Public Cloud Pricing Calculators

Public cloud pricing calculators

you can google it but it takes time to find the right one :)
Attached are the three major cloud providers calculators:

How to use AWS monthly calculator and estimate costs:

http://calculator.s3.amazonaws.com/index.html

How to use Google cloud calculator and estimate costs:

https://cloud.google.com/products/calculator/

How to use Azure (Microsoft) calculator and estimate costs:

https://azure.microsoft.com/en-us/pricing/calculator/

Guidelines the for using the calculator:

1. Pay attention to the region you will need the service – pricing vary according to the region.
2. Pay attention to storage redundancy level.
3. Pay attention to read / writes IOps.
4. Pay extra attention to traffic while calculating all features! 
   For example S3 is not only storage, you have in / out traffic.