What is the standard tip percentage in the US?

In the US, the standard tip is 15-20% for sit-down restaurant service. 15% is considered average, 18-20% is good service, and 25%+ is exceptional. For delivery, 10-15% is common, with a minimum of $3-5 per delivery.

Should you tip before or after tax?

It is customary to tip on the pre-tax subtotal, though many people tip on the total including tax for simplicity. On a $50 meal with $5 tax, tipping 20% pre-tax gives $10 tip, while tipping on the total gives $11 tip — a small difference in practice.

How do you split a bill evenly between people?

Add the tip amount to the total bill, then divide by the number of people. For example: $120 bill + 20% tip ($24) = $144 total ÷ 4 people = $36 each. Our calculator shows the per-person amount automatically.

What industries typically expect tips?

Beyond restaurants, tipping is common for bartenders (15-20%), hotel housekeeping ($2-5/night), taxi/ride-share drivers (15-20%), hair salons (15-20%), food delivery (10-15%), and coffee shops (10-15%). Tipping customs vary significantly by country.

Is it rude not to tip?

In the US and Canada, not tipping at restaurants with table service is generally considered rude as servers often rely on tips for a significant portion of their income. In many other countries like Japan, tipping is not customary and can even be considered impolite.

How do I convert time between time zones online?

Enter your time in the input field, select your source time zone, and choose your destination zone — the converted time updates automatically. For scheduling meetings across multiple cities, use the World Clock & Scheduler which shows hourly time slots in up to 4 cities and lets you add the meeting to Google Calendar, Office 365, or Outlook directly.

How many kilometers are in a mile?

One mile equals exactly 1.609344 kilometers. To convert miles to kilometers, multiply the number of miles by 1.609344.

How do I convert Celsius to Fahrenheit?

To convert Celsius to Fahrenheit, multiply the temperature by 9/5 and add 32. For example, 100°C × 9/5 + 32 = 212°F.

How many pounds are in a kilogram?

One kilogram equals approximately 2.20462 pounds. To convert kilograms to pounds, multiply by 2.20462.

How many centimeters are in an inch?

One inch equals exactly 2.54 centimeters. This is a fixed conversion factor: to convert inches to cm, multiply by 2.54; to convert cm to inches, divide by 2.54.

How is BMI calculated?

BMI is calculated as weight in kilograms divided by height in metres squared (BMI = kg / m²). Categories: Underweight under 18.5, Normal 18.5–24.9, Overweight 25–29.9, Obese 30 and above.

What is compound interest and how do I calculate it?

Compound interest grows by earning interest on previously earned interest. The formula is A = P × (1 + r/n)^(n×t), where P is the principal, r is the annual rate, n is the compounding frequency, and t is the time in years. Use the Rule of 72 (72 ÷ rate%) to estimate doubling time.

Are exchange rates live and accurate?

Yes — currency rates come from the European Central Bank (ECB) via the Frankfurter API, updated daily. The historical chart shows 7, 30, or 90 days of rate movement for any supported currency pair.

Tip Calculator — How Much to Tip + Bill Splitter for Groups

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Unit Convert All !

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