Overview
A tip and bill-split calculator that computes the tip, the total, and each person's share from a bill amount, a tip percentage, and the number of diners. It includes quick preset percentages, an optional round-up of the total to whole currency, and a slider for group sizes from one to twenty.
How It Works
Type the bill amount, click a preset tip of 0 (no tip), 10, 15, 18, 20, or 25 percent, or fine-tune any percentage from 0 to 40 on the slider. Set how many people are splitting with the people slider. The output shows the amount per person, the tip itself, and the total bill. If you tick 'Round total up to whole currency', the total is rounded up to the next whole unit before it is divided among the group.
Step-by-Step Usage Guide
- Enter the bill amount exactly as printed.
- Choose a preset tip or set a custom percentage on the slider.
- Set the number of people sharing the bill.
- Optionally round the total up and read the per-person figure.
Technical Specifications & Standards
The math is straightforward: tip = bill × pct/100, total = bill + tip, and per person = total / people, with the people count floored at 1 so division never breaks. The rounding option applies Math.ceil to the grand total, not to each share — so a 4-way split of a rounded 132 yields 33.00 each, but an odd group size like three can produce a repeating decimal per person even after the total is rounded. That is a deliberate design: rounding each share up would silently collect more money than the restaurant is owed. The presets reflect common tipping norms in the United States, where 15 to 20 percent is the customary restaurant range, while the slider accommodates places where 5 to 10 percent is normal or where service is already included — in many European countries and Japan a service charge appears on the bill and no extra tip is expected, which is what the 0% preset is for. The tool does not distinguish tipping on tax versus pre-tax; it applies the percentage to whatever bill figure you type.
Targeted Use Cases
- Splitting a group dinner evenly, including the tip.
- Deciding between an 18% and a 20% tip on a large bill.
- Rounding a taxi or delivery total up to a clean number to pay in cash.
- Applying a 0% tip where service charge is already included on the bill.
Notes & Gotchas
- Check the bill for an included service charge before adding a tip percentage.
- Decide whether to tip on the pre-tax amount and enter that figure if you prefer.
- Use the round-up option for cash payments; the per-person share can still be fractional.
- Keep group size honest — the slider computes even division, not itemised splitting.
Frequently Asked Questions
Does rounding apply per person or to the total?
To the total. The tool rounds the combined bill up to the next whole currency unit first, then divides by the number of people. Per-person amounts can still have decimals, which keeps the sum equal to the rounded total.
What tip percentages are typical?
The presets run 0, 10, 15, 18, 20, and 25 percent. In the United States, 15 to 20 percent is the customary restaurant range; in countries where a service charge is included, 0 is appropriate. The slider allows anything from 0 to 40.
Can it split unevenly, by what each person ordered?
No. It divides the total evenly by headcount. For itemised splitting, compute each person's subtotal and apply the tip percentage to the sum.
Does the tip apply to the amount before or after tax?
The tool applies the percentage to whatever bill figure you enter. If you prefer to tip on the pre-tax subtotal, enter that number as the bill; the arithmetic is the same either way.