About the sales tax calculator
Estimate sales tax and total purchase price using a rate you enter for your location. This tool is designed to provide a quick estimate with clear, easy-to-understand results. It runs in your browser and does not require you to create an account.
How the calculation works
Tax = pre-tax price × tax rate ÷ 100; total = price + tax.
Example
At an illustrative 8% tax rate, a pre-tax price of 100 becomes 108. Actual rates vary by location and product.
When should you use it?
Use this calculator for planning, checking estimates, comparing options, and understanding the effect of different input values. Results depend on the information you enter and may not include fees, exceptions, or local rules that are not explicitly represented.