Tip Calculator
Enter your bill amount and tip percentage to calculate the tip, total, and per-person cost when splitting with others.
How Much Should You Tip?
The short answer for restaurants in the United States: 15% to 20% of the pre-tax bill. That range has been the baseline for table service for decades, though tipping culture has shifted noticeably in recent years. Many people now consider 20% the standard starting point for good service, with 15% reserved for situations where something went wrong.
For counter service — coffee shops, fast-casual restaurants, food trucks — tipping expectations are murkier. The square payment terminals that suggest 15%, 20%, or 25% have made these situations feel high-pressure, but there's no established rule that you need to tip at a counter the way you would for table service. A dollar or two, or 10%, is generous for counter orders.
Delivery drivers generally receive 15% to 20%, with a minimum of $3 to $5 regardless of order size. If you order a single coffee for delivery, a $2 tip on a $5 order isn't really fair to someone who drove to you. Hair stylists, barbers, and spa workers typically receive 15% to 20% as well. Movers, hotel housekeeping, and valet parking have their own norms, usually flat amounts rather than percentages.
Tipping on Pre-Tax vs Post-Tax Amount
One of the most common questions about tipping is whether to calculate the percentage on the pre-tax or post-tax bill. Traditionally, etiquette guides recommend tipping on the pre-tax subtotal. Sales tax goes to the government, not to the restaurant, so it shouldn't inflate the server's tip calculation.
In practice, the difference is small. On a $100 dinner with 8% sales tax, the check total is $108. A 20% tip on the pre-tax amount is $20.00. A 20% tip on the post-tax total is $21.60. That $1.60 difference isn't going to break anyone's budget, and servers certainly won't complain about the extra buck and change.
Some people split the difference by tipping on the total amount but at a slightly lower percentage. Others just look at the final number on the bill and round. There's no wrong answer here as long as you're in the right ballpark. If you're agonizing over whether to tip $20 or $21.60, you're already a better tipper than most people.
A Brief History of Tipping in America
Tipping wasn't always an American tradition. The practice originated in European taverns and coffee houses in the 1600s, where customers would leave extra coins for notably good service. American travelers brought the custom back from Europe in the late 1800s, and it initially faced significant backlash. Critics called it un-American and undemocratic — a way for the wealthy to show off. Several states actually passed anti-tipping laws in the early 1900s.
The practice stuck anyway, partly because the restaurant industry realized that tips allowed them to pay servers lower base wages. The federal tipped minimum wage has been $2.13 per hour since 1991, unchanged for over three decades, though some states mandate higher tipped minimums. California, Washington, and Oregon require servers to be paid the full state minimum wage before tips.
This structure means that tips aren't really optional in the American context — they're a significant portion of a server's take-home pay. In countries with higher base wages for service workers, such as most of Europe, Australia, and Japan, tipping is either modest or nonexistent. When Americans travel abroad, the instinct to leave 20% can actually make servers uncomfortable in places where tipping isn't customary.
Quick Mental Math for Tips
You don't need a calculator for most tipping situations, but having a couple of shortcuts helps when you want to be quick about it.
For a 10% tip, just move the decimal point one place to the left. On a $73.50 bill, 10% is $7.35. For 20%, double that: $14.70. For 15%, find 10% and add half of it: $7.35 plus $3.68 equals $11.03. Most people round to $11.
Another trick: calculate 20% first (it's the easiest), then adjust down if needed. Twenty percent of $45 is $9. If you want to leave 18%, that's a little less — call it $8. For 15%, it's about three-quarters of the 20% figure, so roughly $6.75.
If the math feels tedious, just round the bill to the nearest $10 and tip on that. A $67 bill rounds to $70, and 20% of $70 is $14. The extra few cents from rounding are irrelevant compared to the convenience of doing the math in your head in two seconds. The goal is generosity within reason, not accounting precision.
Tip Calculation
Tip = Bill Amount × (Tip Percentage / 100)
The math behind tipping is straightforward: multiply the pre-tax bill by the tip percentage expressed as a decimal. An 18% tip on $85 is $85 × 0.18 = $15.30. The total bill becomes $100.30. If three people are splitting, each person owes $33.43. Most people round to the nearest dollar for convenience, and some round the final total to an even number instead of calculating an exact percentage.
Where:
- Tip = The dollar amount added to the bill as gratuity
- Bill Amount = The pre-tip total from the check or invoice
- Tip Percentage = The rate you choose to tip (commonly 15% to 20%)
Example Calculations
Dinner for Two
Calculating an 18% tip on an $85 restaurant bill for two people.
- Bill amount: $85.00
- Tip percentage: 18%
- Calculate tip: $85.00 × 0.18 = $15.30
- Total with tip: $85.00 + $15.30 = $100.30
- Split between 2 people: $100.30 ÷ 2 = $50.15 each
Many people would round this up — each person pays $50.25 or even $51 to make it cleaner. The extra couple of dollars above a flat split won't matter to anyone but makes the arithmetic easier.
Group Dinner with 20% Tip
Splitting a $240 bill with 20% tip among four friends.
- Bill amount: $240.00
- Tip percentage: 20%
- Calculate tip: $240.00 × 0.20 = $48.00
- Total with tip: $240.00 + $48.00 = $288.00
- Split between 4 people: $288.00 ÷ 4 = $72.00 each
Even splits work well when everyone ordered roughly the same amount. If one person had the lobster and another had a salad, consider splitting the base bill proportionally and adding a flat tip on top. Apps like Splitwise handle this gracefully.
Frequently Asked Questions
Traditional etiquette says to tip on the pre-tax subtotal since sales tax goes to the government, not the restaurant. In practice, the difference between tipping on pre-tax versus post-tax is usually a dollar or two. Either way is fine. If you tip 20% on the post-tax total, no one will consider that an error — it just means a slightly larger tip.
In the US, not tipping at a sit-down restaurant is generally considered inappropriate regardless of service quality, because servers depend on tips as a major part of their income. If service was genuinely terrible, 10% acknowledges the situation without leaving nothing. For takeout, counter service, and self-serve situations, tipping is appreciated but not expected. Internationally, norms vary widely.
A good guideline for food delivery is 15% to 20% of the order total, with a minimum of $3 to $5. Delivery drivers use their own vehicles and gas in many cases, and the delivery fee charged by the app doesn't always go to the driver. For large orders or difficult delivery conditions like bad weather or apartment buildings with no elevator, tipping on the higher end is appropriate.
Yes. When dining at a restaurant, the standard practice is to tip on the total bill including drinks. Alcohol often makes up a significant portion of a dinner check, and servers handle those orders the same as food. At a bar, the common guideline is $1 to $2 per drink for simple orders like beer or wine, and 15% to 20% for cocktails or large tabs.
Tipping at coffee shops is optional and generally lower than restaurant tipping. For a basic drip coffee, you can skip the tip or drop a dollar. For specialty drinks that require more preparation — lattes, pour-overs, blended drinks — a dollar or two is a nice gesture. The tip screens on payment terminals can feel aggressive, but there's no obligation to match the suggested 20% for counter service.