Synonyms for Calculate:

n.

anticipate, think out, take a long hard look at someone/something, assume, take something into consideration, think over. assay, valuate, size up.

v.

plan on (verb)
aim, assume, plan, anticipate, suppose, count on.
think (verb)
brood, ponder, debate, cogitate, analyze, muse, speculate, envision, meditate, deliberate, contemplate, reason, imagine, cerebrate, reflect, concentrate.

Other synonyms:

add up, valuate, assume. add
figure, tally, sum.
add up
total.
gauge
gauge.
valuate
valuate.

Usage examples for calculate

  1. He spoke more loudly: " Are you makin' that bet for the sake of arguin', partner, or do you calculate to back it up with cold cash?" – The Untamed by Max Brand