Mean incubation period of COVID-19 ranges from 5.6 to 6.7 days

The investigators found in a review article of 7 studies (n = 792), that mean incubation period ranges from 5.6 to 6.7 days and the 95th percentile is 12.5 days when the mean age of patients is 60 years, increasing 1 day for every 10 years.

Read more right here:
Mean incubation period of COVID-19 ranges from 5.6 to 6.7 days