Tip Calculator

Work out a tip, add tax, split the bill, and round the result — all in the browser tab. Nothing is sent anywhere: the arithmetic runs as local JavaScript and your bill never leaves the device.

Settling a Bill Without Doing Arithmetic in Public

Most people reach for a phone calculator at the end of a meal and then have to hold three numbers in their head at once: the bill, the tip, and how many ways it is being split. This page keeps all three in one place and shows the working, so the number you say out loud is one you can also explain.

• Bill amount and an optional tax percentage sit at the top; the tip percentage has both a slider and one-tap buttons for No Tip, 10%, 15%, 18%, 20% and 25%.
• A region selector fills in sensible presets rather than guessing at them: USA offers 15/18/20, Europe around 10, UK 10/12/15, Australia 5/10, and Japan is listed as 0 with no tipping expected. Custom leaves the slider entirely to you.
• Split mode has two entirely different meanings and the page keeps them apart: Equal split divides the total by a head count, while By percentage lets you enter a different share for each person, for example 60/40 when one side of the table drank the wine.
• The optional Bill Items table is for the awkward receipt: type each line with its own amount and its own tip percentage, and the tool totals the itemised tip rather than applying one rate to everything.
• A result breakdown shows the pre-tax subtotal, the tax as a dollar figure, the tip as a dollar figure, and the effective tip percentage actually achieved once item-level rates are mixed.
• Results can be copied in one tap, and the Tip History panel keeps previous calculations so the same table's earlier round is still there when the second bill arrives.

The Order in Which to Fill It In

1. Enter the bill amount, or add rows to Bill Items if you are itemising. When item rows exist they replace the single bill figure as the basis for the calculation, so you do not enter both.
2. Enter tax as a percentage only if you want it shown separately. If your bill already includes tax, leave this at zero and the subtotal you typed is treated as the whole pre-tip amount.
3. Pick a region to load that country's common tip rates, or drag the tip slider and ignore the presets entirely.
4. Choose Equal split and set the number of people, or choose By percentage and fill in each person's share. The shares are entered as percentages of the total, not as dollar amounts.
5. Choose a rounding mode, press Calculate, then use Copy Result or Save to History.

Why the Tip Comes Off the Pre-Tax Subtotal

Alternative	Notes
Tip on the pre-tax subtotal (what this tool does)	The conventional and widely-taught approach, and the one most tipping guides describe. It costs the diner slightly less and is easy to defend if questioned.
Tip on the tax-inclusive total	Simpler in the moment and what most phone calculators give you by default, because they apply one percentage to whatever number is on the receipt. On a 20% tip over an 8% sales tax it is roughly 1.6% more than the pre-tax method — small, but it is the difference between the two answers people argue about.
Doubling the tax	A fast American shortcut that lands near 16–17% in states with an 8–8.5% rate. It breaks completely outside the United States, where tax rates differ or are not shown on the bill.
A fixed dollar amount	What many regulars do at a place they visit often. No calculator required, and no way for the tool to help.

Example: Four People, One Shared Starter, One Abstainer

A bill comes to 148.00 in food and drink before tax, with a local tax rate of 8%. One person at the table did not drink and would rather not pay a share of the wine. Itemise instead of splitting equally.

• Add the food lines at a 20% tip rate and the drinks lines at 20% as well, then override the non-drinker's own line to 0. The item tips are summed individually rather than by averaging rates, so the arithmetic stays exact.
• Set tax to 8% and the tool computes tax on the itemised subtotal, which is what a receipt does.
• Switch split mode to By percentage and enter four shares that add to 100, for example 30/25/25/20, so the person who ordered least pays least.
• Press Calculate. The breakdown shows subtotal, tax, the blended effective tip rate, and each person's share as a dollar figure.
• Round the total rather than each share. The Nearest dollar mode rounds the final total once; rounding each person's portion separately and adding them back up can drift a cent or two from the total, which is a nuisance when someone pays by card and the rest in cash.

What the Rounding Menu Really Does

There are four rounding options and they behave differently once you look at the arithmetic. Nearest dollar (total) applies Math.round to the final total, so it moves the number by up to fifty cents and is the only option that reliably changes the amount anyone pays. Round tip up and Round total up work in cents — they take the ceiling of a figure already correct to two decimal places, so in practice they will usually leave the number exactly as it was. Round per-person up rounds each share upward to the cent. If your goal is a cleaner total, Nearest dollar is the one to pick; the other three exist for cases where you want nothing to round downward.

• The tip slider covers 0 to 100 percent, so a service charge already written into the bill can be entered as a tip and then set to zero if you prefer.
• Number of people cannot go below one — the field clamps rather than producing a division by zero.
• Bill Items and Tip History are held in your own browser. Clearing the history removes them from this device only.
• There is no upload step anywhere in the page. Open the browser's network panel while you calculate and no request carries the bill.

Tip Calculator Questions

Should I tip on the amount before or after tax?

Before tax is the conventional answer, and it is what this calculator does by default: the tip is taken from the subtotal and tax is added afterwards. If you would rather tip on the tax-inclusive total, enter the tax-inclusive figure as the bill amount and leave the tax field at zero — the maths then runs on that number instead.

How do I split a bill unequally?

Switch Split mode from Equal split to By percentage. A row appears for each person and you enter a percentage rather than a dollar amount; the shares are applied to the final total, so tax and tip are divided in the same proportion. Percentages that do not add to 100 are still calculated, but the shares will not add up to the total, so it is worth checking the row sums.

Can I set a different tip rate for each person at the table?

Not per person, but per item — and that covers most of the real cases. Enter each receipt line in the Bill Items table with its own amount and tip percentage. The tool then sums the item tips instead of applying one rate to everything, and reports the blended effective tip percentage in the breakdown.

Why is the tip I entered not the percentage shown in the result?

Because mixed item rates produce a blended figure. If some lines carry 20% and others carry 0%, the headline percentage you set is not what the arithmetic produces. The breakdown shows both the tip in dollars and the effective rate, which is the number to quote if anyone asks what was left.

Is my bill or my location stored anywhere?

No. The calculation runs as JavaScript inside the page, and the history feature writes to your own browser's storage on this device. There is no account, no server-side calculation, and nothing is uploaded — you can confirm this by watching the network panel while you use the tool.

Last verified: October 3, 2026

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Maintained by Huang Bin · Last updated October 3, 2026