Tip Calculator

How a Tip Works

A tip (or gratuity) is a percentage of the bill added on top to thank the person serving you. You work it out like any percent - bill times the percent - then add it to the bill for the total. If a group is sharing, split that total evenly between them.

The bar under the calculator shows the bill (blue) with the tip added on (green), so you can see how much the total grows.

Tip Formula

$$\begin{aligned} \text{tip} &= \text{bill} \times \frac{\text{percent}}{100} \\ \text{total} &= \text{bill} + \text{tip} \\ \text{per person} &= \frac{\text{total}}{\text{people}} \end{aligned}$$

How to Use It

1. Enter the bill amount.
2. Enter the tip percentage you want to leave.
3. Set split between if more than one person is paying.

Worked Examples

Bill	Tip %	Tip	Total
50	15%	7.50	57.50
80	18%	14.40	94.40
120	20%	24	144
40	10%	4	44

Splitting a 60 bill with a 20% tip: the total is 72, and split 4 ways that is 18 each.

Common Uses

• Restaurants, cafes, and bars.
• Splitting a shared bill fairly.
• Tipping for delivery, rides, or services.

FAQ

How do you calculate a tip?

Multiply the bill by the tip percentage. For a 15% tip on 50: $50 \times 0.15 = 7.50$, so the total is $57.50$.

What is a normal tip percentage?

In the US, 15–20% of the bill is common for table service. Norms vary by country and service, so adjust to your local custom.

How do you split a bill with the tip included?

Add the tip to the bill, then divide by the number of people. A 72 total split 4 ways is $\frac{72}{4} = 18$ each.

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

Both are common. Tipping on the pre-tax amount is slightly lower; many people tip on the total for simplicity.