Birth and Death Date Calculators

Online Birth Calculators

 * Tombstone Birthday Calculator at searchforancestors.com - used to help you calculate birth date when the tombstone only gives the date of death and the exact age
 * Ancestor Search Age Calculator at searchforancestors.com - used when you want to know how the exact age of a person from a birth date
 * Date Calculator: Add to or Subtract From a Date at Timeanddate.com - can be used for calculating birth from tombstones or determining exact age of a person from birth date
 * Birth Date Calculator at longislandgenealogy.com - used to help you calculate birth date when the tombstone only gives the date of death and the exact age
 * Age Calculator at Rootsweb - has various calculators to determine birth date and age

Calculating Birth Dates
We all know that having birth dates helps us to complete the information for our ancestors and birth dates many times are much harder to find the further back you go. But many times we at least have the date of death with the age listed in Years-months-days. Or sometimes we wish to know how old a person would be from a birth date. The date calculators listed above can help you determine that information.

Records that give an exact age at death and a death date can be found on:

How it works
The way to use it is to put in the date of death. Subtract the number of Years, Months, and Days, then push the calculate button. The answer is under the lower left corner under the colored box. If for some reason you have the Date of Birth and have the number of Years, Months, and Days when died you would put in Add then calculate the date of death.