Restaurant Tip Calculator
Inputs
| Bill amount | 50 $ |
|---|---|
| Country / region | United States — standard (18%) |
| Tip percentage | 18 % |
| Sales / VAT rate | 0 % |
| Bill includes tax? | Bill is the post-tax total |
| Tip on… | Tip on pre-tax subtotal (US) |
| People splitting | 2 |
| Round per-person amount? | No rounding |
Restaurant Tip Calculator
Calculate tip amount, grand total, and per-person split — with regional tipping guidance for the US, UK, Europe, and Japan.
Inputs
Bill & Tip
Tax & Tip Basis (Advanced)
Split
Results
Enter a value to see results.
Details
The grand total includes the tip. When per-person rounding is on, the rounding delta shows whether the group over- or under-tipped slightly to land on a clean per-person number.
Tipping explained
A tip (or gratuity) is a sum given to a service worker on top of the bill, conventionally expressed as a percentage of that bill. The arithmetic is a single multiplication — tip = bill × percentage — so the substance of a tip calculator is not the math but four conventions that vary by place: what percentage is customary, whether the percentage applies to the pre-tax subtotal or the post-tax total, what happens when a service charge is already on the bill, and how to round when splitting cash.
Calculation
The grand total is the bill plus the tip:
where the tip base is either the pre-tax subtotal or the tax-included total, depending on convention. When the bill amount entered is a post-tax total and a tax rate is supplied, the subtotal is recovered by dividing out the tax: subtotal = bill ÷ (1 + tax rate). Splitting divides the grand total by the number of people, with optional rounding applied either per person or to the grand total before the split.
Regional conventions
The customary percentage and the role of a service charge differ by country. The presets encode the middle of the conventional range for each region — a sanity check, not a rule.
| Region | Typical range | Tip on pre-tax? | Service charge norm |
|---|---|---|---|
| United States (sit-down) | 15–20% | Pre-tax (technically); most just use the post-tax total | Sometimes added for parties of 6+ |
| United States (counter / takeout) | 0–10% | n/a | Rare |
| United Kingdom | 10–15% (discretionary) | n/a | Often included as "optional service charge" |
| France | Round up to the nearest €5 or 5–10% | n/a | "Service compris" — always included |
| Germany / Austria | Round up or 5–10% | n/a | Often included |
| Italy | Round up or 5–10% | n/a | "Servizio incluso" common; "coperto" is a cover charge, not a tip |
| Spain | Round up or 5–10% | n/a | Sometimes included |
| Japan | 0% | n/a | Rare; high-end may add a service charge |
| South Korea | 0% (tipping not customary) | n/a | Service charge sometimes added |
The difference reflects how servers are paid. In the United States a server's base wage is often well below the federal minimum (the "tipped minimum"), with the expectation that tips bring total compensation up to or above the minimum; the tip functions as part of the wage. In the United Kingdom and continental Europe, servers earn the full minimum wage independent of tips, so a tip is a thank-you rather than a wage subsidy. In Japan, tipping at a restaurant is mildly unconventional — cash left on the table may be returned — and any service expectation is built into a printed service charge.
Pre-tax versus post-tax
In the United States, restaurant bills typically print the food/drink subtotal, the sales tax (which varies by state and city — 0% in some places, over 10% in Chicago), and a grand total. The convention is to compute the tip on the pre-tax subtotal, since the tip is for the service rather than a percentage of tax revenue. In practice most diners multiply the percentage by the grand total instead. The difference is small: at 8% sales tax and a 20% tip, tipping on the post-tax amount adds 1.6 percentage points to the effective tip — on a $100 bill, $1.60.
The calculator defaults to the pre-tax basis. Switching Tip basis to "tip on tax-included amount" under the Advanced section computes against the visible total instead.
Service charges
When a bill prints a line called "service charge" (UK, much of Europe, some upmarket US restaurants for parties of 6+), the convention is that the service charge replaces the tip. Adding a further 15–20% on top is discretionary, not socially expected, and in some countries reads as not having noticed the charge.
- "Optional service charge" (UK, common): printed on the bill but technically discretionary. Most diners pay it and add nothing further.
- "Servizio incluso" / "service compris" / "Bedienung inklusive" (Italy / France / Germany): the tip is built into menu prices. Rounding up the bill in cash is appreciated but not expected.
- "Coperto" (Italy): a per-person cover charge for the table setting and bread. This is not a tip — it goes to the restaurant, and a separate gratuity (if any) is on top.
Rounding when paying cash
Splitting a bill to the cent is cumbersome when paying cash, so two rounding strategies are common:
- Round per-person up — each person pays a clean whole-currency amount, and the table over-tips slightly. The over-tip appears as the "Rounding delta".
- Round the grand total to a clean number first, then split exactly. Common in continental Europe — rounding up to the nearest €5 or €10 doubles as the tip.
The calculator supports both directions (up and down) for both strategies. Rounding granularity is one base currency unit ($1 / ¥1 / €1 / £1); coarser granularity (for example, rounding to the nearest ¥100) is a planned addition. No rounding is the natural choice when paying by card, since the terminal handles the cents.
Scope
The tool treats the bill as a single number. It does not separate the food and alcohol subtotals (some US diners tip more on food than on wine), does not handle multiple receipts at one table (split the check first and run the calculator per receipt), and does not model flat-amount tipping for a bartender, coat check, valet, or housekeeping — those are easier as mental arithmetic than as a percentage. The Custom preset covers cases where the percentage is set by hand: delivery, hairdressers, taxi or ride-hail fares, or regional conventions outside the presets. Across those cases the math is the same — bill, tip, split, optional rounding — and only the percentage and the social context change.
Frequently Asked Questions (FAQ)
Should I tip on the pre-tax subtotal or the post-tax total?
In the US the technically correct answer is the pre-tax subtotal — that's the charge for the food and service. In practice most diners apply the percentage to the post-tax total because it's easier and the difference is a few percent of the tip. The Tip basis setting under Advanced switches between the two; the default is pre-tax.
Service charge is already on the bill — do I add a tip?
Generally no. In the UK, France, Italy and most of continental Europe, a printed service charge (often 10–15%) replaces the tip — adding more is discretionary but not expected. Some US restaurants add a "service" line for parties of 6+; it is worth checking whether the line says "tip" or "service charge" and whether tax is calculated on it.
Why is the per-person amount sometimes higher than grand total ÷ people?
With per-person round-up on, each person rounds up to the next whole currency unit, so the table collects a few cents or dollars more than the grand total. The Rounding delta field shows the over-tip. Round-down modes do the opposite.
Why doesn't the country preset overwrite my tip percentage?
By design. Switching country shows guidance for that region in the message above, but the slider stays put — so flipping between countries to compare them does not overwrite an entered percentage. The percentage is set separately, after reading the guidance.
What about Japanese yen — why does rounding only do ¥1 increments?
Rounding currently works at the base currency unit (¥1, $1, €1, £1). Coarser ¥100 or $5 increments are a planned follow-up. For cash payments in yen where ¥100 increments matter, setting tip to 0% (Japan does not tip) and splitting exactly keeps the math in whole yen by definition.
Disclaimer
Tipping conventions vary widely within countries and shift over time. Treat the country presets as a starting point, not a rule — local norms (city, neighbourhood, type of establishment) often matter more than national averages.
Recommended Next
Japan Consumption Tax Calculator — Tax-In / Tax-Out Converter
Calculate Japan's consumption tax (10% standard / 8% reduced rate). Add tax to a price or extract the pre-tax amount from a tax-inclusive total. Invoice-ready.