Bill Splitter

When to use it

Split a bill when a group shares one total: a restaurant table, a taxi, a holiday rental, or the grocery pot in a shared flat. The page answers one question — what does each person owe once the tip is included — the same way every time, so nobody has to defend their mental arithmetic at the end of the meal.

It divides evenly, which suits groups that ordered together or agreed to share. Where shares are genuinely uneven, add up each person's own items first and use this page only for the tip and its division. If the bill already carries a printed service charge, enter the total as printed and leave the tip field at whatever extra you want to add — otherwise you tip twice.

How the maths works

Each share = bill × (1 + tip ÷ 100) ÷ people. The tip is charged on the whole bill and then divided with everything else. Because multiplication and division commute, adding the tip first and dividing afterwards gives exactly the same figure as dividing the bill first and adding each person's slice of the tip. Only the final amount is rounded, to two decimals.

The tip field is a percentage: 10 means ten per cent, not ten units of currency. The people field is rounded down, so 4.9 is treated as four people.

A worked example

Four people share a 120 bill and decide on a 10% tip.

1. Tip on the whole bill: 120 × 10 ÷ 100 = 12.00.
2. Total to settle: 120 + 12 = 132.00.
3. Each person pays: 132 ÷ 4 = 33.00.
4. Sanity check: 33.00 × 4 = 132.00.

The result panel repeats that reasoning: 33.00 each, with the total with tip (132.00), the tip itself (12.00) and the number of people used (4) underneath, so a mistyped bill or tip is easy to spot.

Shares at a glance

Only the divisor changes across the last three columns. Cash rarely lands on the cent, so most groups round up and leave the change.

Mistakes that quietly skew the answer

• Typing 0.10 instead of 10. The field wants a percentage, so 0.10 adds a single cent to a 120 bill.
• Splitting the percentage instead of the money. Four people paying 10% does not mean 2.5% each; the tip is 12.00 and each pays 3.00 of it.
• Tiping a bill that already includes service. Check the receipt first, or the printed charge is paid twice.
• Forgetting tax. The tool divides the number you type, so type the total the venue charges you, tax and service included.

Keep exploring

• Tip Calculator — the tip and total for one payer, with the same percentage field.
• Sales Tax Calculator — add or extract the tax inside a total before you divide it.
• Unit Price Comparison — check which pack was really the better deal on that shared shop.