Question 1

How is the per-person amount calculated?

Accepted Answer

The bill is multiplied by the tip and tax percentages to get the grand total, then divided by the number of people. Per person = (bill x (1 + tip/100) x (1 + tax/100)) / people.

Question 2

Should tip be calculated before or after tax?

Accepted Answer

This tool applies tip to the pre-tax bill, then adds tax, which is the most common convention. The difference is usually small, and the breakdown shows exactly how the total is built up.

Question 3

What does the rounding option do?

Accepted Answer

Rounding adjusts each person's share up, down, or to the nearest unit (e.g. nearest $1 or 100 yen) so payments are easy to hand over. The tool shows the total collected and any small surplus or shortfall versus the exact bill.

Question 4

What is a normal tip percentage?

Accepted Answer

In the US, 15-20% is typical at restaurants. Many countries include service in the bill and tipping is optional or not customary, so set the tip to 0% where it does not apply.

Question 5

Is anything uploaded?

Accepted Answer

No. All bill-split calculations run locally in your browser. Nothing is sent to a server.

Bill Split& Tip Calculator

Bill Split
& Tip Calculator