dexmethylphenidate is 2x methylphenidate in potency and dexmethamphetamine is 2x in potency to dextroamphetamine... figures I've seen quoted in a number of places.
I've also used user opinion from drug sites, which is admittedly unreliable.
I think it's only 100% acceptable to compare doses of stims with the same MOA. I do, however, think it's reasonable to also intercompare doses of primarily DA and NE releasers and primarily DNRIs. Stuff like caffeine and nicotine, or even MDMA since it's not a traditional dopamine and norepi stimulant, don't belong on this chart.
Chart for Stim Dose Equivs:
D-methamphetamine 2.5 mg
D-amphetamine 5 mg
Adderall (75% d-amph and 25% l-amph) 7.5 mg
D-methylphenidate 7.5 mg
methylphenidate 15 mg
propylhexedrine 30 mg