Tip Calculator
A tip calculator instantly works out the gratuity on a restaurant bill and splits the total among any number of people. Pick a preset percentage — 10%, 15%, 18%, or 20% are the most common — or enter a custom rate, and the tool shows the tip amount, the grand total, and each person's share. This removes the awkward mental math at the end of a meal and prevents rounding disputes when a group splits the check.
Tipping norms vary widely by country. In the United States, 15-20% is customary for table service; in Brazil, a 10% service charge is typically suggested on the bill and is optional by law; in much of Europe and Japan, tipping is modest or not expected at all. Because the calculator lets you set any percentage and any number of people, it adapts to local custom, delivery orders, bar tabs, and service charges alike.
How it works
The tip is calculated as tip = bill × (percentage ÷ 100), and the total as total = bill + tip. When splitting, each person pays total ÷ number of people. For example, a $120 bill with an 18% tip yields a $21.60 tip and a $141.60 total; split four ways, each person pays $35.40. Some diners prefer to tip on the pre-tax subtotal, which the same formula handles by entering that subtotal as the bill.
Use cases
- Calculating a 15-20% restaurant tip and splitting the check evenly among friends
- Adding the customary 10% service charge to a bill in Brazil
- Working out a fair tip for delivery, taxi, or hairdresser services
- Comparing the total cost at different tip percentages before paying
Frequently asked questions
How much should I tip at a restaurant?
In the United States, 15-20% of the bill is standard for table service, with 18% a common middle ground. In Brazil the suggested service charge is 10% and legally optional. In many European countries rounding up or leaving 5-10% is enough, and in Japan tipping is generally not practiced.
How do I calculate a 20% tip quickly in my head?
Find 10% by moving the decimal point one place to the left, then double it. On a $64 bill, 10% is $6.40, so 20% is $12.80. For 15%, take the 10% value and add half of it again: $6.40 + $3.20 = $9.60.
Should I tip on the total before or after tax?
Etiquette guides generally say the pre-tax subtotal is the correct base, since tax is not part of the service. In practice many people tip on the after-tax total for simplicity, which results in a slightly larger tip. Either approach is acceptable; just be consistent.
How do I split a bill with tip between several people?
Add the tip to the bill first, then divide by the number of people: (bill + tip) ÷ people. For a $150 bill with 18% tip, the total is $177, so five people pay $35.40 each. Splitting after adding the tip ensures the gratuity is shared fairly.
Is the 10% service charge mandatory in Brazil?
No. Under Brazilian law (Lei 13.419/2017 regulates its distribution), the 10% shown on the bill is a suggestion, not an obligation, and you can ask for it to be removed. That said, it is customary to pay it when service was satisfactory, as it typically supplements staff wages.