RJT Date Calculator - An aid for Family Historians

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The date calc program exists to assist Family Historians calculate dates from any two of the three following elements

  • Birth Date
  • Event Date
  • Age at Event


The program is developed in Delphi and comes in several versions, please download the correct one for your operating system, most people should use Datecalc 2.3
To Download the program please select the format from below.

Please feel free to send me feedback just complete the comment form or e-mail your comments to jane@taubman.org.uk

What you can use date calc for

  • From the Age shown on the census and the census date an approximate birth year can be calculated.
  • From a wedding date and birth date an age at marriage can be calculated.
  • From a death age and date on gravestone an approximate birth date can be calculated.
View more detailed instructions

RJT Date Calculator - An aid for Family Historians is free and will aways be so, but if you find it useful perhaps, you might consider making a donation to it's author. Just click on the button to send a few pounds via Paypal.

or just send me a message via the feedback form letting me know you found it useful.

Click here to learn about my family history research