Interactive Population Projection
This interactive chart shows estimates and probabilistic projections of total world population as published by the United Nations in their 2022 Revision of the World Population Prospects. Use the slider below to see how changes in the fertility rate affect the population projections. Roll over the lines to see the observed or estimated population for a given year. The static lines on the graph indicate the median projection (orange line), 80 percent prediction interval (green lines) and 95 percent prediction intervals (red lines). Visit the UN Population Division for a full explanation of the probabilistic projection model and methodology.