Warikan (\u5272\u308A\u52D8\u5B9A) means splitting the bill equally. Enter the total and number of people. Choose rounding: round up (organizer keeps change), round down (organizer covers the gap), or standard rounding.
How is the remainder handled?
In Japan, rounding up is most common \u2014 everyone pays slightly more and the organizer returns the extra. This tool shows the remainder so you know exactly how much is over or under.
What is organizer mode?
Organizer mode lets you enter each person\u2019s name and how much they already paid. It automatically calculates who owes whom, minimizing the number of transfers.
Why is this better than a bill-splitting app?
No installation, no login, no personal data. Works in your browser and lets you share results via LINE with one tap.
Can I share the result via LINE?
Yes! After calculating, tap \u201CShare via LINE\u201D. A pre-formatted message is sent to your LINE chat with the total, per-person amount, and a link to this tool.
How to Use the Warikan Calculator
Warikan is the Japanese custom of splitting a bill equally among all diners. This tool makes it instant: enter the total, the number of people, and choose how to handle the remainder. Results can be shared directly via LINE, Japan\u2019s most popular messaging app.
Organizer Mode: Settle Complex Bills
When different people paid different amounts (e.g., one person covered appetizers, another paid for drinks), organizer mode calculates the minimum transfers needed so everyone pays their fair share.