Bill Split Calculator
Split a bill evenly across people, with an optional tip, and see exactly what each person owes.
Total $94.40 (tip $14.40) split 4 ways
Collect $24.00 from each person and you pool $96.00 — a $1.60 surplus over the $94.40 owed, which can round out the tip.
An $80 bill with an 18% tip split 4 ways is $80 × 1.18 = $94.40 total, so each person pays $94.40 ÷ 4 = $23.60. Because that divides evenly there is nothing to round; collect $24 each and you pool $96, a $1.60 surplus that tops up the tip.
What splitting a bill really means
Splitting a bill evenly is two small steps: work out the grand total, then divide it by the number of people. If you are leaving a tip, add it to the bill first so everyone chips in for it. The per-person share is simply that grand total shared out equally — one number that changes the moment you adjust the tip or the head count.
tip here is written as a decimal, e.g. 18% = 0.18 · grand total = bill × (1 + tip)
Worked example
An $80 dinner, an 18% tip, split between 4 people.
- 1 Turn the tip percent into a decimal. 18% ÷ 100 = 0.18.
- 2 Multiply the bill by 1 plus that decimal. $80 × 1.18 = $94.40 grand total.
- 3 Divide the total by the head count. $94.40 ÷ 4 = $23.60 each.
- 4 Round each share up so the payments cover the bill. $24 × 4 = $96 pooled — a $1.60 surplus.
Per-person share of an $80 bill (18% tip → $94.40 total)
Tip customs vary widely by country; in the U.S., 15–20% is typical for table service, while in many places service is included or only small change is expected. Enter your own tip to match local custom.
| People | Per person | Rounded up each | Surplus pooled |
|---|---|---|---|
| 2 | $47.20 | $48.00 | $1.60 |
| 3 | $31.47 | $32.00 | $1.60 |
| 4 | $23.60 | $24.00 | $1.60 |
| 5 | $18.88 | $19.00 | $0.60 |
| 6 | $15.73 | $16.00 | $1.60 |
Pre-tax vs. post-tax tipping, and covering the rounding
Strictly, a tip rewards service, so it is figured on the pre-tax subtotal. Many people tip on the post-tax total instead for simplicity — the gap is usually a dollar or two. This tool tips on whatever bill figure you enter, so type the pre-tax subtotal if you want the precise version, or the post-tax total if that is your habit.
An even split rarely lands on a round number. Because paying $23.47 each is awkward, it helps to round each share up to the next whole unit: the pooled amount then always covers the check, leaving a small surplus that can round out the tip. If people ordered very differently, split each person’s own items and add tip to each subtotal instead of dividing evenly.