Tip Calculator

A tip (gratuity) is a voluntary payment added to a bill to reward good service. Tip calculations are done as a percentage of the pre-tax subtotal or, in some countries, the full bill amount including tax.

The formula: Tip amount = Bill × (Tip percentage / 100) Total to pay = Bill + Tip amount

Standard tipping rates by country and context:

United States:

• Restaurants: 15–20% (18–22% for excellent service)
• Bars: $1–2 per drink or 15–20% of tab
• Taxi/rideshare: 10–15%
• Hotel housekeeping: $2–5 per night
• Food delivery: 15–20% of order value
• Hairdresser: 15–20%

United Kingdom:

• Restaurants: 10–15% (often optional/expected)
• Taxi: round up to nearest pound
• Not expected at bars or fast food

Europe:

• France, Germany, Spain: rounding up or 5–10% for good service
• Italy: 10–15% in tourist areas, less elsewhere

Splitting among multiple people: Total with tip ÷ number of people = amount per person

Worked example: Restaurant bill: $85.00 before tax Desired tip: 15% Tip amount = $85 × 0.15 = $12.75 Total = $85 + $12.75 = $97.75 Split between 4 people = $97.75 / 4 = $24.44 each

Add 8% sales tax to that bill and the arithmetic forks. Tipping on the pre-tax $85 still gives $12.75 and a $104.55 total. Tipping on the post-tax $91.80 gives $13.77, about a dollar more. The calculator shows both when you enter a tax rate, because point-of-sale terminals increasingly suggest the second one without saying so.

Service charge vs tip: Many restaurants outside the US add a service charge automatically, typically 10% to 12.5%, and in the UK a discretionary one can be removed if the service was poor. Check the bill before adding anything on top. Paying a 20% tip on a bill that already carries a 12.5% service charge is the most common way people accidentally tip twice.