Tipping in the United States is expected, not optional: servers rely on tips for most of their income. This calculator does the arithmetic and the table math — enter the bill, pick a percentage, split among any number of people, and you are done.
How much to tip
20% is the current standard for good restaurant service, 18% is fine, 25% signals excellent service, and 15% is the floor for acceptable service. Tip on the pre-tax amount if you want to be precise, though few people bother. Tip jars and counter service typically get 10% or loose change.
Beyond restaurants
Bartenders: $1–2 per drink. Hairdressers: 15–20%. Taxi and rideshare: 10–15%. Food delivery: 10–15% or a few dollars. Hotel housekeeping: $2–5 per night. No tip is expected for fast food, self-service, or professional services billed by the hour.
Splitting the bill
Enter the number of diners and the calculator divides both tip and total evenly. If everyone ordered wildly different amounts, the fairest approach is to compute the tip on the shared total and let each person cover their own food — but life is short and the even split is the norm.