Age calculator
Your exact age on any date, from your DOB.
Open toolSales tax calculator
Add tax or extract tax from an inclusive price.
Your input stays in this browser. No account needed.
THE QUICK GUIDE
How to use sales tax calculator
Enter an amount and tax rate; choose add or extract.
How it works
Inclusive amount = net amount × (1 + rate ÷ 100).
A useful example
100 plus 10% tax is 110.
Good to know
Enter your applicable rate; this tool does not determine tax rules.