How old was I on a specific date?
To calculate your age on any past or future date, compare that date with your birthday and adjust for whether your birthday had already occurred in that calendar year.
Use the interactive tool
The related EgoTools page calculates the personalised result from your own inputs and labels estimates separately from exact calendar calculations.
Why the distinction matters
Some results are exact calendar arithmetic. Others are estimates or entertainment scores. EgoTools tries to make that obvious instead of presenting every number with false precision.