This is all the space we would need if everyone in the world stood side by side

The population of the world is estimated at present to be around 7.4 billion.

If you got everyone in the world to stand in a metre squared each, and fit this into a square area of roughly 7,400km, you'd barely make a dent in the state of California.

As this relatively cool map showed recently.

We decided to do a version for the UK, and it turns out you cover Hertfordshire and a few surrounding counties.

Some people may have to tread water though.

You can browse it below:

Although interesting, this proves largely nothing. People can't live in only a metre squared.

Oh. Hm.

Anyway, the UN has estimated that by the year 2100 the population will increase to around 11.2 billion.

Although it could be much higher.

The UK's population is expected to slowdown, like many other countries in Europe, as the population growth is expected to occur predominately in developing countries.

More: The world population map with a difference

More: This map of America's regions with the same populations as the UK is eye-opening