Split Bill Calculator with Rounding and Uneven Shares
Enter the total and the number of people to see what each person owes. You can round each share up, down, or to the nearest 0.01, 0.1, 1, 5, or 10, so collecting the money is easy, and the leftover or shortfall from rounding is shown. If some people should pay more (for example a boss covering 1.5 times the share), set how many pay extra and by what multiple. Everything is calculated in your browser, and nothing you type is sent to a server. For sales tax, try the Tax Calculator; for proportions, try the Ratio Calculator.
🔒 Runs in your browser · Your data is never sent to a server
Notes
- Rounding up collects at least the total, and the difference is shown as extra. Rounding down or to the nearest can leave you short.
- People paying more are weighted by the multiplier before rounding. If everyone is set to pay more, the result is the same as an even split.
- The number of people can be 1 to 1000. Amounts are shown in US dollars, but the math works for any currency.
Glossary
Uneven (weighted) split
A way of splitting a bill where people pay different amounts, for example by seniority or what they ordered. Here you set how many people pay extra and by what multiple, and the total is divided by those weights.
Rounding up, down, and to the nearest
Used when the per-person amount doesn't divide evenly. Rounding up never leaves the organizer short, while rounding down gives tidy amounts but can leave a shortfall.
FAQ
What happens to the leftover when the bill does not divide evenly?
Each share is rounded to your chosen unit (0.01, 1, 10, and so on) using your chosen rounding, and the gap between the collected total and the real bill is shown as extra or short. For example, 100 split among 3 and rounded up to the nearest 1 is 34 each, which collects 2 extra.
Can some people pay more than others?
Yes. Set how many people pay more and by what multiple, and they are weighted accordingly. For a 120 bill among 3 people where one pays double, the weights are 2+1+1=4, so that person pays 60 and the other two pay 30 each.
Should I round up, down, or to the nearest?
Round up if the organizer should never be out of pocket (you may collect a little extra). Round down or to the nearest gives tidier amounts but can leave a shortfall, so check the difference before collecting.
Share this page