Tip Calculator
Enter your bill amount, choose a tip percentage, and split the total among as many people as needed. Results update instantly.
How to Calculate a Tip
Calculating a tip is straightforward once you know the formula. Multiply your bill amount by the tip percentage expressed as a decimal:
Tip Amount = Bill × (Tip% ÷ 100)
For example, on a $65 dinner bill with an 18% tip: $65 × 0.18 = $11.70 tip, for a total of $76.70. On a $40 lunch with a 20% tip: $40 × 0.20 = $8.00 tip, totaling $48.00.
A quick mental math trick: find 10% of the bill (move the decimal one place left), then add half of that for 15%, or double it for 20%. For a $50 bill, 10% = $5, so 20% = $10.
Tip Percentage Guide
How much you tip depends on the quality of service and the type of establishment. Here are the widely accepted US tipping norms:
| Tip % | Service Level | When to Use |
|---|---|---|
| 10% | Poor | Service had significant problems |
| 15% | Adequate | Basic service, no major issues |
| 18% | Good | Friendly, attentive service |
| 20% | Great | Above-average, responsive service |
| 25%+ | Exceptional | Outstanding experience, going above and beyond |
Note: For takeout orders, 10–15% is considered appropriate. For delivery, 15–20% is standard, with more for large or complex orders.
How to Split a Bill Evenly
When dining in a group, splitting the bill evenly keeps things simple. The formula is:
Per Person = (Bill + Tip) ÷ Number of People
For example, a group of 4 with a $120 bill and a 20% tip: tip = $24, total = $144, each person pays $36.00.
Even splitting works best when everyone orders roughly the same amount. If one person orders significantly more than others, it can be fairer to itemize. Our split bill calculator is designed specifically for group dining scenarios.
Tip Calculator FAQs
How much should I tip at a restaurant?
Standard restaurant tipping in the US ranges from 15% for adequate service to 20–25% for excellent service. For buffet or counter service, 10% is common. Fine dining and full table service typically warrants 20% or more.
Should I tip on the pre-tax or post-tax amount?
Tipping on the pre-tax subtotal is technically correct and standard practice among etiquette experts. However, tipping on the post-tax total is also widely accepted and makes the math slightly easier. The difference is usually a dollar or two.
How do I split a tip evenly among a group?
Enter the total bill amount, select your tip percentage, and set the number of people in the 'Number of People' field. The calculator divides the total (bill + tip) equally among everyone.
Do I tip on alcohol at a restaurant?
Yes — tip percentages generally apply to the full bill including drinks. Some diners tip a flat $1–2 per drink for bar orders, but when the bartender is also your server or the drinks are part of a full dining bill, including them in the tip total is standard.