Hello and welcome! Go ahead and create an account to get a sense of what VaxCalc offers. When you're ready, choose the plan that best fits your needs:

Freedom Plan

$8 a month

billed annually at $96

Day Pass

$24

good for 24 hours


Chris has incredible knowledge in many areas. The facts about ingredients in flu shots and other vaccines is astonishing. Your work is greatly appreciated.

- Nancy B., Virginia

Freedom Plan costs $8 a month, billed annually at $96 for the year, provides 24/7 unlimited access to VaxCalc research, calculations, vaccination planning and all other resources including regular improvements - for an entire year.

Day Pass is for anybody who isn't sure when they will use VaxCalc again but needs full access right now for just a day. It costs $24, good for 24 hours.

Enjoy the rest of your !