Split expenses calculator: who owes whom?

Which entry mode should you use?

• By person: everyone shares every expense equally. Add up the shared purchases each person paid for. Enter 0 for someone who paid nothing.
• By expense: different people shared different purchases. Enter the amount, who paid and who took part. For a taxi used by two friends in a group of four, select only those two.

The currency selector changes the display; it does not convert amounts. Keep one currency throughout a calculation. For unequal incomes, use the income-based bill split calculator. For different food orders, use the restaurant bill calculator.

Three friends paid $180, $90 and $30

Camille paid $180, Alex paid $90 and Lou paid $30. Everyone shared every purchase. The $300 total gives each person a $100 share.

• Camille paid $80 more than her share.
• Alex needs to pay $10 more.
• Lou needs to pay $70 more.

Alex pays Camille $10, and Lou pays Camille $70. After these two repayments, each friend has covered $100 of the weekend. Repayments are not new purchases, so the expense total stays at $300.

What if someone did not share an expense?

Camille pays $90 for groceries for all three friends. Alex also pays $40 for a taxi shared only with Lou. Choose “By expense” and uncheck Camille for the taxi. Their shares are now $30 for Camille, $50 for Alex and $50 for Lou.

Camille receives $60: $10 from Alex and $50 from Lou. Someone can pay for an expense without sharing its cost. Who paid and who participated are separate choices.

Why does one person pay an extra cent?

$100 cannot be divided into three identical amounts in cents. The calculator assigns $33.34, $33.33 and $33.33 in list order, preserving the $100 total. In the detailed mode, rounding happens separately for each expense.

What if someone has already paid a friend back?

This calculator starts from purchases, before repayments between friends. Do not put a repayment in the “Paid” field. If Alex has already sent Camille $5 in the $300 example, Alex has $5 left to pay and Lou still owes $70.

For several repayments or ongoing expenses, keep a history in Spliz. Our guide to splitting expenses with friends explains balances and partial repayments. This page does not send money or import its result into the app.

Other costs in the same group

• Split gas money and tolls for a shared drive.
• Split a vacation rental by nights stayed.
• Plan your trip budget in Excel or Google Sheets.

The people and amounts are fictional examples. Method: add the purchases, allocate each share, then offset the balances.