This guide to understanding how much and when to tip in the United States will help demystify the bizarre and antiquated tipping culture, help you calculate the appropriate gratuity amounts, and make sense of why the amount on your bill is different from listed prices in spas, hotels, restaurants, salons, cafés, cruise ships, and more. Whether you’re a US citizen trying to wrap your head around tipping, or you’re visiting for the first time and don’t want to offend anyone, this guide will go through practically every scenario where tipping is involved, or isn’t involved, and will help you ensure you’re giving the correct amount.