https://www.ato.gov.au/Calculators-and-tools/Tax-withheld-calculator/Individual-Non-business-Calculator.aspx
http://www.anz.com.au/personal/travel-foreign-exchange/currency-converter/
http://www.paycalculator.com.au/
https://www.moneysmart.gov.au/tools-and-resources/calculators-and-apps/mortgage-calculator