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Tip Calculator | Compute Tip, Split Bills, and Totals

A tip calculator works out how much to tip on a restaurant bill, who owes what when splitting between guests, and the per-person total — including tax. It applies the percentage to the pre-tax subtotal (the standard convention in the US), supports custom tip rates, and rounds to a clean per-person figure.

Last updated: June 2026 · Free · No sign-up required

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Quick reference

Typical US tip on a pre-tax bill:

ServiceTip %$50 bill$100 bill
Minimum / poor10%$5.00$10.00
Standard sit-down18%$9.00$18.00
Good service20%$10.00$20.00
Excellent25%$12.50$25.00

restaurant Pre-tax tipping

US convention: tip is calculated on the pre-tax subtotal. The calculator follows this by default but you can override it.

group Bill splitting

Set the number of guests and see exactly what each person owes — including their share of tax and tip.

attach_money Round per person

Round each person’s share up to the nearest dollar so the table is paying a clean number, not 38¢ change.

tune Quick presets

15 / 18 / 20 / 22% buttons for instant standard tips, plus a custom field for unusual situations.

Interpretation guide

How much to tip by setting:

SituationCustomary tip
Restaurant server15–20% of the pre-tax total
Bartender$1–2 per drink or 15–20%
Food delivery15–20% (min ~$3–5)
Taxi / rideshare10–15%
Large party (6+)Check for an auto-gratuity already added

lightbulb A real-world example — $87 dinner bill, 4 people

You and three friends had dinner. Pre-tax bill: $87. You want to leave 20% on the post-tax amount (in a 7.5% tax state) and split equally.

Result: Per-person total: $28.07. Tip on the post-tax amount = $18.71. With tax, the meal cost $93.53; tip brings the total to $112.24, divided 4 ways.

What this means: In the US, 18–22% is standard for sit-down service in 2026 (15% used to be the floor; current cost-of-living and tipping inflation have lifted that). Round up to the nearest dollar to keep change-handling simple. In Europe, 5–10% is standard and tax is already in the menu price.

Formula & methodology

Formula: Tip = Bill x (Tip% / 100); Total = Bill + Tip; Per person = Total / People

The Tip Calculator is built on a well-established calculation method. It uses the formula Tip = Bill x (Tip% / 100); Total = Bill + Tip; Per person = Total / People to turn your inputs into a reliable result. A tip calculator works out how much to tip on a restaurant bill, who owes what when splitting between guests, and the per-person total — including tax. It applies the percentage to the pre-tax subtotal (the standard The steps are shown on the page so you can follow the reasoning from input to output.

The calculator multiplies your bill by the chosen tip percentage, then divides the grand total by the number of people for an even split. US convention tips on the pre-tax subtotal, though many people tip on the total for simplicity. Use the rounding option to settle on a clean per-person amount.

What is the Tip Calculator?

The Tip Calculator is a free, browser-based finance calculator tool that helps you. Tip calculator works out how much to tip on a restaurant bill, who owes what when splitting between guests, and the per-person total — including tax. It appli. Instead of working through the math by hand or in a spreadsheet, you enter your values and the calculator returns an accurate result instantly — while still showing the formula and the steps so you can verify the reasoning. It is designed for quick everyday use: no sign-up, no installation, and everything runs locally in your browser for complete privacy.

How to use the Tip Calculator

  1. Enter the required values into the input fields.
  2. Press the calculate button — the result appears immediately, updated live as you change any value.
  3. Read the step-by-step breakdown below the result to see exactly how the calculation was performed.
  4. Use the interpretation guide to understand what the result means for your situation, and try different inputs to see how they change the outcome.

How to use the Tip Calculator

Enter the bill amount, the tip percentage you want to leave — commonly 15–20% — and the number of people splitting the bill, then press calculate. The tool applies Tip = Bill × (Tip% ÷ 100), Total = Bill + Tip, and Per person = Total ÷ people. You can choose whether the tip applies to the pre-tax or post-tax amount. For an $87 bill with 20% tip split among four diners, each person pays about $26.10 including the tip.

Interpreting your result

The per-person figure is what each diner actually contributes, and it depends on your tip-base choice: tipping on the post-tax amount adds the tax into the tip base, which is generous but common in the US. Service quality, local convention, and group size all influence the right percentage — 15% for standard service, 18–20% for good service, and more for exceptional service or small bills. The tool also helps with holiday tipping, where a flat amount rather than a percentage is the norm. Whatever the percentage, the split math is what the calculator guarantees.

Common mistakes to avoid

The most common error is tipping on the tax-inclusive amount without intending to — if the bill includes tax, decide deliberately whether the tip percentage applies before or after tax. Second, splitting the tip and the bill inconsistently: the per-person share must include the tip, and the tool does that. Third, forgetting the tip on large groups where an automatic gratuity is already added — check the bill before adding another 20% on top. Finally, miscalculating the split when diners ordered different amounts — the equal-split mode assumes everyone contributes equally.

Tips for best results

Use the post-tax option when you want to be generous; pre-tax when you want the exact service percentage. For large groups, check whether the restaurant added an automatic gratuity before entering your own tip. When splitting unevenly, note that the equal-split mode is for fair sharing; for different orders, adjust individually. For cash tips, round the total up to a clean number — the calculator shows the exact figure and you round at the table. Holiday tips for service providers are usually flat amounts: one session's cost or a week's pay for year-round helpers.

Authoritative source: U.S. Department of Labor

Frequently asked questions

How much should I tip at a restaurant?
The Tip Calculator is free, private, and accurate: it runs entirely in your browser (no uploads, no accounts), applies the standard calculation, and explains each step so you can verify the result. A tip calculator works out how much to tip on a restaurant bill, who owes what when splitting between guests, and the per-person total — including tax. It applies the percentage to the pre-tax subtotal (the standard convention in the US), supports custom tip There is no limit on usage, and it works on any device.
Should I tip on the pre-tax or post-tax amount?
Etiquette generally bases the tip on the pre-tax amount — the service charge on the food and drink, not the tax. Tipping on the post-tax total is more generous but adds a few dollars on large bills. The calculator offers both modes; choose post-tax if you prefer to tip on the full amount you pay.
How do I split a bill and tip evenly?
Enter the required values into the input fields and press the calculate button. The tool applies the formula Tip = Bill x (Tip% / 100); Total = Bill + Tip; Per person = Total / People and returns the result with a short explanation of each step, so you can check the working yourself.
Do I tip on delivery if there's a delivery fee?
Yes — the delivery fee goes to the restaurant or platform, not the driver, so a tip on the order total is expected in addition to it. A common range is 10–20% of the order, or $3–$5 minimum for small orders. The calculator applies your chosen percentage to the order amount; if the fee is large, consider tipping on the pre-fee total.
Is an 18% gratuity automatically added for large groups?
Many restaurants automatically add 15–20% gratuity for parties of 6 or more — check the bill before tipping extra, or you may double-tip. The automatic gratuity is a service charge that replaces the discretionary tip. If it is already included, no additional tip is required, though rounding up for good service is always appreciated.
What does the Tip Calculator do?
A tip calculator works out how much to tip on a restaurant bill, who owes what when splitting between guests, and the per-person total — including tax. It applies the percentage to the pre-tax subtotal (the standard convention in the US), supports custom tip. The calculator takes your inputs, applies the standard calculation, and returns a clear result so you can make an informed decision without doing the math by hand.
What formula does the Tip Calculator use?
It computes Tip = Bill × (Tip% ÷ 100), Total = Bill + Tip, and Per person = Total ÷ people. Enter the bill, tip percentage, and number of diners, and choose whether the tip applies to the pre-tax or post-tax amount. For an $87 bill with 20% tip split four ways, each person pays about $26.10.
Is the Tip Calculator free and private?
Yes — the Tip Calculator. There is no sign-up, no paywall, no trial, and no limit on how many calculations you can run. CalcaTools covers its costs with non-intrusive display advertising, so the calculator itself never asks for payment or restricts any feature.
How accurate is the Tip Calculator?
The Tip Calculator applies the standard formula: Tip = Bill x (Tip% / 100); Total = Bill + Tip; Per person = Total / People. It is tested against published worked examples before launch and uses native double-precision arithmetic, so results are accurate to typical precision for the values you enter — with no intermediate rounding that could distort the answer.

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