Split the total by headcount, ratio, or fixed amounts
Specify the burden differences (more, normal, less) and rounding unit, and verify the final collected amount.
Amount and participants
When to use ratios vs. fixed amounts
“More” is ratio 1.5, “Less” is 0.75. You can freely change ratios in 0.05 increments. If a person has a fixed fee, enter it, and the remaining amount is split among others by ratio.
Collection results
Enter the total payment and at least two participants, then press “Calculate Split.”
| Name | Ratio | Theoretical amount | Payment amount | Difference |
|---|
Calculation rules
| Settings | Calculation details | Best for |
|---|---|---|
| Equal | Set everyone’s ratio to 1 | Meals where everyone had the same dishes and service |
| Weighted split | Distribute the remaining amount by each person’s ratio | Meals with differences in rank, drinks, or attendance time |
| Fixed amount | Set fees first for students or late joiners | When only some people have a spending cap |
| Remainder handler | Adjust rounding difference with one designated person | To match the collected total exactly to the receipt |
Your input is not saved or transmitted.
Split a bill equally, by ratio, or with fixed amounts
Divide meals, trips, shared purchases, or household costs. Give everyone the same ratio, assign a larger or smaller share, or fix an amount for selected participants before distributing the remainder.
Choose a rounding unit from $0.01 to $1. The tool can assign the rounding difference to the organizer so the collection total exactly matches the bill, or leave the difference visible.
Explain weighted shares
Use ratios such as 1.5 to 1 instead of guessing separate amounts.
Combine fixed and weighted amounts
Set a participant to $20 and divide only the remaining balance.
Track the rounding adjustment
See the calculated amount, final amount, and difference for each person.
Private browser calculation
Names and amounts are not uploaded or saved by WiseChecker.
How to calculate weighted shares
- Enter the final bill totalUse the amount after discounts, tips, fees, and taxes as applicable.
- Add participantsUse names, initials, or roles that make sense to the group.
- Set ratiosUse 1 for a normal share, 1.5 for a larger share, or any agreed positive value.
- Add fixed amounts if neededFixed participants are excluded from the ratio calculation.
- Choose roundingUse cents for electronic payments or a larger practical unit for cash.
- Verify the totalConfirm the difference is $0.00 before sharing the result.
How the calculation works
Without fixed amounts, each theoretical share is total × person ratio ÷ sum of ratios. With fixed amounts, those amounts are subtracted first and only the remainder is distributed.
Each flexible share is rounded to the selected unit. If organizer adjustment is enabled, the rounding difference is applied only to participants without a fixed amount so the final total matches the bill.
Recommended settings by situation
| Situation | Ratios | Rounding | Check |
|---|---|---|---|
| Lunch | Everyone 1 | $0.01 or $0.05 | Use separate items if orders differ greatly. |
| Group dinner | Agreed larger and smaller shares | $0.10 or $0.50 | Agree before collecting. |
| Trip costs | Nights or usage as ratio | $0.01 | Keep personal expenses separate. |
| Shared purchase | Quantity as ratio | $0.01 | Include shipping and fees. |
Avoid disputes about rounding
Rounding up can create a surplus and rounding down can create a shortfall. Decide whether the organizer absorbs the difference or whether the group keeps a visible balance.
Ratios do not replace agreement. Explain the rule before collecting money, especially when roles, attendance time, or consumption are used to set different shares.
Notes for sharing the split result
Copied results include participant names. When sending to group chats, avoid unnecessary real names, roles, or burden reasons. CSV includes differences from theoretical amounts; treat it as a record for the settlement organizer and limit its distribution.
When using payment apps, confirm the recipient and deadline separately, not just the amount. This tool only calculates amounts; it does not send money, request payments, settle, or notify participants.
No data is sent from your device
Total payment, participant names, ratios, fixed amounts, rounding, and result table creation are all processed in your browser on this page. No calculation data is sent to WiseChecker servers or external APIs, and nothing is auto-saved in the browser.
If you save results as CSV, the file remains in your device’s download folder. On shared computers, check the save location and cloud sync settings, and delete unnecessary files appropriately.
Split bill calculator FAQ
How do I split equally?
Set every ratio to 1 and leave fixed amounts blank.
Can I fix one person at $20?
Enter 20.00 in that participant’s fixed amount. The remainder is divided by ratio.
Why does the collected total differ?
Individual amounts were rounded. Choose organizer adjustment to make the final total match.
Do I enter tax separately?
No. Enter the final amount that must actually be paid.
Are names and amounts saved?
No. They stay in this tab and disappear when the page is reloaded.