# How is the population calculated?

### How is the population calculated?

The natural variation of population is obtained by subtracting the number of deaths from that of births; net migration is the number of immigrants (population arriving in the country) minus the number of emigrants (population leaving the country) — see example below.

### What is the population density of a city?

Suppose a city A is populated by 60,000 people and has an area of ​​nine square kilometers, the population density is 7,500 people per square kilometer.

### How to calculate the population of an area?

Determine the population. Instead of doing a population count yourself, try consulting an up-to-date register for the area in question. Find this information by doing research online.

### What is Population Density?

This article has been viewed 32,853 times. On average, population density is the number of people occupying a given area. This information can be useful to identify the resources needed for the proper development of a given area or to compare different places.

### How to calculate the density of the Earth?

By taking a value of 9.8 for g, we deduce the mass of the Earth: We can deduce the average density: 5517kg/m3. How do you calculate animal population density?