by one's calculations

So by my calculation that makes you 90 year old.

By the Government's calculation, the total will be lower this year than during 1990.

About to lose a third of staff by their own calculations.

By my calculations that would be at least three or four weeks.

By my calculation, you and the state will be getting 42 forms from them.

By the group's calculations, Africa needs a million more health workers.

That would have to be very early afternoon by my calculation.

By her calculations, she should reach the village just before dark.

By his calculation it was around the middle of February.

But by his calculations, they are also good value investments.