Tip Calculator

About the Tip Calculator

Tipping looks simple — multiply the bill by a percentage — but in practice people get tripped up by tax-inclusive bills, large parties, foreign customs, and the dreaded 'do I tip on tax?' question. This page explains the maths, the etiquette, and the edge cases so you never overthink a bill again.

The Formula

Tip = Bill × (Tip% ÷ 100). Total = Bill + Tip. Per person = Total ÷ Number of people.

Worked Example

A $84.50 restaurant bill at 20% tipping for two people: Tip = 84.50 × 0.20 = $16.90. Total = $84.50 + $16.90 = $101.40. Per person = $101.40 ÷ 2 = $50.70. Round up to the nearest dollar and the tip becomes $17.50 and each person pays $51.00.

Standard tip percentages in the US

Restaurant table service: 15% for adequate, 18-20% for good, 20-25% for exceptional service. Food delivery: 15-20% of the food total (not including delivery fee, which usually does not go to the driver). Coffee shops and counter service: $1-2 or 10-15% if you visit regularly. Bartenders: $1-2 per drink, or 20% for a tab. Taxi and rideshare: 15-20%, or round up to the nearest dollar for short trips. Hair and beauty services: 15-20%. Hotel housekeeping: $2-5 per night. Bell staff: $1-2 per bag.

Do I tip on the tax portion of the bill?

Technically tax is government revenue and not part of the server's labour, so tipping on the pre-tax subtotal is mathematically correct. In practice almost no one bothers — the difference on a $50 bill at 8% sales tax is roughly 80 cents. Calculate it the way that feels right and move on with your evening.

Splitting a bill among friends

Two ways to split: even (everyone pays the same), or itemised (everyone pays for what they ordered, with tip and tax allocated proportionally). For mixed orders, itemised is fairer — use the split-bill calculator. For drinks-and-shared-food nights, even splitting is faster and usually nets out the same.

Common Mistakes

• Tipping on the post-tax total in high-tax states (NYC, Chicago) — it adds 1-2% to your tip without you realising.
• Tipping on the gross delivery total when the delivery fee is large — the driver may not see a cent of that fee.
• Forgetting that 'gratuity included' bills already have an 18-20% service charge added for large parties. Don't double-tip.
• Calculating tip then dividing by people with a remainder. Round up so the server isn't shortchanged by 30 cents.

Frequently Asked Questions

Is tipping the same in every country?
No. In the US tipping is part of the wage structure and 18-20% is expected. In most of Europe, service is included and a small round-up (5-10%) is appreciated but optional. In Japan and South Korea tipping can be considered rude. Always check local custom before travelling.

Should I tip on the alcohol portion of a restaurant bill?
Yes, in the US — bartenders and servers split tips on the full bill. The wine markup might feel high, but the standard tip percentage applies to the entire pre-tax total.

How much do I tip for take-out?
10% is generous and 0% is acceptable. If staff prepared a complex order, packed it carefully, or carried it to your car, round up to 10-15%.

This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Consult a licensed professional before making significant financial decisions.