Herd Immunity Calculator

Measure what is measurable, and make measurable what is not so.

Galileo Galilei

Life expectancy (years) 70
Immunisation coverage 91%
Vaccine efficacy (%)

Effectively vaccinated population 81%
Effectively unvaccinated population 19%
Age of the last vaccination

Immunisation duration (years)

Last protected age 21
Unprotected life years 49
Protected population (pre PPC) 24%
Unprotected population (pre PPC) 76%
PPC (Population Pyramid correction) (%)

Protected population 28%
Unprotected population 72%
Herd immunity treshold 92%