The Bulls & Goats Calculator calculates how many public sacrifices would have been offered on your behalf if the Jewish temple were around today and we were under the Old Covenant. All the various sabbaths, holy days, festivals, etc. are taken into consideration. It does not factor in free-will offerings — only scheduled, public sacrifices offered on behalf of all people. Simply enter in your birth date below and click the “Show Me” button. You can leave the “Until” field as-is unless you want to play around with dates.
ESV Study Bible for the excellent public sacrifices chart
Moses’ Tabernacle for the detailed info on the sacrifices
Daf-a-Week for the bulk of the Hebrew Calendar calculations
Judaism 101 for the in-depth review of the Hebrew calendar
Flameia Design for the cool animal icons