Tip Calculator
Work out the tip, total bill, and per-person split for any check.
The Tip Calculator turns a bill amount and a gratuity rate into three numbers you actually need at the table: the tip itself, the tip-inclusive total, and the amount each person owes when the check is shared. Tipping is a small calculation done under social pressure, often on a phone, sometimes after a drink or two — which is exactly why it is so easy to get wrong. This page shows the arithmetic in full, explains the conventions behind pre-tax versus post-tax tipping, and covers the rounding and splitting decisions that cause most of the confusion when a group settles a bill.
How to use this calculator
- Enter the pre-tip bill amount.
- Choose the tip percentage.
- Enter how many people are splitting, and calculate.
The formula
Tip = Bill × (Tip % ÷ 100) Total = Bill + Tip Per person = Total ÷ People- Bill
- The check amount before tip
- Tip %
- Your chosen gratuity rate
How it works
The tip is a straight percentage of the bill. 18% of $86.40 is 86.40 × 0.18 = $15.55.
Splitting divides the tip-inclusive total evenly; rounding to cents happens only at display time, so the per-person figure is exact.
Worked example
An $86.40 dinner check, 18% tip, split 3 ways.
- 1Tip = 86.40 × 0.18 = 15.55
- 2Total = 86.40 + 15.55 = 101.95
- 3101.95 ÷ 3 ≈ 33.98
Tip $15.55, total $101.95, about $33.98 per person.
How the tip is calculated
A tip is a straight percentage of a base amount: multiply the bill by the rate divided by 100. An 18% tip on $86.40 is 86.40 × 0.18 = $15.55. Adding that to the bill gives the total of $101.95.
Splitting divides the tip-inclusive total by the number of people. The calculator keeps full precision internally and rounds only when displaying, so the per-person figure is not distorted by intermediate rounding.
Pre-tax, post-tax, and service charges
Sales tax is a government charge, not part of the service, so many people tip on the pre-tax subtotal. Tipping on the post-tax total is also common and simply produces a slightly larger tip — on a bill with 8% tax, roughly 8% more tip.
Some restaurants add an automatic service charge or 'gratuity included' line for larger parties. Check the bill before adding another tip, otherwise you will pay twice. If a service charge is listed, enter only the food and drink subtotal here if you want to top it up.
Splitting fairly and rounding
An even split is fastest and usually fine among friends who ordered similar things. When orders differ sharply, split the subtotal by what each person ordered, then apply the same tip percentage to each share so the gratuity scales fairly.
Rounding up to a whole dollar per person is the normal courtesy and costs very little. If you want a round total instead, nudge the percentage: on a $50 bill each 1% is $0.50, so small adjustments move the total predictably.
Tipping customs around the world
Tipping norms are cultural, not mathematical. In the United States, table service is typically 15-20% because tipped wages are legally lower. In much of Europe, service is included and rounding up or leaving 5-10% is normal.
In Japan and South Korea, tipping is generally not practised and can cause confusion. In Australia and New Zealand it is optional and reserved for notably good service.
When travelling, check local practice before applying a home-country percentage. Over-tipping is harmless but expensive; under-tipping in a tipping culture penalises staff whose income depends on it.
Card machines, suggested tips, and pre-tax bases
Payment terminals often suggest percentages calculated on the tax-inclusive total, which quietly raises the tip. On a bill with 9% tax, an 18% suggested tip is effectively 19.6% of the food.
Some terminals also present flat-amount buttons rather than percentages, which on a small bill can represent a very high rate.
Entering the subtotal here and choosing your own percentage gives you the number you actually intended to leave.
Groups, shared plates, and uneven orders
For an even split, divide the tip-inclusive total by the headcount. This is fair when everyone ordered comparably and saves several minutes of arithmetic.
For uneven orders, total each person's items, apply the same tip rate to each, then add each person's share of tax. Everybody contributes proportionally to what they consumed.
Shared starters and bottles are usually easiest to split evenly across those who took part, then added to the individual totals.
Common tipping mistakes
Tipping on top of an included service charge, which doubles the gratuity without anyone noticing.
Applying a restaurant percentage to services with different norms — counter service, taxis, hairdressers, and hotel staff all follow their own conventions.
Rounding the per-person amount down rather than up when splitting, which leaves the total short of the intended tip.
Quick mental methods
Move the decimal point one place left for 10%, then halve that for 5%. Ten plus five plus a little gives a comfortable 17-18%.
For 20%, double the 10% figure. For 15%, take 10% plus half of it. Both are quick enough to do while the card machine is being handed over.
To reach a round total instead, decide the total first and let the tip be the difference — the calculator shows the implied percentage so you can check it is reasonable.
Glossary and verification
Subtotal: the cost of food and drink before tax. Service charge: an amount the venue adds automatically. Gratuity: a voluntary tip. Tip-inclusive total: subtotal plus tax plus tip.
Verify by dividing the tip by the base you intended — if you tipped 15.55 on 86.40, that is 18.0%.
Verify a split by multiplying the per-person figure by the headcount and confirming it matches the total, allowing for a few cents of rounding.
Deciding a rate you can apply consistently
Choosing a default rate in advance removes the arithmetic and the awkwardness. Most people settle on one figure for ordinary service and adjust up or down from there.
Adjusting for service quality works best in small steps. Moving from 18% to 20% is a clear signal; moving to 30% mainly costs money without communicating anything.
For very low bills, a percentage can be trivially small. A modest minimum is common courtesy where the staff time was the same regardless of the order size.
Cash, card, and who actually receives it
Cash tips usually reach staff immediately and in full. Card tips may pass through the employer, be pooled, or in some places be subject to deductions.
Tip pooling shares gratuities across front and back of house, which many staff prefer for fairness, though it means a tip for one server is shared.
If it matters to you that a specific person receives the tip, cash handed directly is the most reliable route.
Tipping norms by country
Expectations vary widely: fifteen to twenty percent is standard in the United States, ten percent is generous in much of Europe, and tipping is unusual or even unwelcome in Japan.
Where service is included as a compulsory charge, an additional tip is optional and usually reserved for exceptional service.
Checking whether a service charge already appears on the bill prevents tipping twice, which is easy to do in tourist areas.
Cash tips more often reach staff directly, though many venues now distribute card tips fairly under a written policy.
Splitting bills fairly
An even split is fastest and fine when orders are similar, but it quietly overcharges the lightest eaters when they are not.
Itemised splitting is fairer and now practical with a phone, though it still needs tax and service apportioned proportionally.
Apply the tip to the pre-tax subtotal to avoid tipping on tax, then divide the total rather than tipping individually.
Rounding the final per-person figure up by a small amount keeps the arithmetic simple and covers any shortfall.
Tipping beyond restaurants
Taxis, hairdressers, delivery riders, hotel housekeeping, and tour guides all have their own local customs, and the restaurant percentage rarely transfers directly.
For delivery, a flat amount often works better than a percentage, since the work involved barely changes with the order size.
For long stays, leaving something for housekeeping each day reaches the person who actually did the work rather than whoever is on shift at checkout.
When in doubt, a small amount given politely is better received than nothing, and local staff will rarely object to a modest rounding up.
Group etiquette and awkward moments
Agreeing the approach before the bill arrives — even split, itemised, or one payer reimbursed later — removes almost all friction at the table.
Where one person pays by card and others repay by transfer, calculating the per-head figure including tip first keeps everyone even.
If service was genuinely poor, raising it with the venue at the time is more useful than silently reducing the tip.
Keep a little cash for venues whose card terminals do not offer a tip option, which is still common in many countries.
When this calculator is useful
- Restaurants and delivery
- Splitting group checks
- Tipping on services (salon, taxi)
- Quick mental-math checks
Frequently asked questions
Should I tip on the pre-tax or post-tax amount?
Customs differ; many people tip on the pre-tax subtotal. Enter whichever base you prefer — the math is the same.
How do I round the total to a whole number?
Adjust the percentage until the total lands where you want — each 1% on a $50 bill is $0.50.
What is a standard tip percentage?
In US restaurants, 15–20% is typical for table service, with 18% a common default. Counter service, delivery, and other regions follow different customs.
Should I tip on delivery fees?
Delivery fees usually go to the platform or restaurant, not the driver. Most people tip on the food subtotal and treat the fee separately.
How do I tip when the group orders very differently?
Split the subtotal by each person's items, then apply the same percentage to each share. Everyone tips proportionally to what they consumed.
Does the calculator handle more than one person?
Yes — enter the number of people and it divides the tip-inclusive total evenly, showing the exact amount each person pays.
Is it rude to tip a round number?
No. Rounding the per-person amount or the total up to a convenient figure is normal and generally appreciated.
How do I work backwards from a total I want to pay?
Divide your target total by the bill, subtract 1, and multiply by 100. Paying $100 on an $86.40 bill is a tip of about 15.7%.
Do I tip on alcohol?
Conventionally yes, at the same rate as food, since bar staff and servers are usually part of the same tip pool.
Should I tip before or after tax?
Either is accepted. Tipping on the pre-tax subtotal is the traditional convention; tipping on the total simply leaves a slightly larger amount.
Do I need to tip if a service charge is added?
No. A service charge is already a gratuity. Add more only if you want to reward exceptional service.
How much should I tip for delivery?
Commonly 10-15% of the food subtotal, with a small minimum for short or low-value orders. Delivery fees usually do not reach the driver.
How do I split a bill when one person had much more?
Total each person's items, apply the same tip rate to each subtotal, and add each share of the tax.
Is 20% now the standard?
In US table service, 20% has become a common default, though 15-18% remains widely accepted.
Is a cash tip better than a card tip?
Usually it reaches staff faster and in full, though this varies by venue and jurisdiction.
Should I tip a minimum on a very small bill?
Many people do, since the service effort is similar regardless of the order value.
Should I tip on the pre-tax or post-tax total?
Pre-tax is the usual convention, since tax is not part of the service.
Do I tip when service is included?
Generally no — an extra tip is optional and reserved for exceptional service.
How much should I tip a delivery rider?
A flat amount usually makes more sense than a percentage, since effort barely scales with order size.
What if service was poor?
Raise it with the venue at the time; that is more useful to staff than a silently reduced tip.