Tip Calculator — Split Bills & Gratuity

What this tip calculator does

This English-language tip calculator takes your bill amount and a tip percentage, then returns the tip, the full total, and — when you're splitting — each person's bill share and tip share as separate lines. Quick-tip buttons for 10%, 15%, 18%, and 20% save you from typing the most common rates. According to Square's 2024 Quarterly Report, the average restaurant tip in the U.S. hit 19.6%, so the 20% button sees a lot of use. Whether you're settling a dinner in Chicago or figuring out gratuity on a service that quoted a pre-tax price, the formula is straightforward: bill * tipPct / 100. 100% client-side — your data never leaves your browser. No uploads, no tracking, no server logs.

Features

Instant tip and total. Enter any bill amount and tip percentage; tip and total update as you type — no submit button needed.
Per-person bill split. Set how many people are splitting the check. Each person's bill share and tip share are shown separately, making on-the-spot reimbursement easy.
Quick-tip buttons. One-tap presets for 10%, 15%, 18%, and 20% cover every common rate from a casual café to a sit-down restaurant.
Tip percentage calculator. Works as a tip percentage calculator and a gratuity calculator in one — change the percentage field to any custom value, including decimals.
Tax-aware tipping guidance. The tool lets you enter either the pre-tax or post-tax bill. Tipping on the pre-tax amount is standard in most U.S. cities; tipping on the full post-tax total adds a few percent extra — worth knowing before you round up.
Runs fully offline. No network calls, no account, no app install. The split formula (bill * (1 + tipPct/100)) / numPeople runs entirely in your browser. If you also want to model how money grows over time, the [compound interest calculator](/en/compound-interest-calculator/) is one tab away.

How to use the tip calculator

Three fields are all you need. Fill them top to bottom and results appear immediately.

Enter the bill amount. Type the subtotal from your check. Use the pre-tax amount if you want to tip on the food and service only, or the post-tax total if your local custom includes tax.
Set the tip percentage. Tap a quick-tip button (10 / 15 / 18 / 20%) or type a custom value. The tip is computed as bill * tipPct / 100 — exactly what a restaurant tip calculator or gratuity calculator should do.
Specify how many people are splitting. Leave it at 1 for a solo check. Increase the count and you'll see each person's bill share and tip share listed individually.
Read the results. Tip amount, grand total, and per-person breakdown all update in real time. No rounding surprises — amounts are displayed to two decimal places.

Common use cases

Restaurant bill splits. The classic scenario: a table of friends in Chicago wants to divide the check fairly, with each person paying their exact bill share and tip share rather than guessing.
International travel. Tipping norms vary sharply by country. In the U.S., 18–22% at a sit-down restaurant is standard; in Japan and South Korea, tipping is not expected and can be declined; across most of Europe, a small rounding tip of 5–10% is common, or a service charge is already on the bill. This tip estimator works for any currency — just enter the local amount.
Pre-tax service quotes. Contractors, stylists, and tattoo artists often quote a pre-tax price. Enter that figure, pick your tip rate, and the tax and tip calculator output tells you the full amount to hand over.
Team meals and event reimbursements. When a team lunch needs to be expensed, having a clean per-person breakdown — bill share and tip share listed separately — makes the finance form straightforward. For bigger financial questions about the outing budget, the [loan calculator](/en/loan-calculator/) can help model repayment.
Verifying a service charge. Some restaurants include a mandatory service charge in the total. If you're unsure whether to add more, use this gratuity calculator to check what percentage the included charge already represents, then decide.

Frequently asked questions

Is my data stored or sent anywhere?

No. This is a 100% client-side tool — every calculation runs in your browser using JavaScript. Nothing is transmitted to a server, logged, or stored. You can use it on airplane mode and it works identically.

What tip percentage should I leave at a restaurant?

In the U.S., 18–20% is the current baseline for sit-down service; 15% is widely considered low. For counter service or takeout, 10–15% is common but discretionary. Norms differ abroad — many European countries include a service charge on the bill, and in Japan tipping is not part of the culture.

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

Either is acceptable, but tipping on the pre-tax subtotal is the more common U.S. convention. Tipping on the post-tax total effectively inflates the tip percentage by a few points. Enter whichever amount matches your preference — the calculator handles both.

What's the difference between a service charge and a tip?

A service charge is a fee added automatically by the venue; it may or may not go entirely to the server. A tip is a voluntary amount you add on top. Always check your bill before adding a gratuity — if you see a line for 'service charge' or 'gratuity included,' you may already be covered.

How does the per-person split work?

The total (bill + tip) is divided evenly: (bill * (1 + tipPct/100)) / numPeople. Both the bill share and the tip share per person are shown separately so it's clear what each person owes for food versus gratuity — useful when some guests drank and others didn't.

Can I use this as a tip calculator app on my phone?

Yes. The tool is mobile-optimized and works in any modern browser — no install required. It functions like a native tip calculator app but without the storage permissions or ads. The iPhone calculator tip shortcut is handy, but this version shows the per-person breakdown that the built-in calculator doesn't.