Tip Calculator
The Tip Calculator computes the tip on a bill, the total including tip, and the per-person share when splitting among any number of people.
What this means
A tip is a percentage of the bill you leave for service. Whether you're eating out or splitting with friends, the math is the same: bill × tip% = tip, then divide by people.
How we calculate it
Formula
Tip = bill × tip%; total = bill + tip; per person = total ÷ people.Worked example
A $80 bill with 18% tip split 3 ways:
- 1Tip = 80 × 18% = $14.40
- 2Total = $94.40
- 3Per person ≈ $31.47
Important assumptions
- The tip applies to the bill before tax.
- Everyone shares the total equally.
Frequently asked questions
What tip percentage should I leave?
15–20% is the common range for good service in the U.S., but adjust for service quality, local norms and whether gratuity is already included.
Should I tip on tax?
Opinions differ; many compute the tip on the pre-tax amount. The difference is usually a few cents per dollar and rarely matters.