usefulweb.site Tip & Bill Split Calculator

Everyday calculators

Tip & Bill Split Calculator

Tip, tax and who pays what: split a bill equally, by shares or by items, rounded up.

Display only, e.g. €, $, £, CHF.

The amount printed on the bill (before tip).

%
%

Used when the list of people below is empty.

People

Optional for an equal split. Shares: weight per person (default 1). Items: the bill amount of what each person ordered, in the same terms as the bill (with tax if tax is included); anything not assigned is shared equally.

People
#NameSharesOrdered items
1
2
3
4

Any rounding difference is added to (or taken from) the tip.

Try an example: Dinner for 4 in Germany, 84.50 incl. VAT, 10% tip, round up to 1 · US restaurant, 120 + 8.875% sales tax, 20% tip on pre-tax, by items · Couple + 2 singles by shares, fixed tip 15

How it works

Enter the bill, the tax rule (included as in most of Europe, or added at the till as in the US) and a tip as a percentage or an amount, before or after tax. Split equally, by shares or by what each person ordered, round each share up to 0.50 or 1, and get an exact who-pays-what table that adds up to the cent.

  • Tax included (VAT): subtotal before tax = bill ÷ (1 + rate); tax = bill − subtotal. Tax added (sales tax): tax = bill × rate, rounded to the cent; bill total = bill + tax.
  • Tip = tip % × tip base, where the base is the subtotal before tax or the total with tax (your choice), rounded to the cent; or a fixed tip amount.
  • Weights: equal = 1 per person; shares = the share you enter; items = each person's ordered amount plus an equal part of anything not assigned to anyone.
  • Bill, tax and tip are each split by weight with the largest-remainder method in whole cents, so the shares add up exactly to the totals.
  • Rounding is applied per person to their exact total; the difference between what is collected and the exact total goes to the tip and is shown separately.

For scripts and AI agents

  • JSON API: POST https://tipbillsplitcalculator.usefulweb.site/api/v1/calculate (same calculation as this page)
  • Interface description: OpenAPI 3.1 · AI guide: llms.txt
  • MCP server (Streamable HTTP): https://tipbillsplitcalculator.usefulweb.site/mcp · tool name tip_bill_split_calculator
Example request
curl -s -X POST https://tipbillsplitcalculator.usefulweb.site/api/v1/calculate \
  -H 'content-type: application/json' \
  -d '{"symbol":"€","billAmount":84.5,"taxMode":"included","taxPercent":19,"tipMode":"percent","tipPercent":10,"tipBase":"post-tax","splitMode":"equal","people":4,"rounding":"up-1"}'
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