The word(s) "reckon" appears 17 time(s) in 17 verse(s) in Quran in Abdullah Yusuf Ali translation.

(11) Closer and closer to mankind comes their reckoning: yet they heed not and they turn away.

(12) Yet they ask thee to hasten on the Punishment! But Allah will not fail in His Promise. Verily a Day in the sight of thy Lord is like a thousand years of your reckoning.

(13) If anyone invokes, besides Allah, Any other god, he has no authority therefor; and his reckoning will be only with his Lord! and verily the Unbelievers will fail to win through!

(14) On the Day that the Hour (of reckoning) will be established, the transgressors will swear that they tarried not but an hour: thus were they used to being deluded!

(15) He rules (all) affairs from the heavens to the earth: in the end will (all affairs) go up to Him, on a Day, the space whereof will be (as) a thousand years of your reckoning.

(16) On the Day that Allah will raise them all up (again) and show them the Truth (and meaning) of their conduct. Allah has reckoned its (value), though they may have forgotten it, for Allah is Witness to all things.

(17) Soon will his account be taken by an easy reckoning,