About Piranhas

Piranhas is a book price comparison tool.

Search through seven Amazon country-specific stores, the Book Depository, and Wordery to find the cheapest source for your books. Piranhas does all the necessary currency conversions, so you don't have to.

Currently results are returned from the following stores:

This product includes GeoLite2 data created by MaxMind, available from maxmind.com.

Exchange Rates

Currency exchange rate data is provided by Open Exchange Rates. The rates used on this site may differ from those used by the supported stores. Current exchange rates rates are listed below.

USD 1.00 0.93 0.80 1.31 1.34 111
EUR 1.08 1.00 0.87 1.41 1.45 120
GBP 1.24 1.15 1.00 1.62 1.67 138
AUD 0.77 0.71 0.62 1.00 1.03 85
CAD 0.75 0.69 0.60 0.97 1.00 83
JPY 0.90 0.83 0.72 1.18 1.21 100


Does using Piranhas cost money?
No.  Piranhas is complete free to use and will remain so. There is no sign up or billing step on Piranhas, just search for any book you like.
If Piranhas is free, how do you keep it running?
It doesn't cost very much at all to host and we get a small affiliate fee every time you buy a book via Piranhas.
Why are the searches so slow?
Unfortunately it just takes that long for the Piranhas server to talk to the stores' servers.
Why are some prices or books missing from the results?
Only books returned by Amazon's search are shown on the results page. Some books may also have different editions available in different countries and Piranhas might not be able to match them up.
Why was the price different when I actually ordered the book?
All our book prices come directly from the stores so it's possible that prices will, for some reason, vary in the store.
Why were the shipping charges wrong for my order?
Shipping charges are estimated based on information from Amazon. If you think we got it wrong, please let us know via the feedback page Please make sure to include the details of the book in question (Title, ISBN, and which store) and the destination country.
I encountered a problem and wish to report it!
That wasn't actually a question, but please let us know what happened via the feedback page


As a general rule Piranhas.co does not collect personally-identifiable-information. For more details see the privacy policy.