World Population Growth: 8 Billion at 1% for 50 Years
At 1% annual growth, the world population of 8 billion would reach approximately 13.2 billion in 50 years.
How to use this tool
- Enter initial population, annual growth rate and years in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your final population and the full breakdown beneath it.
Project future world population starting from 8 billion at a 1% annual growth rate over 50 years.
Frequently asked questions
- What is the difference between continuous and annual compounding?
- Continuous uses e^(rt); annual uses (1+r)^t. For small r they are close, but continuous growth is slightly faster and is the standard in population biology.
- Can growth rates be negative?
- Yes — a negative rate models population decline or any shrinking quantity.