Tip Calculator

A tip calculator has three jobs: work out the tip, add it to the bill, and split the result between the people at the table. The first two are one multiplication and one addition. The third is where most tools cut a corner, because money comes in whole cents and a total rarely divides evenly. This one handles all three, lets you choose whether the tip is worked out on the subtotal before tax or on the total with tax, and settles the odd cent so every share adds back to the bill exactly.

How the tip is worked out

The tip is the bill multiplied by the tip percentage written as a decimal, so 20% is 0.20 and 18% is 0.18. An 18% tip on a $26.50 check is $26.50 × 0.18 = $4.77, for a total of $31.27. The total can also be found in one step by multiplying the bill by 1 plus the rate, so $26.50 × 1.18 gives the same $31.27. The calculator rounds the tip to the nearest cent once, then adds it, so the total you see is always the bill plus the tip you see, never a figure that drifts a cent away from it.

For a quick check without a phone, move the decimal point one place left to get 10%. On an $86.40 bill that is $8.64. Double it for 20% ($17.28), or add half of it again for 15% ($12.96). Any percentage can be built the same way: 18% is 20% less a tenth of 20%.

Before tax or after tax

Etiquette guides, the Emily Post Institute among them, put the tip at 15% to 20% of the pre tax bill. Sales tax is not part of the service, so there is no rule that says to tip on it. Plenty of people tip on the printed total anyway, simply because it is the number on the slip. Neither is rude. The difference is small but real, and it grows with the tax rate.

So the tax gets a field of its own here. Enter the bill as printed and the tax it includes, and the switch decides the base. Take an $86.40 bill that includes $6.40 of tax. At 20% on the $80.00 subtotal the tip is $16.00. At 20% on the full $86.40 it is $17.28, which is 21.6% of the food and drink. The extra $1.28 is exactly 20% of the tax. The Tax Foundation puts the average combined state and local sales tax at 7.53% at midyear 2026, so tipping 20% after tax works out to about 21.5% of the meal on an average bill, and about 22% in Louisiana, where the average combined rate is 10.13%.

The same logic applies to a discount. If a coupon, a voucher or a gift card cut the bill, the server still carried the full meal, so tip on the price before the discount and use the discounted figure only for what you pay.

What people actually tip in 2026

The advice and the behaviour do not quite line up, and it helps to see both. Toast, whose payment platform covered about 171,000 restaurant locations at the end of March 2026, reported an average card tip of 19.3% at full service restaurants in the first quarter of 2026, 15.8% at quick service counters, 13.7% on takeout and 18.8% across all restaurant types. The full service figure has sat between 19.1% and 19.4% for two years, so it is stable rather than rising. By state it ran from 22.1% overall in Delaware to 17.3% in California. Those numbers leave out cash tips entirely.

Surveys paint a more restrained picture. In Pew Research Center's survey of 11,945 adults from August 2023, 57% said they would tip 15% or less for an average sit down meal, including 2% who would leave nothing, and 37% named 15% as their usual tip. Bankrate's 2025 survey of 2,445 adults found 35% typically tip 20% or more at a sit down restaurant, down from 37% a year earlier, with a steep age gradient: 16% of Gen Z, 30% of millennials, 40% of Gen X and 49% of baby boomers. An Omni Calculator survey of 500 adults in February 2026 found 45% most often leave 20% to 22%.

Put together, 15% is the floor most people recognise, 18% to 20% is what card screens and most diners land on for table service, and above 20% is a choice rather than a norm. The slider on this page runs from 0% to 30% in half percent steps, and the box next to it accepts anything up to 100% for the rare case that calls for it.

Tipping fatigue and the tip screen

Most of the recent change is about where tips are asked for, not how much. Pew found 72% of adults say tipping is expected in more places than five years before. In Bankrate's 2025 survey 41% said tipping culture is out of control, up from 35%, and 38% were annoyed by pre entered tip screens. In the February 2026 Omni survey 62% said they are asked to tip more often than two years earlier, and 40% said they avoid some businesses to escape the prompt. The practical answer is to separate table service, where a tip is part of the server's pay, from counter and takeout prompts, where it is optional. The table under the calculator sets the etiquette guidance beside the share of people who always tip for each service.

Splitting the bill so it adds back to the cent

Divide $118.00 between three people and each owes $39.3333, which nobody can pay. Round every share to $39.33 and the table hands over $117.99, a cent short. Round every share up to $39.34 and it pays $118.02. The fix is to work in whole cents: divide the total in cents by the number of people, give everyone the whole number of cents that results, and hand the leftover cents out one at a time. The leftover is always fewer cents than there are people, so nobody ever pays more than one cent above anyone else. That is what the line under the result tiles reports: for $118.00 over three, one person pays $39.34 and two pay $39.33.

A larger table makes the point better. A $243.80 bill with $18.80 tax, tipped 22% on the $225.00 subtotal, comes to $293.30. Split six ways, two people pay $48.89 and four pay $48.88, and the six shares add up to $293.30 exactly. The same whole cents method is what a ratio calculator uses when an amount is shared unequally.

Rounding up per person

Many groups skip the cents altogether and each pay a round number. The fourth tile shows the share rounded up to the next whole dollar, euro or pound, and what that does to the tip. Four people splitting $102.40 owe $25.60 each. If everyone pays $26, the table pays $104.00, the tip rises from $16.00 to $17.60, and on the $80.00 subtotal that is 22% instead of 20%. On a party of twelve at $1,463.20 the same rounding adds only 80 cents to the tip, because the rounding gap is spread over a larger bill. Seeing the real percentage stops a small rounding gesture from quietly turning into a much larger tip on a cheap lunch.

Service charges and automatic gratuity

Check the bill before adding anything. Many US restaurants add a service charge to large parties, typically about 18%, and a percentage added on top pays for the service twice. The difference also matters to the worker. The federal No Tax on Tips deduction lets eligible workers deduct up to $25,000 of qualified tips a year for tax years 2025 to 2028, phasing out above $150,000 of modified adjusted gross income ($300,000 for joint filers), but a non negotiable amount such as an automatic gratuity does not count as a qualified tip. Social Security and Medicare still apply to tips either way.

Tipping outside the US

Customs vary more than the percentages suggest. Canada sits close to the US at 15% to 18% when food is served, and Mexico at 10% to 15% on the pre tax amount. In the UK a service charge of 12.5% is common, and since 1 October 2024 the Employment (Allocation of Tips) Act has required that tips and service charges reach staff in full. France builds service into menu prices by law, so a little extra, up to about 5%, is for excellent service only. Brazil adds a 10% service fee that is legally optional and is itself the tip. Germany rounds up, usually 5% to 10%, by telling the server the total you want to pay. Japan does not tip at all. For those, set the slider to the round up or to zero, or use the currency switch and the rounded tile to see what each person hands over. To check a percentage by hand, the percentage calculator works any rate forwards or backwards.