Frequently Asked Questions

In the US, 15-20% is standard for sit-down restaurants. 15% for adequate service, 18% for good service, and 20%+ for excellent service. For takeout, 10% is common.
Multiply the bill by 0.20. Quick trick: find 10% (move the decimal left) and double it. For a $50 bill: 10% = $5, so 20% = $10.
It's generally recommended to tip on the pre-tax amount, though tipping on the total (including tax) is also common and considered generous.
Calculate the total (bill + tip), then divide by the number of people. Each person pays the same amount including their share of the tip.
For food delivery, 15-20% is standard (minimum $3-5). For large orders or bad weather, tip more generously.

Quick Tip Guide

10% = move decimal left. 15% = 10% + half of 10%. 20% = 10% × 2. 25% = divide bill by 4.