Money calculator
Tip Calculator
Calculate the tip, the total bill, and each person's share at any tip percentage.
Total with tip
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How to calculate a tip
To calculate a tip, multiply the bill amount by the tip percentage expressed as a decimal. Add the tip to the bill to find the total, and divide the total by the number of people to split it evenly.
Tip formula
Example: 20% tip on a $85 bill split 4 ways
A 20% tip on an $85 bill is $17, making the total $102. Split between 4 people, each person pays $25.50, which includes $4.25 in tip.
Frequently asked questions
How much should I tip at a restaurant?
In the United States, 15% to 20% of the pre-tax bill is customary for table service. Many people tip 18% to 20% for good service and more for exceptional service.
How much is a 20% tip on $50?
A 20% tip on $50 is $10, bringing the total to $60. A quick way to calculate 20% is to take 10% (move the decimal one place left) and double it.
Should I tip on the pre-tax or post-tax amount?
Etiquette guides generally say tipping on the pre-tax amount is acceptable, though many people simply tip on the total for convenience. The difference is usually small.
How do I split a bill unevenly?
Calquo splits the total evenly. For uneven splits, calculate each person's share of the bill first, then apply the tip percentage to each share.
How the tip calculator works
Enter the bill amount, choose a tip percentage, and set how many people are paying. The calculator multiplies the bill by the tip rate to get the tip amount, adds it to the bill for the total, and then divides both figures by the number of people. The 10%, 15%, 18%, 20%, and 25% buttons fill in the most common rates, but you can type any percentage, including decimals such as 17.5%.
Four results update as you type: the total with tip, the tip amount on its own, the total each person owes, and the tip each person is contributing. The bill before tip is shown alongside so you can check the number you entered. Amounts are displayed in US dollars rounded to the nearest cent, and the split is calculated from the unrounded total, so the per-person figure is as accurate as it can be.
Tip and bill-splitting formulas
Take a $64.80 dinner bill with an 18% tip shared by three people. The tip is 64.80 × 0.18 = $11.664, which displays as $11.66. Adding it to the bill gives a total of $76.464, shown as $76.46. Dividing that by three gives $25.488 per person, or $25.49, and each person's share of the tip is 11.664 ÷ 3 = $3.888, or $3.89.
Notice that three people paying $25.49 hand over $76.47, a penny more than the displayed total. That is normal: cents cannot be split three ways exactly, so whoever collects the money ends up a cent or two over or under. On a card machine the server simply enters the full total, so the difference never matters in practice.
How much to tip in the United States
Tipping norms in the US are higher than in most countries because tipped workers can legally be paid a lower base wage. The percentages below are the generally accepted ranges; the calculator's 18% default sits in the middle of the restaurant range.
- Sit-down restaurants: 15% to 20% of the bill, with 18% to 20% now typical in most cities
- Bartenders: 15% to 20% of the tab, or $1 to $2 per drink
- Food delivery: 10% to 15%, with a $3 to $5 minimum for small orders
- Takeout and counter service: optional, commonly 0% to 10%
- Taxis and rideshares: 10% to 20% of the fare
- Hair stylists, barbers, and nail technicians: 15% to 20%
- Large parties of six or more: check the receipt, as many restaurants add an automatic 18% to 20% gratuity
Common mistakes when tipping and splitting a bill
The most frequent error is tipping twice. Many restaurants add a service charge or automatic gratuity for large groups, and some now add a flat percentage to every check. Read the receipt before you enter the bill here; if a gratuity is already included, you can set the tip to 0% and simply split the total, or add a small extra amount if the service deserved it.
Another common mix-up is the base amount. Etiquette guides treat the pre-tax subtotal as the correct base, while most people tip on the grand total because it is the number on the receipt. On a $64.80 bill with 8% sales tax, tipping 18% on the subtotal instead of the total saves about $0.93, so either approach is fine as long as you are consistent. If you want to follow the stricter convention, enter the subtotal as the bill amount.
Finally, remember that the calculator divides everything evenly. If one person ordered far more than the others, run the calculation separately for each share, or calculate the tip on the whole bill and then have each person add their share of it to what they individually ordered.
Quick mental math for tips
When you do not have the calculator handy, start from 10%, which you get by moving the decimal point one place to the left. On a $64.80 bill that is $6.48. Double it for 20% ($12.96), or add half of it back for 15% ($6.48 + $3.24 = $9.72). For 18%, take 20% and knock off a tenth of that figure: $12.96 − $1.30 is about $11.66, which matches the exact answer. Rounding the bill to the nearest dollar first makes the arithmetic easier and changes the tip by only a few cents.
Frequently asked questions
What is a good tip percentage at a restaurant?
In the US, 15% is considered the minimum for acceptable table service and 18% to 20% is standard for good service. Tipping 25% or more is reserved for exceptional service or very small bills.
How do I calculate an 18% tip?
Multiply the bill by 0.18. For a $64.80 bill, 64.80 × 0.18 = $11.66. A shortcut is to find 20% by doubling 10%, then subtract a tenth of that amount.
Do I tip on the tax?
Strict etiquette says to tip on the pre-tax subtotal, but tipping on the total including tax is common and the difference is small. On a $60 bill with 8% tax, tipping 20% on the total adds about $0.96 more than tipping on the subtotal.
Should I tip if a service charge is already on the bill?
No additional tip is expected when an automatic gratuity of 18% to 20% has been added. You can leave a small extra amount for outstanding service, but check whether the charge actually goes to the staff, which restaurants are required to disclose.
How do I split a bill with tip between three people?
Add the tip to the bill first, then divide the total by three. A $76.46 total with tip works out to $25.49 each; one person will pay a cent more or less because the total does not divide evenly.
Is 10% an acceptable tip?
For sit-down dining in the US, 10% is below the accepted range and usually signals a problem with the service. It is common for counter service, takeout, and delivery, where expectations are lower.