Split Bill Calculator
Splitting a restaurant or group bill? Enter the total, add tax and tip, split it evenly or by shares, then press Calculate to see exactly what each person owes.
Written by TopicDrill Editorial Team·Updated June 2026
Who pays what
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How the split bill calculator works
The tool starts from the bill subtotal you type in. It adds tax and tip as percentages of that subtotal to build a grand total, and then divides the grand total across the group. Splitting after tip and tax matters: it guarantees nobody quietly skips their fair share of the gratuity or the sales tax.
Choose split evenly when everyone shared roughly the same, or split by shares when one person ordered the expensive steak and another just had a salad. The bar chart shows each person side by side so the math is easy to check before anyone pays.
A quick example
A $120 dinner for four with 8 percent tax and an 18 percent tip works out to a grand total of roughly $151.20. Split evenly, that is about $37.80 each. If one diner had double the food, set their share to two and the rest to one, and the tool charges that person near $50.40 while the others pay about $25.20.
Things to keep in mind
Some venues add an automatic service charge for large parties, so check the receipt before you add your own tip. For guidance on customary tipping in the United States, the Consumer Financial Protection Bureau offers neutral money basics. If you are dividing rent or shared household costs instead, try our rent split calculator.
Frequently asked questions
How does this split bill calculator handle tip and tax?
Enter the pre-tip subtotal as the bill, then a tax percent and a tip percent. The tool applies both to the bill, adds them to find the grand total, and only then divides that total across the group, so every person covers a fair slice of the tip and tax too.
Can I split a bill unevenly?
Yes. Choose the by shares method and give each person a weight. A weight of two means that person pays twice as much as someone with a weight of one. The calculator scales every share so the weighted amounts always add up to the grand total.
Why does rounding up collect a little extra?
When you round each person's share up to the next whole dollar, the small leftover cents add up. The tool reports that surplus so you know the group is paying slightly above the bill, which usually goes toward an extra bit of tip.
Is the tip calculated on the pre-tax or post-tax amount?
This calculator figures the tip from the bill subtotal you enter, which is the pre-tax convention many people prefer. If you would rather tip on the post-tax amount, simply add your tax into the bill figure before calculating.
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