# Free online tip calculator

> A tip is extra money you leave for service. This calculator figures the tip and the total, and splits the bill across any number of people.

Calculate tip amount, total bill, and per-person split for any party size. Quick preset buttons for common tip percentages.

**Interactive version:** https://onlinecalculator.me/everyday/tip/
**Category:** Everyday

## How to use

1. Enter the bill amount.
2. Pick a tip percentage — use the quick buttons or type your own.
3. Set how many people are splitting the bill.
4. All four amounts update instantly: tip, total, per-person, and tip-per-person.

## The formula

```
T = B × (p / 100)
S = B + T
S ÷ N
T ÷ N
```

<ul>
  <li><code>B</code> — <span>Bill amount ($)</span></li>
  <li><code>p</code> — <span>Tip (%)</span></li>
  <li><code>T</code> — <span>Tip amount</span></li>
  <li><code>S</code> — <span>Total bill</span></li>
  <li><code>N</code> — <span>Split between</span></li>
</ul>

## Worked examples

### Dinner bill of $87.50, 18% tip, split 3 ways

- Tip: $87.50 × 0.18 = **$15.75**
- Total: $87.50 + $15.75 = **$103.25**
- Per person: $103.25 / 3 = **$34.42**
- Tip per person: $15.75 / 3 = **$5.25**

### Unequal split — two people, one ordered more

Suppose the bill is $60 with 20% tip and person A's food was $40, person B's was $20:

- Tip: 60 × 0.20 = $12
- A's share: 40 + (40/60) × 12 = 40 + 8 = **$48**
- B's share: 20 + (20/60) × 12 = 20 + 4 = **$24**

Each person tips proportionally to what they ordered.

## Notes

- **Standard US percentages** — 15% is the floor for adequate sit-down service, 18–20% is the default, 22%+ for excellent service or expensive wine. Counter service and takeout are 10% or nothing.
- **Pre-tax vs. post-tax** — most etiquette guides tip on the pre-tax total. The difference is usually under a dollar; don't lose sleep over it.
- **Automatic gratuity** — parties of 6–10 and up often trigger an auto-added 18–20% service charge. Read the bill before adding a second tip.
- **Rounding up** — many people round the per-person total to an even dollar. A $34.42 share becomes $35; the extra 58¢ is effectively a slightly higher tip.
- The calculator requires at least 1 person (zero or negative defaults to 1).

## Frequently asked questions

### How is the tip amount calculated?

Tip = bill × (tip% / 100). Total = bill + tip. Per-person = total / number of people. Tip per person = tip / number of people.

### What is the standard tip percentage?

In the US, 15–20% is standard for sit-down restaurant service. 18–22% is more common in cities. 20% is increasingly the default option on card readers. For counter service or takeout, 10–15% (or nothing) is typical.

### Should I tip on the pre-tax or post-tax amount?

Most etiquette guides say tip on the pre-tax total — tip on service, not the government cut. Either way is acceptable; the difference is usually small.

### How do I split a bill unevenly?

This calculator divides evenly by default. For uneven splits, calculate the total with tip, then divide according to each person's share of the pre-tip bill.

### Can I share a tip calculation?

Yes — press "Share with my numbers" to encode your bill, tip %, and party size in the URL and copy it to your clipboard.

## Sources

- [Gratuity — tipping customs and percentages](https://en.wikipedia.org/wiki/Gratuity) — Wikipedia
- [General Tipping Guide](https://www.emilypost.com/advice/general-tipping-guide) — The Emily Post Institute

## Related calculators

- [Percentage calculator](https://onlinecalculator.me/math/percentage/) — Five percentage calculations — of, what percent, change, increase, decrease.
- [Loan calculator](https://onlinecalculator.me/finance/loan/) — Monthly payment and total interest for any fixed-rate installment loan.
- [Fraction calculator](https://onlinecalculator.me/math/fraction/) — Add, subtract, multiply, and divide fractions with instant simplification.
- [Date difference calculator](https://onlinecalculator.me/everyday/date-difference/) — Count days, weeks, months, and business days between two dates.

---

Part of [onlinecalculator.me](https://onlinecalculator.me/) — free calculators that run entirely in your browser.
Machine-readable index: https://onlinecalculator.me/llms.txt