Advanced Tip Splitter
Split a restaurant bill with tip among any number of diners.
Supports unequal splits where each person pays different amounts with exact share breakdown.
The basic math
Equal split: per person = (bill + tip) ÷ number of people
Unequal split: each diner gets a weight; their share is (bill + tip) × (their weight ÷ total weights).
A $120 bill with 20% tip ($24) split equally among 4 people = $36 each. Same bill, but person 1 ordered double what everyone else did: weights “2, 1, 1, 1” (total 5). Person 1 pays $144 × 2/5 = $57.60. The other three pay $144 × 1/5 = $28.80 each.
US tipping standards as of 2024
The expectations have crept up steadily. Where 15% was the standard 20 years ago, 18 to 22% is now the unstated norm in most sit-down restaurants:
| Service | Expected tip |
|---|---|
| Sit-down restaurant — average service | 18% |
| Sit-down restaurant — good service | 20% |
| Sit-down restaurant — exceptional | 22 to 25% |
| Bar / cocktail (per drink) | $1 to $2 per drink, or 20% of tab |
| Coffee shop / quick counter | $1 to $2, or 10-15% (controversial) |
| Hair salon | 18 to 22% |
| Hotel housekeeping | $3 to $5/night |
| Hotel bellhop | $2 to $5 per bag |
| Food delivery (DoorDash, Uber Eats) | 15 to 20%, $3 minimum |
| Pizza delivery | $3 to $5 for cheap, 15% for larger orders |
| Taxi / Uber | 10 to 15% |
| Tattoo artist | 20% |
| Massage therapist | 18 to 20% |
| Movers | $5 to $10/hour per mover |
| Furniture delivery | $5 to $20 depending on difficulty |
The “tip on tax or pre-tax” debate
Technically, tip is on the pre-tax bill. Practically, most people tip on the post-tax total because it’s easier. The difference is small — 8% sales tax × 20% tip = 1.6% of the bill. On a $100 dinner, the difference between tipping pre-tax and post-tax is roughly $1.60. Not worth the calculation; tip on whatever’s easier.
When the bill auto-tips
Many restaurants auto-add 18 to 20% gratuity for parties of 6 or more (some now do it for 4+). Always check the bill before adding additional tip — auto-gratuity is the most common cause of “I tipped twice on accident.”
Splitting an unequal meal — the awkward conversation
The actual hardest part of dining out with friends isn’t the math; it’s the social calculus when someone ordered an $80 steak and three drinks while you had a $14 pasta and water. Three honest approaches:
- Strict per-item. Each person pays for what they ordered plus their share of tax and tip. Most accurate; can feel transactional.
- Even split. Everyone pays the same. Easy; can feel unfair if appetites diverge significantly.
- Loose-even. Heavy drinkers/eaters volunteer to throw in $10-20 extra. Common in friend groups.
The unequal-split mode of this calculator handles the per-item approach numerically — enter weights that roughly match what each person ordered.
Tipping internationally
Many countries explicitly do not tip the way Americans do:
| Country | Convention |
|---|---|
| Japan, South Korea | No tipping; can be insulting |
| Australia, New Zealand | Optional; rounding up only |
| Most of EU (France, Italy, Spain, Germany) | 5 to 10% if great service; service charge often included |
| UK | 10 to 12.5%; often “service charge” already on bill |
| Iceland | No tipping; built into prices |
| Mexico, Latin America | 10 to 15% common |
| China | Generally no tipping (changing in tourist areas) |
| Most Middle East | 10 to 15% in restaurants |
US tipping culture is genuinely an outlier internationally. Travelers often offend or confuse staff by either over-tipping (Japan) or under-tipping (back home).
The 50/50 split for couples / partners — pre-tip math
Many partners use a 50/50 approach but skip the tip share equation: split the bill 50/50, then one partner picks up the tip entirely. Mathematically the same as 50/50 on the total but feels cleaner socially. Same trick works for “I’ll buy dinner, you cover the tip.”
The credit card “tip line” trap
When you sign a credit card receipt, the tip line and total line are both editable until processing settles. Always fill both lines yourself, draw a line through any blank ones, and keep the customer copy. The “extra zero added to the tip” scam is rare but real — typically by drawing in a 0 after your tip amount, $4.50 becomes $45.00. Drawing lines through blanks defeats this.
The “would you pay it on a paper map” rule
The single best tipping advice for travel: tip what you’d be embarrassed to be seen leaving if a local friend was at the table. Above that and you’re flaunting. Below that and you’re stingy. The number doesn’t need to be a percentage; it needs to be defensible.