Itemized Bill Split Calculator

How it is calculated

Type one item per line in the form Name: amount. The tool splits each line at its last colon, so the part before is the person and the part after must be a plain number. Several lines with the same name are added together (names are case-sensitive, so Ana and ana count as two people). Everyone's items are summed into a personal subtotal, and the tax and tip percentages are then added on top of the whole subtotal: owed = subtotal × (1 + tax% ÷ 100 + tip% ÷ 100). Tax and tip are added together, not compounded, so the tip is figured on the pre-tax amount. Because the same factor applies to everyone, each person pays their own share of tax and tip. If tax or tip is left empty it counts as 0. The total of all items must be above zero. A line without a colon, a name with no text or an amount that is not a number stops the calculation. Dollar signs on the results are only symbols.

Common mistakes

• Writing the amount with a currency sign or a decimal comma, such as Ana: $12 or Ana: 12,50. The amount must be a plain number with a decimal point (12.50), otherwise the tool returns nothing.
• Forgetting the colon. A line such as Ana 12 has no separator, and a single bad line stops the whole result.
• Spelling a name differently on two lines, for example Ana and ana. They are treated as two different people, so they get two separate shares.
• Entering the tax and tip as amounts of money. The two fields are percentages, so type 15 for a 15% tip, not 11.40.
• Including the tax or tip already printed on the receipt as an item. The tool adds tax and tip itself, so the lines should be the pre-tax item prices; otherwise they are counted twice.