Split the Bill Calculator
Split a bill evenly or by what each person ordered, with tax and tip shared proportionally and the parts always adding up.
Result
Enter total bill to see the result.
https://calcgallery.com/shopping/split-the-bill-calculator/
Results are arithmetic from the amounts and rates you enter. The site publishes no tax rate, threshold or tipping convention, and rates vary by jurisdiction and change. Check the rate on your receipt, invoice or tax authority guidance, and confirm anything that matters with a qualified adviser. Read the full disclaimer
How to use the Split the Bill Calculator
- Choose an even split or one by what each person ordered.
- For an even split, enter the total and the number of people.
- For an itemised split, add a row per person with what they ordered, plus tax and tip.
- Check the shares — they always add up to the total exactly.
How it is calculated
An even split divides the total and hands out the remaining cents:
shares = apportion(total, equal weights)An itemised split weights each share by what that person ordered, and shares the tax and tip the same way:
subtotal = sum of what everyone orderedtip = subtotal × tip ratetotal = subtotal + tax + tipshares = apportion(total, each person's order)The shares always add up
This is the part worth getting right. 100.00 between three people is 33.333 each. Rounding each share gives 33.33, and three of those is 99.99 — the table is a cent short and nobody notices until the card is declined or someone recounts.
Largest-remainder apportionment fixes it: every share takes its whole cents, and the leftover cents go one at a time to the largest fractional remainders. The result is 33.34, 33.33, 33.33, which is exactly 100.00. The page says who took the extra cent.
| Bill | People | Shares |
|---|---|---|
| 100.00 | 3 | 33.34 / 33.33 / 33.33 |
| 100.00 | 4 | 25.00 each |
| 10.00 | 3 | 3.34 / 3.33 / 3.33 |
Why tax and tip follow the food
On an itemised bill, splitting the food by item and the tax evenly is the common half-measure, and it is wrong. Tax is charged on the whole bill, and the person who ordered the 42.50 main generated more of it than the person who ordered the 28.00 one. Sharing it evenly quietly moves money from the small orders to the large ones.
This page apportions tax and tip in proportion to each person’s order, then apportions the resulting total so the parts still sum exactly.
Practical tips
Decide the tip before splitting. Changing it afterwards changes everyone’s share.
Shared dishes need splitting by hand before they go in, one amount per person.
An even split is often the better social answer even when it is not the fair arithmetic one. The page will do either.
Check the sum. It is shown for exactly that reason, and it will always match the total.
With your numbers
- The shares come to $100.00, which is the total exactly — Person 1 covers an extra cent so the shares add up to the total exactly.
- Each person owes 33.34 / 33.33 / 33.33
Quick reference
The shares always sum to the total exactly. Rounding each one separately is what leaves a cent on the table.
| Example | Each person owes |
|---|---|
| 100 three ways | 33.34 / 33.33 / 33.33 |
| 100 four ways | 25.00 / 25.00 / 25.00 / 25.00 |
| 10 three ways | 3.34 / 3.33 / 3.33 |
| 87.65 five ways | 17.53 / 17.53 / 17.53 / 17.53 / 17.53 |
| 250 seven ways | 35.72 / 35.72 / 35.72 / 35.71 / 35.71 / 35.71 / 35.71 |
| Itemised, three people | Alex: 35.30, Sam: 53.57, Jo: 44.12 |
| Itemised, no tip | Alex: 21.60, Sam: 32.40 |
| Itemised, four people | Alex: 35.55, Sam: 53.97, Jo: 44.44, Kit: 38.31 |
Common questions about the Split the Bill Calculator
- Why do some people pay a cent more?
- Because most totals do not divide evenly. 100.00 between three is 33.333 each, and cents cannot be split. If everyone paid 33.33 the table would be a cent short. The page gives the odd cents to the first shares and says who picked them up, so the payments sum to the bill exactly.
- Should tax and tip be split evenly on an itemised bill?
- Not if you are splitting the food itemised. Someone who ordered twice as much generated twice the tax, and by convention twice the tip. Splitting the food by item and then the tax evenly is a half-measure that undercharges the big orders. This page apportions tax and tip in proportion to what each person ordered.
- Is the tip taken before or after tax here?
- Before, on the pre-tax subtotal, which matches the default on the tip calculator so the two pages agree on the same bill. If you want to tip on the post-tax figure, work the tip out there and add it to the tax field instead of using the tip percentage here.
- What if someone shared a dish?
- Split it yourself and enter each person a share. The page takes one amount per person, so a shared starter is two half-amounts on two rows. It has no way to model a dish belonging to several people, and pretending otherwise would just move the guesswork somewhere less visible.
- Does the order of the rows matter?
- Only for who absorbs an odd cent. Ties go to the earlier row, so the same bill always produces the same answer rather than depending on how the list happened to be sorted. The totals are identical whatever the order.