Enter the ratio you're interested in:

Try ratios like: '1 : 10', '5 to 6', '10' (will be taken as 10 : 1), '1000000'

What does a ratio of 5 : 1 look like?

Length of the USA / Canada border (8,890 km)...

: Length of the Limpopo River (1,800 km) ...

Height of the Angel Falls (Venuzeula) (979 m)...

: Height of the Gateway Arch in St Louis (192 m) ...

Distance from London to New York (5,580 km)...

: Length of the Fastnet yacht race (1,126 km) ...

Length of an iPhone 6 (158.1 mm)...

: Length of a standard 4 x 2 Lego brick (31.8 mm) ...

Highest altitude reached by a single kite (4.88 km)...

: Height of the Angel Falls (Venuzeula) (979 m) ...

Read all about it!

Is That a Big Number? - the book - is now available from all good booksellers.

"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine

Click here to learn more about it.

Click here for Podcast: Andrew Elliott interviewed for New Books Network.

http://itabn.tumblr.com/post/138631317782/this-website