Tip calculator
Calculate tip amount and total bill instantly. Works for restaurants, delivery, hair salons, and any tipping situation.
How to calculate a tip
Formula: Tip Amount = Bill × (Tip% ÷ 100)
For example, on an $85 bill at 18%: $85 × 0.18 = $15.30 tip. Total = $85 + $15.30 = $100.30.
Quick mental math tricks
10% tip: Move the decimal point one place left. $85.00 → $8.50.
15% tip: Calculate 10%, then add half of that. $8.50 + $4.25 = $12.75.
20% tip: Calculate 10% and double it. $8.50 × 2 = $17.00.
25% tip: Divide the bill by 4. $85 ÷ 4 = $21.25.
Standard tipping guide
Restaurants: 15–20% for table service, 10% for takeout or buffet.
Delivery: 15–20% or $5 minimum, whichever is more.
Hair salon / barber: 15–20% of the service cost.
Taxi / rideshare: 15–20% of the fare.
Hotel housekeeping: $2–5 per night.
Frequently asked questions
Is 20% a good tip?
Yes — 20% is considered generous and is the standard for great restaurant service in the US.
How do you split the bill with tip?
Calculate total (bill + tip), then divide by the number of people. For $100.30 split 4 ways: $25.08 per person.
Should you tip on tax?
Tipping on the pre-tax amount is standard, though tipping on the total including tax is also common and more generous.