Bill Split Calculation
Calculate bill split for multiple members and payments.
Input event name and click create button. Unique URL will be issued to mange the bill split.
Tips
- Just share the URL with your group members — everyone can check the settlement details in real time. No app installation required.
- The "Payer" is the person who actually paid the money; "Need to pay" are the people who should share the cost. For example, if one person covers a meal for three, the Payer is 1 person and Need to pay is 3 people.
- The settlement calculation uses an algorithm that minimizes the number of transfers. Even with 5 people, settlement can be completed in at most 4 transfers.
- Sheets are automatically deleted one month after the last update. Once settlement is complete, it's a good idea to note down the data for your records.
FAQ
Side Note — The Origin of "Warikan" and "Going Dutch"
The Japanese word "warikan" (割り勘) is said to derive from "warimae kanjō" (割前勘定), an Edo-period term meaning to divide expenses equally among participants. Over time it was shortened to the familiar "warikan" used in modern Japanese.
In English, splitting a bill is often called "going Dutch." The expression dates back to the 17th century, when Dutch people had a reputation for frugality — though interestingly, there is no equivalent native phrase in Dutch itself, making it a distinctly English-language idiom. In most of the world, people simply say "split the bill."
Bill-splitting culture has evolved rapidly in the digital age. Apps such as Venmo and Splitwise have become widespread overseas, while PayPay's money-transfer feature is gaining traction in Japan. Nevertheless, cash remains deeply embedded in Japanese culture, keeping demand high for tools that calculate exactly who owes whom.