Birth and Death Date Calculators
Online Birth and Death Date Calculators
| Name | Website | Description |
|---|---|---|
| Date Calculator: Add to or Subtract From a Date | Timeanddate.com | Can be used for calculating birth from tombstones, death records when exact age is given in yr/mo//dd also a Duration Between Two Dates age calculator |
| Age Calculator | Rootsweb | Has 4 various calculators to determine birth date and age including the **8870 method |
| Ancestor Search Age Calculator | searchforancestors.com | Used when you want to determine the date of death from a birth date and exact age |
| Tombstone Birthday Calculator | searchforancestors.com | This calculator allows Julian calendar or Gregorian dates to help you calculate birth date when the tombstone only gives the date of death and the exact age. This calendar also allows for a 30 day month or **(8870) method |
| Birth Date Calculator | longislandgenealogy.com | Used to help you calculate birth date when the tombstone only gives the date of death and the exact age |
Calculating Dates
Having exact birth and death dates for our ancestors helps us confirm our finds, as well as better identify them in other records. However, finding precise dates can be much more difficult as we research further back in time. We may only have our ancestor’s age (sometimes in the format of years/months/days) at time of death. Or, we may wish to know how old an ancestor would be from their birth date. Using a date calculator can help us with the addition and subtraction necessary to discover our a more precise date. The date calculators listed above can help you determine that information.
Records that may give an exact age at death and a death date can be found on:
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