Tip calculator
Enter the bill, pick a tip percentage and say how many people are paying to see the tip, the total and each person's share.
Total with tip
$101.95
$15.55 tip on a $86.40 bill
How to use it
- Enter the amount on the bill.
- Pick the tip percentage. 15% is modest, 18% to 20% is standard for table service in the US, and more for exceptional service.
- Enter how many people are splitting it, if more than one.
- Turn on rounding if you want the total to land on a whole dollar; the tip absorbs the difference and the real percentage is shown.
Worked example
A $86.40 bill with an 18% tip, split between 3 people.
Tip: $86.40 × 18% = $15.55. Total: $101.95. Each person pays $33.98, of which $5.18 is tip.
Rounding up takes the total to $102.00 and the tip to $15.60, which is 18.06%.
How this is calculated
The tip is the bill times the percentage, rounded to the cent. The total is the bill plus the tip, and each person's share is the total divided by the number of people, also rounded to the cent, so a split can come out a cent over or under the total. Rounding up moves the total to the next whole dollar and puts the difference into the tip, then shows the percentage the tip actually came to. Whether to tip on the pre-tax or post-tax amount is a matter of custom; in the US most people tip on the total, and the difference at 18% on a $86 bill in a 8% tax state is about $1.15.
tip = bill × percentage
total = bill + tip
rounded up: total = the next whole dollar, and tip = total − bill
each person pays = total ÷ people, rounded to the cent
Rates, sources and limits
Last reviewed 23 Sep 2026 by the CalcRabbit team. Estimates only, not financial, tax or medical advice.
Frequently asked questions
How much should I tip in the US?
For sit-down restaurants, 18% to 20% is the norm and 15% is the floor for adequate service. Counter service and takeout are optional, commonly 10% or a dollar or two. Delivery is usually 15% to 20% with a minimum of a few dollars. Bartenders get a dollar or two a drink or 15% to 20% of the tab.
Tip on the pre-tax or the post-tax amount?
Either is acceptable; most people tip on the total they see. Tipping on the pre-tax subtotal is also common and defensible, since tax isn't the server's work. On a typical bill the difference is a dollar or two.
What if the bill already includes a service charge or auto-gratuity?
Large parties often get an 18% or 20% gratuity added automatically. Check the bill before adding more; if it's there, you don't owe a further tip unless you want to add for exceptional service.
Why does the split not add up exactly?
Dividing a total into equal cents doesn't always come out whole. $101.95 split three ways is $33.983…, which rounds to $33.98, and three of those make $101.94. Someone pays the extra cent; in practice nobody notices.