Tip Calculator & Bill Splitter
Compute tip amount and split a bill evenly between any number of people.
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Frequently asked questions
Is my data sent to a server?
What formula does this use?
How much should I tip at a restaurant?
What is the difference between a tip and a service charge?
Are there countries where tipping is considered rude?
What does the per-person result mean if it shows an uneven cent?
I am travelling abroad — how do I know the expected tip?
Can I use a custom tip percentage?
What is a common mistake when splitting a bill?
Does this work for currencies other than dollars?
About Tip Calculator & Bill Splitter
Tipping is the practice of voluntarily giving a server or service worker a sum above the billed amount as a recognition of good service — but what constitutes appropriate, expected, or even polite varies enormously around the world. In the United States, tipping is deeply embedded in the service economy: because federal law permits tipped workers to be paid as little as $2.13 per hour, with tips making up the difference to at least minimum wage, a 15–20% tip is effectively a social obligation rather than a voluntary gesture. The etymology of the word "tip" is debated — one popular theory traces it to a 17th-century London coffeehouse acronym "To Insure Promptness," though most linguists consider this a folk etymology with no solid historical basis. The word more likely derived from the thieves' slang "tip," meaning to give or pass something small.
This calculator is useful whenever you are dining out, splitting a taxi ride, or settling any bill shared between a group. Common scenarios include calculating a 20% tip quickly without mental arithmetic, splitting a complex restaurant bill evenly among friends, or determining the exact per-person cost including a custom gratuity. It is also handy when travelling to countries with unfamiliar tipping norms, where you want to calculate an appropriate amount without awkwardly counting coins at the table.
Everything runs locally in your browser — no data is sent anywhere. Enter the bill total, select or type a tip percentage, and specify the number of people splitting the bill. The calculator shows the tip amount, the total bill including tip, and the per-person share. The underlying arithmetic uses full floating-point precision; rounding to two decimal places for display purposes occasionally produces a one-cent discrepancy in the split, which is shown explicitly so the group can decide who covers the difference.
A common mistake is applying the tip to the post-tax total when dining in countries like the US, where tax is added at the point of sale. Many etiquette guides suggest tipping on the pre-tax subtotal; others argue tipping on the full total is more generous and simpler. Either approach is valid — what matters most is being consistent and appropriately recognising good service. These results are for informational purposes only.
The Surprisingly Contested History of the Tip
The word "tip" in the sense of a gratuity appears in English writing from at least the early 18th century, used in cant (criminal slang) to mean giving or passing a small sum. The popular acronym story — that "TIP" stood for "To Insure Promptness" and originated in 18th-century coffeehouses where patrons dropped coins in a box — is almost certainly a fabrication. The acronym does not appear in period sources, and linguists point out that "to ensure" (not "insure") would be the correct word regardless. The true etymology is murky, but most scholars believe it evolved from existing slang without a neat founding story.
Tipping as a widespread social practice expanded dramatically in the late 19th and early 20th centuries, partly driven by the hotel and railway industries in the United States. Interestingly, tipping met fierce resistance from American progressives at the time, who argued it created an undemocratic servant class and demeaned workers who depended on the whims of strangers for their income. Several US states actually banned tipping between 1909 and 1926, viewing it as a form of bribery. Those laws were all eventually repealed, and tipping culture accelerated after Prohibition and the expansion of the restaurant industry in the 1930s.
The economics of tipping have been studied extensively by researchers, with counterintuitive findings. Studies by Cornell professor Michael Lynn found that tip size correlates only weakly with objective service quality — customers tip more when servers crouch to eye level, introduce themselves by name, touch the diner's arm briefly, or draw a smiley face on the bill. Weather, the server's physical appearance, and even the number of items on the menu all influence tip amounts more than service speed. This has led many economists and restaurant owners to advocate for service-included pricing as a more equitable alternative to the tipping system.