calculation that is based on a careful guess rather than on exact knowledge
by somebody's reckoning
By my reckoning, we have 12,000 clients.
2 [countable usually singular, uncountable]
a time when you are judged or punished for your actions, or when they have results that affect you:
We know that you will not forget their crimes when their day of reckoning comes.
In the final reckoning, the president failed to achieve his major goals.
3 British English
among or not among those who are likely to win or be successful, especially in sport:
He had a knee injury, which put him out of the reckoning.