work out vs reckon

work out and reckon both are verbs.

Word	Noun	Adjective	Verb	Adverb
work out	No	No	Yes	No
reckon	No	No	Yes	No

As verbs, work out and reckon are synonyms defined as:

Other synonyms of work out include calculate, cipher, compute, cypher, figure.

work out (verb)	reckon (verb)
do physical exercise	deem to be
give a workout to	make a mathematical calculation or computation
come up with	expect, believe, or suppose
work out in detail	judge to be probable
find the solution to (a problem or question) or understand the meaning of	have faith or confidence in
make a mathematical calculation or computation	take account of
be calculated
happen in a certain way, leading to, producing, or resulting in a certain outcome, often well