Tipping norms vary by country
In the US, 18–20% is expected. The UK sits at 10–12.5% (often as a service charge). Australia doesn't expect tips at all. Continental Europe tends toward 5–10% or rounding up. For your country, use one of the regional variants below.
Regional versions
For localised norms and currency, use:
How to calculate a tip
Multiply the bill by the tip percentage. For a $50 bill at 18%: 50 × 0.18 = $9. Total: $59.
Stacking discounts and tips
If the bill has already been discounted, the tip is typically calculated on the pre-discount total in the US (out of respect for the server's work), but customs vary — some diners tip on the final amount.
Frequently asked questions
Should I tip on the pre-tax or post-tax total?
Either is acceptable in most places. The difference is usually small.
What is a standard restaurant tip?
In the US, 15–20% is standard, with 18–20% common for good service. Norms are very different elsewhere.
How do I split a bill with an uneven tip?
Calculate the full total including tip, then divide by the number of people, or assign each person their items plus a proportional share of the tip.