Bill split calculator

Divide ₹100 between three people and the true answer is ₹33.3333…, which does not exist as a payable amount. Almost every calculator rounds each share to ₹33.33 and hands you a total of ₹99.99 — a missing paisa nobody notices until the amounts get larger or the splits get repeated.

This calculator allocates in whole minor units using the largest-remainder method. The shares are guaranteed to sum back to exactly what was paid, and the leftover unit is assigned to a named person rather than silently discarded. That is why one row is sometimes marked carries rounding.

It also respects how currencies actually work. Japanese yen have no minor unit, Kuwaiti dinars have three decimal places, and both are handled correctly instead of being treated as cents.

Splitting equally works when everyone consumed roughly the same. Use it for a shared taxi, a hotel room, or a group meal where nobody is keeping score.

Splitting by shares is for when they didn't. Give someone 2 shares and someone else 1 if one person had twice as much, or use shares to handle a couple paying as a unit. Shares are usually fairer than percentages because you don't have to make them add up to 100.

For anything recurring — rent, bills, a trip that runs over several days — a calculator stops being enough, because the real problem is remembering who paid what over time. That is what DueCircle does, and it is free too.