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 1 : 1 look like?

Length of a Pixel XL smartphone (154.7 mm)...

: Length of USA dollar bill (156 mm) ...

Height of Ulm Minster, Germany (161.5 m)...

: Height of Beachy Head Cliff on the South Coast of England (162 m) ...

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

: Length of the Great Wall of China (8,850 km) ...

Length of a baseball pitch, pitcher to batter (18.44 m)...

: Length of a ten pin bowling lane (18.29 m) ...

Side of a casino-standard dice (19 mm)...

: Diameter of a US 1c coin (19 mm) ...

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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