Bill Splitting Calculator
Instantly calculate complex bill splits for trips or parties.
Easily find out who owes who and share the results.
Cultural Note
This tool is based on Japanese cultural, legal, or administrative standards. Calculations and terminology may not apply outside Japan.
Add Members (2-15)
Add Expenses
Step 3 Result
💰 Individual Balances
📤 Optimal Transfers
Overview
When traveling with a group or paying for multiple items separately at a party, it's often confusing to figure out exactly who needs to pay whom and how much.
This tool automatically calculates the most efficient "settlement route" to minimize the number of money transfers. Just input how much each person paid, and it will sort out the rest!
How to Use
Add members and input any expenses they paid on behalf of the group. You can specify exactly who each expense should be split between.
Click "Calculate Results" to instantly generate the minimal transfer plan. You can save this result as an image to share in group chats.
Glossary
- Bill Splitting
- Dividing the total cost of shared expenses equally or proportionally among participants.
- Proportional Splitting
- Allocating specific costs to individuals or subsets of the group rather than dividing everything equally.
- Settlement Route
- The calculated plan of exactly who should transfer money to whom in order to clear all debts.
FAQ
- Q. Can I change the currency?
- Yes, you can select your preferred currency from the dropdown menu in Step 1.
- Q. Does it support decimal amounts?
- Yes, for currencies like USD and EUR, you can input exact decimal amounts, and the tool will calculate the split down to the exact cent without inappropriate rounding.
- Q. How are the minimum transfers calculated?
- The tool uses a greedy algorithm to match the biggest debtors with the biggest creditors iteratively, eliminating redundant transactions across the group.
Use Cases
Dinner & Parties
Easily allocate drinks or specific dishes to subsets of people while splitting general costs among everyone.
Group Travel
Combine hotel bills paid by Alice with taxi fares paid by Bob into one seamless minimal transfer plan.
Roommate Expenses
Share rent, utility bills, and shared groceries seamlessly without maintaining complex running tabs.
Group Gifts & Events
Instantly determine who owes what when multiple people chipped in for a wedding gift or party supplies.
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