Tip
Calculate tip amount, total bill, and per-person split — with smart rounding and regional tipping guidance.
Tipping is simple arithmetic that somehow refuses to happen fast in your head. You know a US restaurant expects 18%, but the bill is $47.83, four people are splitting it, and one of them had a cocktail. Type the numbers here and get per-person amounts, with optional rounding for when you're paying in cash.
Tipping customs also vary wildly by country. A 20% tip expected in New York is an insult in Tokyo and a rounding error in Madrid. The guide below covers the norms for where you're going, so you don't over-tip in a country that doesn't tip or short a waiter in a country that relies on it.
How the math works
The core calculation is simple: tip amount = bill × (percent / 100). From there, total = bill + tip, and if you divide among N people, per person = total / N.
The only real subtlety is whether the tip is calculated on the pre-tax or post-tax bill. Old US etiquette said pre-tax; modern practice (and most point-of-sale systems) applies it to the total. The difference is maybe 1-2% of the bill. Noticeable over a year of eating out, not worth arguing about at the table.
Rounding options change which number gets rounded up. 'Round up tip' raises the tip itself to the next whole dollar (e.g. $7.20 → $8). 'Round up total' pads the final bill to a clean number ($59.44 → $60). 'Round up per-person' makes each person's share a whole dollar, which is the smoothest option when splitting in cash.
tip = bill × p/100 · total = bill + tip · per_person = total / N
- bill
- Amount before tip (pre- or post-tax, your choice)
- p
- Tip percentage (e.g. 18 for 18%)
- N
- Number of people splitting the bill
Practical examples
Restaurant dinner, standard US tip
Setup: $84 bill at a sit-down restaurant in Chicago, party of three splitting evenly, 20% tip.
tip = 84 × 0.20 = $16.80. total = $100.80. per person = $33.60.
Takeaway: A 20% tip on a round-ish bill (like $100) makes the math easy — that's why you'll see experienced tippers start with 20% and only adjust up or down from there.
Delivery with a cash top-off
Setup: $32 takeout order at home, 15% tip rounded up to keep the payment clean.
tip = 32 × 0.15 = $4.80. Rounded up: $5. total = $37.
Takeaway: For delivery, a flat $5 on small orders and 15-20% on larger ones is the norm in North America. Rounding up to a whole bill saves time and feels generous without breaking the bank.
Dinner in Tokyo
Setup: The 6,400 ¥ bill at an izakaya in Shibuya. Four people.
Tip: ¥0. Total: ¥6,400. Per person: ¥1,600.
Takeaway: Tipping in Japan is not expected and can even cause confusion or embarrassment for staff. The price on the menu is the price you pay. Save your yen.
Mental-math tricks for tipping
- 10% is just moving the decimal. A $47 bill is $4.70 at 10%. Double it for 20% ($9.40). Halve 10% and add it for 15% ($7.05). Almost every restaurant tip is a variation on this shortcut.
- For 18%, compute 20% and shave ~10%. On a $50 bill: 20% is $10. 18% is a buck less → about $9. Works to within a few cents.
- When splitting, pay your share including tip, not just your meal's pre-tip total. The person who ordered water shouldn't subsidize the two who ordered cocktails — but the tip percentage should apply uniformly to the whole table.
- Tip in cash when possible at small businesses. Credit card tips pass through payment processors (2-3% fees) and can take 2-5 business days to reach staff. Cash goes in their pocket at the end of shift.
When tipping rules change
Some restaurants — especially in the US — have moved to a no-tipping, service-included model, bumping menu prices ~20% instead. Adding a tip on top is not expected and usually declined.
Many bills at higher-end restaurants, and most group bookings, include a mandatory service charge of 15-20%. This isn't always the same as a tip — sometimes it goes to the restaurant, not the server. If it does go to staff, adding a second tip on top is optional.
In Japan, South Korea, China, and much of continental Europe outside tourist areas, tipping is not expected and in some cases discouraged. Ultra-luxury hotels everywhere are an exception — small cash tips for bellhops, housekeeping, and concierges are universal.
Frequently asked questions
Should I tip on the pre-tax or post-tax amount?▾
Historically, US etiquette said pre-tax. In practice today, most people (and nearly all point-of-sale systems) tip on the total. The difference is small — roughly 1-2% of the post-tax total. If you want to be precise, this calculator lets you enter the pre-tax amount explicitly.
How much should I tip for delivery?▾
15-20% for delivery in the US and Canada, with a minimum of $2-5 on small orders. Many delivery apps now show a "tip your driver" prompt that defaults to 15-20% of the subtotal. Tip more in bad weather or for orders that are hard to carry.
Is the tip included in my bill?▾
Check the itemized bill for a line labeled 'service charge', 'gratuity', 'tip included', 'serviço' (PT/ES), or 'Bedienung' (DE). Parties of 6+ and upscale restaurants often auto-add 18-20%. If you see that, you don't need to add another tip — but small additional cash for exceptional service is still appreciated.
Do I tip at counter service, coffee shops, or takeout?▾
Norms are shifting. Traditional US etiquette: no tip for pure counter service, $1-2 for coffee or baristas who customize your drink, 10-15% on takeout if someone packed and handed it to you. The tip prompts on tablets have made this confusing — feel free to hit 'No tip' on pure transactional orders.
What about tipping while traveling internationally?▾
Rule of thumb: Americas and Canada expect 15-20%. UK expects 10-12.5% and check if service is included. Southern Europe: 5-10% or round up. Germany/Austria: round up or 10%. Japan/Korea/China: don't tip, it can be awkward. Middle East: 10-15% is common at tourist-facing places. Always check a recent local guide — norms shift.
Sources
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