Tip Calculator

How It Works

A tip is a percentage of the bill. The formulas are simple: tip = bill × tip % ÷ 100, total = bill + sales tax + tip, and each person pays = total ÷ number of people. If you enter a sales tax, the tax is worked out on the bill first; you can choose whether the tip is calculated on the amount before tax (the usual convention) or after tax.

When a total does not divide evenly, the shares are worked out to the cent so they add up to the total exactly: each share is rounded down to the cent and the leftover cents go to the first shares, one cent at a time. Rounding up to whole dollars is optional and makes cash payments easy.

Worked example: an $80 bill with an 18% tip and no tax. The tip is $80 × 18% = $14.40, and the total is $94.40. Split between 3 people, each person pays $94.40 ÷ 3 = $31.47, $31.47 and $31.46, so the shares add up to $94.40 exactly. With rounding up, each person pays $32 and the total becomes $96.

How to Use This Calculator

This calculator works out the tip, the total bill and each person's share in seconds — ideal at the table when the bill arrives. Everything updates live as you type.

1. Enter the bill amount. Use the subtotal before tip. If you plan to add tax below, enter the pre-tax amount; if tax is already included in the bill, enter the total and leave tax at 0.
2. Pick a tip percentage. Type any percentage, or tap a quick pick — 10%, 15%, 18%, 20% or 25%. The default is 18%, a common choice for good service in the US.
3. Add sales tax (optional) and choose the tip base. Enter the tax rate if it is not already in the bill, then choose whether the tip is calculated on the amount before tax (the usual convention) or after tax.
4. Set the number of people. The total is split evenly, worked out to the cent so the shares add up to the total exactly.
5. Round up for cash (optional). Tick the round-up box and each share is taken to the next whole dollar — the calculator shows the rounded total and the effective tip percentage.

For example, an $80 bill with an 18% tip and no tax gives a $14.40 tip and a $94.40 total. Split between 3 people, the shares are $31.47, $31.47 and $31.46. With rounding up, each person pays $32 and the total becomes $96. A comparison table below the result shows the same bill at 10%, 15%, 18%, 20% and 25%.

Tips and Practical Advice

Tipping customs vary by place, and the percentages on this page follow common US practice for sit-down restaurants. In the United States, 15% is the usual floor for adequate service, 18% to 20% is standard for good service, and 20% or more is for great service. These are customs, not rules — tip what the service was worth to you.

• Check the bill before adding a tip. Some restaurants add an automatic gratuity for larger parties — tipping again on top means paying twice. Look for a "gratuity" or "service charge" line first.
• Tip on the pre-tax subtotal by default. The tip rewards the service, not the tax. Tipping on the after-tax total is also common and is slightly more generous — this calculator lets you choose either way.
• Agree the split before ordering. An even split is simplest, but if one person ordered far more than the rest, settle that before the bill arrives.
• Use the comparison table to decide. If you are torn between 18% and 20%, the table shows the difference in dollars — often just a dollar or two per person — which makes the decision easy.
• Keep the receipt. A quick photo of the itemized bill settles any later question about what was charged.

This calculator splits the bill evenly between everyone. If people ordered very different amounts, work out each person's share of the subtotal separately and tip on each share instead.

Frequently Asked Questions