Mathematical Formula & Method
Tip Calculator Formula
Tip = Bill × (Tip % / 100) | Per Person = (Bill + Tip) / Number of People
Worked Examples & Step-by-Step Solutions
$85.50 bill with 18% tip split among 3 people
- Tip Amount: $85.50 × 0.18 = $15.39.
- Total Bill: $85.50 + $15.39 = $100.89.
- Each Person Pays: $100.89 / 3 = $33.63.
How to Use the Tip Calculator
- Enter bill total, choose tip %, and enter party size.
Important Assumptions & Unit Conventions
- Does not split unequal items between diners.
Frequently Asked Questions
What is the standard tip at restaurants?
In the United States, 15%–20% is standard; in many European and Asian countries, service charge is already included or tipping is optional.
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