Bill Splitter Calculator
Split a group bill fairly — subtotal, tip percentage, and headcount — into a clean per-person amount. For dinners, group trips, or shared party expenses.
Last updated: September 2026
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About this calculator
The math is straightforward: the total bill is the subtotal plus tip (subtotal × tip%), divided by the number of people. What this calculator saves you is the awkward table conversation — someone squinting at their phone while a plate of leftover fries goes cold.
Tipping conventions vary. In the United States, 15–20% on the pre-tax subtotal is the current norm at sit-down restaurants (18% is a common default); 10% is standard at counter service. In most of continental Europe, tipping is included and rounding up to the next euro is generous. In Japan, tipping is not expected and can actively confuse staff. Adjust the tip % field to match local custom.
Even splits are not always fair. If one person had a $60 steak and two others split a $20 salad, an even three-way split hurts the salad eaters. In that case, consider itemized splits: everyone pays for what they ordered plus their share of shared items and a proportional share of tip and tax. Apps like Splitwise or Tricount make itemized splitting easier for recurring groups; this calculator handles the common 'even split' case in one step.
Also be aware that on separate cards, servers sometimes need to split the bill on-screen, which some restaurants charge for or refuse. If you know you will split, ask the server up front rather than at the end.
How to use
Example — dinner for 4. The subtotal is $100, you're tipping 18%, splitting between 4 people. Total with tip = 100 × 1.18 = $118. Per person = 118 / 4 = $29.50. Everyone throws in $30 and you leave $2 as extra for the server. Example — birthday brunch for 8. The subtotal is $240, tipping 20%, splitting 8 ways. Total = 240 × 1.20 = $288. Per person = 288 / 8 = $36. Round up to $40 each and the birthday person eats free — use the percentage-calculator at /en/calculators/math/percentage-calculator/ to check the effective per-person rate.
Frequently asked questions
What if we don't want to split evenly?
This calculator does an even split. For itemized splits (each person pays for what they ordered, then a shared portion of tip and tax), you either need to do it by hand or use a dedicated app like Splitwise, Tricount, or the built-in bill-split feature in Venmo/Cash App. As a middle ground, some groups do a rough per-person split then adjust by ±$5 for the person who had the most expensive dish.
Should I tip on the pre-tax or post-tax subtotal?
In the US, tipping etiquette technically applies to the pre-tax subtotal, since sales tax varies by state (0% in Oregon and Delaware, 10%+ in some cities) and isn't part of what the server did. In practice, many people tip on the post-tax total and no one complains — the difference is usually a couple of dollars. This calculator asks for the subtotal (pre-tax), so enter that value; if you're looking at a check with tax already added, subtract the tax first.
What if I only want to include tip on my own portion?
That is a valid approach when the check has a mix of high and low orders. Divide your item total from your item total, add your share of shared items, then multiply by (1 + tip%) for your line. This calculator does the even case in one step; for detailed itemized splits, an app is better.
Why don't we tip in some countries?
In many countries (Japan, South Korea, most of continental Europe, Australia, New Zealand), a service charge is either included in the bill by law or the wage system does not depend on tips. Extra tipping is not expected and in Japan can be politely returned. Always check local custom — the tip % field can be set to 0 (Japan), 5–10% (Europe, rounding up), or 15–20% (US, Canada) depending on where you are.