Tip Calculator
Technical Calculation Methodology and Tool
Interactive Tip Calculator
Calculate tip amount, total bill, and per-person cost instantly for restaurants, delivery, and group bills.
Tip Calculator
Calculate tip, total bill, and per person amount instantly
The bill hits the table and suddenly everyone's staring at their phones trying to work out 18% of $68.50 while the server waits. Use this tip calculator to calculate the tip amount, total bill, and per-person cost using your bill total, tip percentage, and number of people splitting. It's useful everywhere a service charge applies — restaurants, food delivery, taxis, hair salons, and group dinners. This page covers the formula, worked examples, standard tipping guidelines, and a full FAQ.
What is a tip calculator?
A tip calculator works out how much extra to add to a bill as a gratuity. Enter your bill amount and a tip percentage, and it tells you the tip, the new total, and — if you're splitting — what each person owes.
Simple Explanation
Think of a tip as a bonus payment to your server, driver, or stylist — a percentage of your bill added on top. If your meal costs $50 and you tip 20%, you're adding $10, so you pay $60 total. The calculator does that multiplication for you and divides it evenly if a group is sharing the bill.
How to Use This Calculator
- Enter your bill amount in the Bill Amount field.
- Select a tip percentage using the preset buttons (10%, 15%, 18%, 20%, 25%) or type a custom percentage.
- Use the + and − buttons to set how many people are splitting the bill.
- Click Calculate to see your result.
Simple Example
Bill: $50. Tip: 20%. People: 2.
Tip amount: $10.00. Total bill: $60.00.
Each person pays: $30.00.
How Tipping Works
A tip is a voluntary payment added to a service bill to show appreciation. It is usually calculated as a percentage of the bill amount.
People use tip calculators for restaurant meals, food delivery, taxis, salons, hotel services, and group dinners. The biggest benefit is avoiding mental math mistakes when the bill needs to be split quickly.
The Tip Formula
Use the formula below to calculate tip amount, total bill, and per-person share.
Step-by-Step Calculation
- Take the bill amount.
- Convert the tip percentage into a decimal by dividing by 100.
- Multiply the bill by that decimal to find the tip amount.
- Add the tip to the bill to get the total.
- Divide by the number of people if the bill is being split.
Worked Examples
Bill is $68.50. You want to leave 18%. What do you pay?
Tip: $12.33. Total: $80.83. Each person: $40.42.
Group dinner is $224. A 20% tip is split six ways.
Tip: $44.80. Total: $268.80. Each person: $44.80.
Order is $6.75. You want to leave 15%.
Tip: $1.01. Total: $7.76.
Your bill is $55 and you want to leave 20%.
Tip: $11.00. Total: $66.00.
Results Table
| Bill | Tip % | Tip Amount | Total |
|---|---|---|---|
| $50.00 | 15% | $7.50 | $57.50 |
| $68.50 | 18% | $12.33 | $80.83 |
| $100.00 | 20% | $20.00 | $120.00 |
| $224.00 | 20% | $44.80 | $268.80 |
Standard Tipping Guidelines
- Restaurants: 15–20% for good service, 20–25% for excellent service
- Bars: $1–$2 per drink or 15–20% on the tab
- Food delivery: 10–15%, often more for difficult or large orders
- Hair salons: 15–20%
- Taxi or rideshare: 10–20%
Quick Mental Math Trick
To calculate 20% quickly, find 10% of the bill by moving the decimal one place to the left, then double it. On a $55 bill, 10% is $5.50, so 20% is $11.00. For 15%, find 10% and add half of it.
Common Mistakes to Avoid
- Forgetting to include the tip in the split: The per-person cost should include both the bill and the tip.
- Typing the wrong percentage: Enter 20 for 20%, not 0.20.
- Using the wrong number of people: Double check the split count before paying.
- Rounding mentally too early: Small rounding errors can add up on large group bills.
Quick Answers
What is a 20% tip on $50? $10.00.
What is a 15% tip on $100? $15.00.
What is an 18% tip on $68.50? $12.33.
What is the total bill for $224 with a 20% tip? $268.80.