TIP // CALC
The round hundred-dollar restaurant check is one of the most common tipping scenarios — a casual dinner for two, a double date, or a nice lunch for four all tend to land around this number. Calculate every standard percentage instantly, with or without sales tax, and split the total between any number of people.
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The $100 check is the round number people reach for most often when estimating a dinner budget. Below is every standard tip percentage side by side, including what each person pays if the same $100 dinner is split between two people or four people. All numbers assume you are tipping on the pre-tax food subtotal, which is the most common method in the United States.
| $100.00 bill × percentage | Tip | Total (100 + tip) | Per person for 2 | Per person for 4 |
|---|---|---|---|---|
| 10% | $10.00 | $110.00 | $55.00 | $27.50 |
| 15% | $15.00 | $115.00 | $57.50 | $28.75 |
| 18% | $18.00 | $118.00 | $59.00 | $29.50 |
| 20% | $20.00 | $120.00 | $60.00 | $30.00 |
| 22% | $22.00 | $122.00 | $61.00 | $30.50 |
| 25% | $25.00 | $125.00 | $62.50 | $31.25 |
The difference between 15% and 20% on a $100 bill is only $5 per person when split two ways, and $2.50 per person when split four ways. That small gap covers a wide range of service quality from acceptable to excellent, which is why the $100 total is such a common reference point for tipping conversations.
Walking through a realistic example helps make the two tipping methods concrete. Most US cities have a combined state and local sales tax somewhere near 8%, and 18% is the modern default baseline for competent table service. Here is exactly what happens, line by line, using the pre-tax method first, then the after-tax method for comparison.
Pre-tax method (most common):
After-tax method (less common but acceptable):
The difference between the two methods on a $100 bill at 18% with 8% tax is exactly $1.44. That is not a meaningful amount of money for one dinner, but it does add up over time — roughly $75 per year for someone who eats out once a week at this price point. Etiquette experts are split on which method is technically correct, but servers almost never see the difference or care which one you used.
A $100 restaurant tab means something very different depending on how many people are sharing it. For two people, it is a nice sit-down dinner with appetizers, entrees, and maybe a bottle of wine or a couple of cocktails. For four people, it is casual family dining or a quick lunch where everyone stuck to water and an entree. The per-person math changes significantly, and so does the social pressure around how generous the tip feels.
For 2 people (a couple or a double date split per couple):
| Tip % | Total bill | Per person (incl. tip) | Per person with 8% tax |
|---|---|---|---|
| 15% ($15) | $115.00 | $57.50 | $61.50 |
| 18% ($18) | $118.00 | $59.00 | $63.00 |
| 20% ($20) | $120.00 | $60.00 | $64.00 |
For two people sharing $100 of food, each person is spending roughly $50 on their meal before tip and tax. Adding an $18 tip split two ways means each person pays $9 extra for service — less than the cost of one cocktail. This is why date night and anniversary dinners almost always land at 18-20%: the absolute dollar increase per person is tiny relative to how it makes the experience feel.
For 4 people (family, friends, business lunch):
| Tip % | Total bill | Per person (incl. tip) | Per person with 8% tax |
|---|---|---|---|
| 15% ($15) | $115.00 | $28.75 | $30.75 |
| 18% ($18) | $118.00 | $29.50 | $31.50 |
| 20% ($20) | $120.00 | $30.00 | $32.00 |
For four people sharing $100 of food, the gap between 15% and 20% is only $1.25 per person — literally pocket change. This is why group tables almost always default to 18% or 20% without much discussion: nobody wants to be the person arguing over a dollar when the entire meal is already under $32 a head including tax and service. Restaurants know this too, which is why they often add an automatic 18% gratuity for parties of six or more.
There is a widespread cultural belief that 20% is the "romantic" tip percentage on a date, especially a first date or an anniversary. The idea is that rounding up from 18% to 20% signals generosity without being ostentatious, and it avoids any awkwardness around looking cheap in front of someone you are trying to impress. The numbers on a $100 date night dinner support this convention, but they also show why the difference is mostly symbolic rather than financial.
On a $100 bill, the jump from 18% to 20% is exactly $2 in absolute terms — less than a bus fare or a tip at a coffee shop. Even split between two people, that is $1 per person extra. What makes the gesture feel meaningful is not the money itself, but the signal it sends: you were paying attention to the service, you did the math without needing a calculator, and you chose the slightly nicer option. Servers notice this too, not because the extra $2 changes their life, but because 20% on a round-number bill usually means the table had a good time and appreciated the effort.
There are a few caveats worth mentioning. First, if the service was genuinely mediocre, sticking with 18% on a date is perfectly acceptable and nobody should feel pressured to overtip for the sake of appearances. Good service is rewarded; average service gets an average tip. Second, if you are on a budget and $100 is already a stretch, 15% is not a deal-breaker — a polite, engaged date who treats their server with respect matters far more than an extra $5 on the tip line. Finally, if you are splitting the bill on a date, the same rules apply to both people: whichever percentage you agree on, make sure the tip reflects the actual service rather than a performative attempt to look generous.
One subtle detail that experienced daters use: if the bill comes to exactly $100 and the service was great, leaving $125 total ($20 tip + $5 extra) is a very small gesture that servers remember. It is less than the price of dessert, but it stands out on a round-number bill because almost nobody does it. Similarly, if you pay with cash and leave a $20 on top of a $100 charge that you put on the card, the server gets a cash tip immediately rather than waiting for it on their paycheck, which is genuinely helpful for anyone living tip to tip.
A $100 food delivery order is not the same as a $100 restaurant bill, and the tipping rules reflect that difference. Delivery drivers are not waiters — they do not take your order, refill your drinks, or pace your meal. They drive to the restaurant, wait for the food, and bring it to your door. Their costs are gas, wear and tear on their car, parking tickets, and the time value of each trip. The standard delivery tip range is 15-20% of the food subtotal, but with an important minimum that changes the math for both small and large orders.
$100 food delivery (Uber Eats, DoorDash, etc.): 15% on $100 is $15, and 20% is $20. Both are well above the typical $5 minimum floor, so the percentage works fine here. The only time you would tip more is if the weather was bad, the distance was unusually long, the driver had to carry heavy groceries up multiple flights of stairs, or the order was exceptionally complex with many special instructions. A $100 delivery order that arrived on time, hot, and complete deserves at least $15, and $20 is generous but appropriate for a smooth experience. Tipping less than $10 on a $100 delivery order would be considered below standard by most drivers.
The $5 minimum rule and why it matters for small orders: The 15-20% range works on a $100 order, but on a $15 order it would only be $2.25 to $3.00 — less than the driver probably spent on gas to come pick it up. That is why almost every delivery tipping guide recommends a practical floor of $3 to $5 regardless of order size. A driver's per-trip costs are roughly the same whether they are carrying a single sandwich or a $100 catering box, so the minimum compensates them for the trip itself while the percentage scales with larger orders. On $100 and above, the percentage takes over and the minimum no longer applies.
$100 catering order (drop-off or full service): Catering is different from standard delivery because it often includes setup, chafing dishes, serving utensils, and sometimes a staff member staying through the event. If the catering company adds a service charge or a delivery fee, read the invoice carefully. Many catering companies add an automatic 18% service charge that goes to the catering staff — if that is already on the bill, you do not need to tip again unless the service was exceptional. If there is no service charge listed, or if the charge is explicitly described as a company fee rather than a staff gratuity, then 10-15% is standard for drop-off catering, and 15-20% for full-service catering where staff stayed to serve. A separate cash tip for the catering lead or the person who set everything up is always appreciated if the event went smoothly.
Pizza delivery in particular: A $100 pizza order usually means multiple large pies, sides, and drinks for a group — Super Bowl parties, birthday parties, and office meetings are the common scenarios. The pizza delivery driver is carrying heavy, stacked boxes that are easy to drop or spill, and in bad weather the job gets significantly harder. Most pizza-specific tipping guides recommend $3 to $5 per pie as a cross-check against the percentage. On a $100 pizza order with, say, five large pies at roughly $20 each, that cross-check would suggest $15 to $25, which lines up almost perfectly with the 15-20% range. Snow, rain, or pizza delivered during peak dinner or game-time hours should push you toward the higher end of that range.
The $100 bill is a nice round reference, but restaurant checks rarely land exactly on a hundred. Here are quick links to adjacent amounts and a full chart if you need something else:
$50 Tip Calculator · $200 Tip Calculator · Tip Chart (all amounts) · Tip Calculator with Tax · Bill Split Calculator
Working with a state-specific tax rate instead of the generic 8%? Browse the tip calculator by state hub for all 50 states plus Washington DC, each pre-loaded with the local average combined sales tax rate. California, New York, Texas, Florida, Illinois, and the other high-population states are all covered, with links to nearby major cities where the local tax differs from the state average.
A 20% tip on a $100 bill is exactly $20.00, making the total $120.00 before tax. With 8% sales tax added ($8.00), the final total becomes $128.00 if you tip on the pre-tax subtotal. If you tip on the post-tax total of $108.00 instead, the tip becomes $21.60 and the full total is $129.60.
On a $100 restaurant bill with 8% sales tax and an 18% tip calculated pre-tax, you pay: $100.00 bill + $8.00 tax + $18.00 tip = $126.00 total. If you tip on the post-tax amount instead, the 18% tip becomes $19.44 on the $108 taxed total, bringing the full amount to $127.44 — a difference of $1.44 between the two methods.
Fifteen dollars on a $100 bill is exactly 15%, which is considered the historical minimum baseline for competent sit-down table service in the United States. It is not rude or inadequate, but most modern etiquette guides and server expectations now treat 18% as the standard default and 20% as generous. If the service was merely acceptable without being memorable, $15 is perfectly fine. If the server was attentive, helpful, or went slightly out of their way, $18 or $20 is more aligned with current norms.
For a couple sharing a $100 dinner, the standard range is $18 to $20 as a tip — 18% to 20% on the pre-tax subtotal. That puts the per-person cost at roughly $63 to $64 including tax and tip with 8% sales tax, or $59 to $60 if tax is zero. On a romantic date night, many couples lean toward 20% ($20 tip) as a gesture of appreciation, especially if the server helped create a nice atmosphere. Splitting evenly, each person pays approximately $63 including tax and a standard 18% tip.
The most common and widely recommended approach is to tip 20% on the $100 food subtotal — meaning the pre-tax, pre-fees amount that represents what you actually ordered and ate. Delivery fees, service charges, credit card processing fees, and sales tax are not part of the service your waitstaff provided, so they are typically excluded from the tip calculation. If the restaurant adds an automatic service charge or gratuity, read the fine print carefully before tipping on top — sometimes that charge is already going to the staff, and sometimes it is kept by the house.
A $100 pre-tip bill means the food and drinks cost $100 before any gratuity is added. At 18%, the tip is $18 and the total becomes $118 before tax, or $126 with 8% tax included. A $100 post-tip total means you want your final out-the-door number — including tip — to land at exactly $100. To work backward: if you want $100 total and plan to tip 18% pre-tax, the actual food bill should be roughly $84.75, because $84.75 + $15.25 tip = $100. The difference matters most when you are working backward from a budget number rather than forward from a printed receipt.