Split a bill and calculate the tip.
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Multiply bill by desired tip percent, add to bill, divide by number of people if splitting.
US customary is 15–20% for standard service, 20–25% for excellent. Tipping is smaller or optional in most of Europe and Asia.
Splitting a bill evenly is simplest, but it can feel unfair if orders were very uneven — some groups prefer splitting the tip proportionally to what each person ordered instead.
$50 bill × 18% = $9.00 tip → $59.00 total. Split between 2 people: $29.50 each.
Convention is pre-tax. Many people tip on the total for simplicity. On big bills it matters; on small ones it's cents.
The delivery fee usually goes to the platform, not the driver. Tip the driver separately — 15–20% of the food order is baseline.
10% for takeout that involves prep and packing; nothing expected for simple counter service in many regions.
Rarely to the same degree. Many European countries have service charges built in or round up modestly; Japan often considers tipping unnecessary or even mildly rude. Check local norms before traveling.