This is a tool that enables you to enter the net price, gross price or VAT amount, and calculate the other two. This is a more general tool than the UK VAT Calculator that is tailored to UK VAT calculations.
The tool is multi-directional and, therefore, determines the information that needs to be calculated based on which data has been entered.
In more detail, the information that can be entered and/or calculated is:
Associated tool link: http://www.coggit.com/tools/vat_calculator.html