Work out the tip, the grand total and each person's share when splitting a bill.

How a tip is calculated

The tip is a percentage of the bill; the total adds it on; the per-person share divides the total by the number of people:

tip = bill × (percent ÷ 100)

total = bill + tip · each = total ÷ people

Worked example

A $60 bill at 18% gives a $10.80 tip and a $70.80 total. Split between 2 people that's $35.40 each.

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

Customarily on the pre-tax bill, but tipping on the total is also common and only a small difference.

What if service charge is already included?

If a gratuity is already on the bill, an extra tip is optional. Enter 0% here.