Population Growth Rate Calculator
🌍 Ecology. Use the Population growth rate formula to find change in population, births, immigration, deaths, emigration: pick the value you want, type the others, and the answer updates as you go.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Change in population | no unit |
| Births | no unit |
| Immigration | no unit |
| Deaths | no unit |
| Emigration | no unit |
Worked example
Find the change in population when Births = 80, Immigration = 10, Deaths = 50, Emigration = 10.
Using growth = (births + immigration) - (deaths + emigration): Change in population = 30.
Frequently asked questions
What is the formula for Population growth rate?
growth = (births + immigration) - (deaths + emigration).
What do the letters stand for, and what units are used?
Change in population, Births, Immigration, Deaths, Emigration.
How do you calculate change in population?
Put the values into growth = (births + immigration) - (deaths + emigration). For example, with Births = 80, Immigration = 10, Deaths = 50, Emigration = 10, change in population = 30.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (change in population, births, immigration, deaths, emigration) and fill in the others: it rearranges the formula for you.
