How the math works
Tip = bill × rate / 100. Total = bill + tip.
Example
- Enter the bill.
- Choose a tip percentage.
- Pay the total, or the tip separately.
Catch the catches
- Check whether a service charge is already included before adding another tip.
Questions
Are these calculators free?
Yes. They run in your browser. You do not need an account, and we do not require personal financial data to use them.
Should I treat the result as a bank or store quote?
No. Results are educational math. Merchants, lenders, and tax rules can differ. Verify the live terms before you pay.