Bill Splitter

Splitting a restaurant bill in your head, at the till, with everyone waiting, is harder than it should be. Enter the total and the number of people and this tool gives the amount each, together with the rounding.

How to use it

Type the total and the headcount to get the per-person figure. Choosing a rounding unit (10, 100 or 500 yen) rounds up to a convenient amount to collect and shows the difference between what you collect and the actual bill — easy to hold up and explain at the table.

What to do with the remainder

Rounding each share up means collecting slightly more than the bill. Agreeing in advance whether that surplus goes to the organiser, carries over to next time, or is simply left behind avoids awkwardness. Rounding down does the opposite and leaves someone covering the shortfall, so rounding up is the safer default when collecting.

Uneven splits

An equal split is the norm, but sometimes seniority or how much people drank justifies a difference. The practical method is to set a base amount for the majority and allocate the remainder among those paying more. For ten people and a 50,000 yen bill where two seniors pay extra: eight at 4,000 (32,000), leaving 18,000 for two at 9,000 each. For proportional splits, the percentage calculator helps.

The organiser's share

Booking, fronting the money and chasing everyone up is real work. Letting the organiser go free or half price is a common courtesy; simply re-divide among the remaining headcount. Saying so before the event removes the need to explain it on the night.

Practical ways to avoid friction

Less cash means less friction. Transfer apps and bank payments settle to the exact yen, so rounding stops mattering at all. Beyond that, three habits prevent almost every dispute: share the per-person figure before paying, photograph the receipt, and recalculate as soon as anyone orders more. If you want to check what you drank, see the alcohol calculator.