Splitting a bill evenly is division, but the awkward part is what happens either side of it. The tip should be added before the division, not after, or the person collecting ends up short. And the result is almost never a round number, which is why this calculator also shows the rounded figure and the surplus it generates.
The extra-share input handles the common case where one person covers something the others should contribute to separately — a taxi, a shared bottle, a birthday cake the guest of honour should not pay for. Adding it to the pot before dividing keeps the arithmetic honest without a spreadsheet.
On the defaults, a $186.40 bill with a 15% tip comes to $214.36. Split 5 ways that is $42.87 each. Rounding up to $43.00 collects $215.00, leaving $0.64 over.
The formula
bill- Total on the bill
tip%- Tip added before dividing
extras- Anything else going into the pot
people- Number sharing it
How to use this calculator
- Enter the bill total as printed.
- Set the tip percentage; it is added before the split.
- Add any extras that should be shared, such as a taxi.
- Enter how many people are sharing; the gauge shows the amount each.
Worked examples
$186.40 between 5
A 15% tip adds $27.96, giving $214.36. Divided by 5 that is $42.87 each. If everyone sends $43.00 the pot holds $215.00, $0.64 more than needed.
One person covers a taxi
Adding a $40 taxi to the pot raises the total to $254.36 and the share to $50.87 each. The person who paid for the taxi is owed $50.87 minus the $40 they already spent, so they should transfer $10.87 in.
How to read your score
Frequently asked questions
Should the tip be added before or after splitting?
Before. Splitting the bill first and asking everyone to add their own tip produces inconsistent amounts and usually leaves the person paying the card short.
Is an even split fair when people ordered differently?
Not always, and it is worth saying so before the bill arrives rather than after. An even split works well when orders are broadly similar; when one person had only a salad and others had steak, itemising is kinder.
How should drinks be handled?
Many groups split food evenly and drinks separately, since alcohol consumption varies most. Put the drinks total in the extras field for the people sharing them and run the calculation twice.
Why does the rounded total collect more than the bill?
Because rounding each share up can only ever add. The surplus is small and usually goes toward the tip or the next round, but it is shown here so nobody is confused about where it went.
What about a service charge already on the bill?
Set the tip to zero if service is included, otherwise you will tip twice. The service charge is already inside the bill total you entered.
Split reference
| Bill | 2 people | 3 people | 4 people | 6 people |
|---|---|---|---|---|
| $60.00 | $34.50 | $23.00 | $17.25 | $11.50 |
| $100.00 | $57.50 | $38.33 | $28.75 | $19.17 |
| $186.40 | $107.18 | $71.45 | $53.59 | $35.73 |
| $250.00 | $143.75 | $95.83 | $71.88 | $47.92 |
| $400.00 | $230.00 | $153.33 | $115.00 | $76.67 |
All figures include a 15% tip added before the division.