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 1000 : 1 look like?

Length of South America (North to South) (7,150 km)...

: Length of the longest canal tunnel (Rove Tunnel in France) (7.12 km) ...

Length of the Amazon River (6,990 km)...

: Length of the longest canal tunnel (Rove Tunnel in France) (7.12 km) ...

Length of the Kentucky Derby horse race (2 km)...

: Length of a `king-size` bed (1.98 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.

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