Tip Calculator
Calculate tip amount, total bill, and per-person split for any meal.
By Evan Carter · Updated August 15, 2026
Total Bill
$59
Including tip
Splitting the Check, Done Right
This tool turns a bill amount and a tip percentage into three numbers you actually need at the table: the tip itself, the grand total, and each person's share when you are splitting the check. Enter the bill, choose a tip percentage, set how many people are paying, and everything updates as you go. It removes the guesswork of doing percentage math on a phone keypad while the server waits, and it makes splitting evenly across a group simple.
How the Tip and Split Are Calculated
The tip is the bill multiplied by the tip percentage and divided by 100. On a $50 bill at 18%, the tip is 50 x 18 / 100 = $9, so the total comes to $59. To split the check, the calculator adds the tip to the bill first and then divides the grand total by the number of people. That $59 total split three ways is $59 / 3, or about $19.67 each. Splitting the total rather than the bill alone ensures the tip is shared evenly along with the food and drinks.
Example: Four Friends, a $120 Check
Suppose four friends share a $120 dinner and want to leave 20%. The tip is 120 x 20 / 100 = $24, bringing the total to $144. Dividing by four people gives $36 per person. If the group decides 15% is more appropriate, the tip drops to $18, the total becomes $138, and each person pays $34.50. Seeing both the tip and the per-person figure side by side makes it easy to settle on an amount everyone is comfortable with.
General Tipping Norms in the US
Tipping is customary in the United States for many services, and at sit-down restaurants a range of 15-20% of the bill is widely used. An 18% tip is a common baseline for good service, while 20% or more is often left for service people consider excellent. These are social conventions that shift over time and differ by region, not fixed rules, so the figures below are best read as starting points rather than requirements.
- Sit-down dining: commonly 15-20% of the bill, with 18% a frequent default.
- Exceptional service: many diners move to 20-25%.
- Takeout and counter service: often lighter, in the 10-15% range or a small flat amount.
- Large parties: a gratuity of roughly 18-20% is frequently added automatically, so check the receipt first.
Quick Mental Math for Tips
When you would rather estimate without a calculator, start from 10% by moving the decimal one place left. Double that figure for a 20% tip, or add half of it for 15%. On a $45 bill, 10% is $4.50, so 20% is $9.00 and 15% is $6.75. Rounding the bill up to the nearest ten before you start, then rounding the final tip to a whole dollar, keeps the arithmetic easy and usually lands within a few cents of the exact amount.
Common Questions and Mistakes
- Tipping twice. If an automatic gratuity or service charge already appears on the bill, an extra tip is generally optional.
- Tipping on tax. The traditional base is the pre-tax subtotal, though tipping on the total is common and the gap is small.
- Uneven orders. An even split is simplest, but if one person ordered far more, the group may prefer to divide by what each actually ordered and add the tip proportionally.
For Bills That Are Not Restaurant Checks
This calculator is purpose-built for tips and bill splitting. If you just need to find a percentage of any number outside of a restaurant context, the general percentage calculator is more flexible. To estimate the sales tax that appears on a check, a dedicated sales tax calculator applies the correct state rate, which you can then add as the bill amount before tipping on the pre-tax figure.
Frequently Asked Questions
How much should I tip at a restaurant?
In the US, 15-20% of the bill is a widely used range for sit-down restaurants, and 18% is a common default for good service. Many diners leave 20-25% for service they consider exceptional, and around 10-15% for takeout or counter service. These are general norms rather than fixed rules, and customs differ by region and country, so it is worth checking local expectations when traveling.
How is the tip amount actually calculated?
The tip is the bill multiplied by the tip percentage divided by 100. On a $50 bill at 18%, the tip is 50 x 18 / 100 = $9, making the total $59. This calculator does that math instantly and also shows the total so you can see the full amount you will pay before adding the tip line on a receipt.
Should I tip before or after tax?
Tips are traditionally figured on the pre-tax subtotal, since tax is not part of the service. Many people tip on the after-tax total for simplicity, and the difference is usually a small amount. Either approach is commonly accepted. If you want to match the traditional method exactly, enter the pre-tax subtotal as the bill amount.
How does the calculator split the bill among people?
It adds the tip to the bill to get the grand total, then divides that total by the number of people. For a $50 bill with an $9 tip split three ways, each person pays $59 / 3 = about $19.67. Increase the number of people above one to see the per-person tip and per-person total update automatically.
What is a quick way to estimate a tip in my head?
Move the decimal one place left to get 10% of the bill, then adjust. Double the 10% figure for a 20% tip, or add half of it for a 15% tip. On a $45 bill, 10% is $4.50, so 20% is $9.00 and 15% is $6.75. Rounding the bill to the nearest ten first makes the mental math even faster.
Do I still tip if a service charge is already included?
Many restaurants add an automatic gratuity, often around 18-20%, for larger parties, and some venues include a service charge on every check. When a gratuity is already on the bill, an additional tip is generally optional. Reading the itemized receipt before paying helps you avoid tipping twice on the same meal.
How do I tip on a discount, coupon, or comped item?
A common approach is to tip based on the menu price of what you ordered, before the discount, because the server did the same work regardless of the deal. For example, if a $40 entree was free through a promotion, many people still tip as if the bill were $40. This is a courtesy norm rather than a requirement.
Is tipping expected outside of restaurants?
Tipping in the US is common for a range of services beyond dining, such as food delivery, rideshare, haircuts, and bartending, though the typical amounts vary by service. Some situations use a flat dollar amount instead of a percentage. Because expectations differ widely by context and location, treat any specific figure as a general guideline, not a strict standard.
This calculator provides estimates for informational purposes only. Results should not be considered as financial advice. Actual amounts may vary based on additional factors not included in this calculator. Consult a qualified financial advisor for personalized advice.
Tax data is based on 2026 federal and state rates (IRS Rev. Proc. 2025-32, Tax Foundation). State bracket thresholds may differ slightly from official figures due to rounding and inflation adjustments. Data is updated annually and may not reflect mid-year legislative changes.
See how we calculate and our editorial policy for the formulas, sources, and review process behind this tool.