Board Thread:Naruto Discussions/@comment-30168130-20170420215833/@comment-4366149-20170504200856

CyberianGinseng wrote: Madara's stamina was attested to in the manga as he was capable of fighting the Senju clan for an entire day. Stamina = chakra. That doesn't put any kind of measure to the size of his chakra though. Kakashi fought for more than a day with little rest and no external chakra aid, and there are many others who did similar too. A measure is when we know character X has as much chakra as character Y.