How to Calculate a Tip
The basic tip formula, examples, and common mistakes.
Read guide →Learning center
Guides and worked examples.
Learn the formulas behind everyday tips, sales tax and splitting bills.
Tip Before or After Tax?
Compare the two bases using real examples.
Read guide →How to Split a Restaurant Bill
Understand equal versus itemized sharing.
Read guide →How to Calculate Sales Tax
Turn a percentage into the tax you owe.
Read guide →How Much to Tip on $100
See several tip amounts on a $100 bill.
Read guide →Service Charge vs. Tip
Learn why you should check your restaurant receipt.
Read guide →