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Reproduction number

The reproduction number showed how fast the coronavirus was spreading. The number showed how many people were infected on average by someone who was infected with the corona virus. That is why it was important to monitor the reproduction number.

The reproduction number is no longer updated, the last value is from July 11, 2023.

Last values obtained on Tuesday, 11 July 2023. Is updated on Tuesday.

Source: RIVM

More information and data files

View the Data explained page about Reproduction number

Reproduction number

0.9

0.02 more than than the value of Tuesday, 20 June 2023

This is a calculation of the number of people infected by 1 person with corona. We show the reproduction number from 2 weeks ago, because a reliable calculation of the reproduction number can be made after 14 days.

The reproduction number (R) indicates how fast the coronavirus is spreading. R shows how many people on average are infected by someone who carries the virus. With an R of about 1 the number of infections remains about the same, lower than 1 is a decrease and higher than 1 is an increase.

Reproduction number over time

This graph shows the R-number over time. Data for the last 2 weeks is incomplete, because a reliable calculation of the reproduction number can only be made after 14 days.

Select age group

This graph shows the R number over time. Data for the last 2 weeks is incomplete, because a reliable calculation of the R can only be made after 14 days. Use the keyboard to navigate through the time in the graph. With the left and right arrow keys you can move backwards and forwards in time. Use the left angle bracket < to go back and the right angle bracket > to go forward. With page-up and page-down you make bigger steps. Use the Home key and End key to go to the beginning and end of the timeline.

Reproduction number

All national figures