Tip calculator

How to use this page

1. Replace the sample numbers with your own. Nothing is sent to a server.
2. Read the result. It changes as you type.
3. Open the formula if you want to recompute the result by hand.
4. Copy the result if you want to keep it. The numbers you type stay in this browser and are not added to the address.

Formula

Tax = bill × tax rate ÷ 100. The tip base is either the bill, or the bill plus tax, depending on the switch. Tip = tip base × tip rate ÷ 100. Total = bill + tax + tip. Each person pays the total divided by the headcount, rounded down to the cent, yen, or won. If a few units are left, that many people pay one unit more. A check: a 10 bill, 10% tip, no tax, three people is an 11 total, two people at 3.67 and one person at 3.66 in US cents.

Tip is optional in the formula

In the United States a restaurant tip is often 15% to 20% of the pre-tax bill, and some people tip on the after-tax total. The switch is there for that choice. Korea and Japan usually do not add a tip. For those bills, use Split a bill, which has no tip field.

The sample tip on the English page is not a rule of etiquette. Replace it. A 0% tip is a valid input.

Why one person pays a unit more

Three people cannot evenly split 11.00 dollars to the cent. 3.66 × 3 = 10.98, which is short two cents. Two people pay 3.67 and one pays 3.66. The page reports how many people pay the extra unit. It does not decide who that person is.

Tax here is a single rate on the whole bill. A bill with a reduced rate on some items and a standard rate on others should be split before you start, or typed as one effective tax amount by putting the tax money into the rate. If you already know the tax in money, adjust the rate until the tax line matches the receipt.

Easy mistakes

• Tipping on a bill that already includes a service charge, and also tipping on tax, without meaning to.
• Splitting a bill that includes someone else's untipped item and then arguing from an even share.
• Forgetting that the per-person figure is the lower share when a remainder is shown.