Figuring out how much to leave your server should never be a mental math exercise at the end of a meal. This free tip calculator does the work in seconds: enter your bill amount, choose a tip percentage, and optionally split the total among several people. The tool shows you the exact tip amount, the grand total, and what each person owes. No app download, no signup — just fast, accurate gratuity math right in your browser.
How to Use the Tip Calculator
- Enter the bill subtotal (the pre-tax amount or the after-tax total, whichever you prefer to tip on).
- Set the tip percentage — 15%, 18%, 20%, or a custom value.
- Enter the number of people splitting the bill (default is 1).
- The tip amount, total bill, and per-person share update instantly.
The Formula
The math behind gratuity is straightforward:
- Tip amount = Bill × (Tip% ÷ 100)
- Total = Bill + Tip amount
- Per person = Total ÷ Number of people
For example, a $65.00 dinner bill with an 18% tip: $65.00 × 0.18 = $11.70 tip, giving a total of $76.70. Split four ways, each person pays $19.18.
Worked Example
Your group of three orders brunch. The bill comes to $54.00. You want to leave 20% because the service was excellent. The calculation is: $54.00 × 0.20 = $10.80 tip. Total = $64.80. Each of the three people pays $21.60. That is the kind of arithmetic that is easy to fumble under social pressure, especially after a mimosa or two — which is exactly why having the tool handy matters.
Why Tip Percentages Matter
In the United States, tipping is an expected part of the service industry compensation model, and the standard range has shifted upward over the years. A 15% tip was once the norm; today 18–20% is considered standard for good restaurant service, and 20–25% is common when service is exceptional. For counter service, a 10–15% tip or a flat amount is typical. For delivery, most people tip 10–20% of the order value or at least a few dollars, especially for longer distances or large orders. Knowing which range applies helps you tip fairly without overpaying or undertipping.
When to Tip on Pre-Tax vs. After-Tax
There is an ongoing debate about whether to tip on the pre-tax subtotal or the final after-tax total. Technically, the convention is to tip on the pre-tax amount because the server did not provide the tax — the government did. In practice, the difference is small (a few cents to a dollar on most bills), and many people simply tip on the after-tax total for ease. Either approach is acceptable; the most important thing is that your tip reflects the quality of the service. This calculator lets you enter whichever number you see on your bill.
Tipping in Other Contexts
Restaurants are not the only place where tip etiquette applies. Hotel housekeeping: $2–$5 per night is a thoughtful acknowledgment. Taxi and rideshare drivers: 15–20% of the fare. Hair and nail salons: 15–20% of the service cost. Food delivery: $3–$5 minimum, or 15–20% for large orders. Movers and other service workers: $20–$50 per person for a full-day job. In each case, the same formula applies — this calculator handles them all.
Frequently Asked Questions
What is a standard tip percentage at a restaurant?
In the United States, 18–20% is the current standard for sit-down restaurant service. 15% is acceptable for average service; 20–25% rewards excellent service. Counter or takeout tips are typically lower, at 10–15%.
Should I tip on the pre-tax or after-tax amount?
Traditionally, tips are calculated on the pre-tax subtotal. In practice, most people tip on the after-tax total because it is the number printed on the receipt. The difference on a typical restaurant bill is small either way.
How do I split a bill unevenly?
This tool divides the total evenly by the number of people. For uneven splits — where one person had a more expensive dish — calculate the tip percentage on the whole bill first to get the tip rate, then apply that same percentage to each person’s individual subtotal manually.