Free · no signup · to-the-cent shares
Split Bill Calculator
Dinner for six shouldn't need spreadsheet skills. Enter the bill, the tip, and the head count — everyone's share appears instantly, tip included.
Short answer
To split a bill: add the tip to the bill, then divide by the number of people. A $120 dinner with a 20% tip is $144 total — $36 each for four people, $24 each for six. Splitting evenly is the social default; if one person's share was far larger, most groups just handle it separately rather than itemizing. The calculator handles any combination to the cent.
Each of 4 people pays
$18.00
- Tip (20%)
- $12.00
- Bill + tip
- $72.00
- Tip per person
- $3.00
About the numbers
Two conventions worth knowing: the tip is usually calculated on the pre-tax amount in principle, but in practice most people tip on the total — the difference on a typical bill is small change. And when the cents don't divide evenly, someone rounds up; the calculator shows exact shares so the rounding is at least visible.
Tip amounts by bill and percentage
| Bill | 10% | 12% | 15% | 18% | 20% | 22% | 25% |
|---|---|---|---|---|---|---|---|
| $20.00 | $2.00 | $2.40 | $3.00 | $3.60 | $4.00 | $4.40 | $5.00 |
| $40.00 | $4.00 | $4.80 | $6.00 | $7.20 | $8.00 | $8.80 | $10.00 |
| $60.00 | $6.00 | $7.20 | $9.00 | $10.80 | $12.00 | $13.20 | $15.00 |
| $80.00 | $8.00 | $9.60 | $12.00 | $14.40 | $16.00 | $17.60 | $20.00 |
| $100.00 | $10.00 | $12.00 | $15.00 | $18.00 | $20.00 | $22.00 | $25.00 |
| $150.00 | $15.00 | $18.00 | $22.50 | $27.00 | $30.00 | $33.00 | $37.50 |
Tip = bill × percent. US norms: 15% baseline, 18–20% for good table service, 20%+ for exceptional; counter service is discretionary.
How we calculate this
Simple math, plus the conventions people actually argue about:
- Tip. bill × tip percent. The quick mental route: 10% is the decimal moved one place, 20% is double that, 15% is one-and-a-half.
- Total & split. total = bill + tip; each person's share = total ÷ people, computed to the cent so the rounding is visible.
Assumptions
- Percentages here apply to the amount you enter — enter the pre-tax subtotal if you prefer the stricter convention, or the total most people actually use.
- Tipping norms are US restaurant conventions, not rules — other countries (and counter service, delivery apps, and included service charges) differ substantially.
- Even splitting is assumed; itemized splitting is a spreadsheet job by choice.
Last reviewed: July 25, 2026
Frequently asked questions
How do I calculate a tip?+
Multiply the bill by the tip percentage: a 20% tip on $60 is 60 × 0.20 = $12, making the total $72. The no-phone method: move the decimal one place left for 10% ($6 on $60), then double it for 20%, or add half again for 15%. The calculator does the exact math and splits the total across your table.
How much should I tip at a restaurant?+
US convention for table service: 15% is the traditional baseline, 18–20% is standard for good service today, and 20%+ signals exceptional. Counter service and takeout are discretionary (often 0–10%), delivery typically 10–15% with a minimum for small orders. These are norms, not laws — and in many other countries service is included and tipping is minimal.
Do I tip on the pre-tax amount or the total?+
The traditional rule says pre-tax subtotal; in practice most people tip on the after-tax total because that's the number staring at them. The real difference is small — on a $60 bill with 8% tax, tipping 20% on the total versus the subtotal changes the tip by under a dollar. Pick one convention and don't overthink it; the calculator applies your percentage to whatever amount you enter.
How do we split the bill fairly?+
Add the tip first, then divide the total by the number of people — a $120 dinner at 20% is $144, so $36 each for four. Even splitting is the social default and worth small imbalances in most groups; when one person's share is wildly different, handling their items separately beats itemizing everything. The calculator shows each person's share, tip included, to the cent.
What is a 20% tip on common bills?+
Move the decimal and double: $4 on $20, $8 on $40, $12 on $60, $20 on $100, $30 on $150. Twenty percent has become the standard 'good service' tip in the US precisely because the mental math is instant. The per-percentage pages on this site have the full quick tables for 10% through 25%.
Is my bill information stored anywhere?+
No. The math runs entirely in your browser — the bill amounts and party sizes you enter are never uploaded, stored, or tracked. It's a calculator, not an app: no accounts, no history, nothing to delete.
Also try the Tip Calculator.