Tip Calculator
Add a tip to the pre-tax bill, include entered tax and service charges, and split the total exactly to cents.
Last updated: November 4, 2026
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Quick summary: Add a tip to the pre-tax bill, include entered tax and service charges, and split the total exactly to cents.
Read the complete guide
Updated reference sections in this guide are in English.
Keep the tip base explicit
Enter the bill before tax, a tip percentage, the tax amount and any existing service charge. The tip is applied only to the pre-tax bill in this model. Tax and service are amounts, not percentages. Enter the number of people who will share the total equally. The currency selection changes the label without converting the entered money.
Total first, then split into cents
Total = bill + tax amount + service charge + tip
Total cents = round(total × 100)
Base share in cents = floor(total cents ÷ people)
A bill often cannot be split into identical two-decimal payments. The calculator divides the rounded total into whole cents, then distributes the leftover cents one at a time. It tells you how many people pay the slightly larger share. This prevents a rounded per-person figure from silently adding up to more or less than the bill.
An exact three-person split
100 before tax, an 8 tax amount and a 15% tip
The tip is 100 × 15% = 15. With no extra service charge, the total is 123. Three people each pay 41.
A leftover-cent example
A total of 10.00 split three ways cannot be paid as three identical cent amounts. One person pays 3.34 and two pay 3.33, adding to exactly 10.00. Enter bill 10, tip 0, tax 0, service 0 and people 3 to reproduce it.
Check this scenario in the calculator:
- Bill before tax
- 100
- Tip on the pre-tax bill (%)
- 15
- Tax amount
- 8
- Existing service charge
- 0
- People splitting the bill
- 3
- Currency (display only)
- USD — US dollar
Check whether service is already included
An existing service charge is kept separate from the extra tip you choose. This form does not decide whether an additional tip is expected or whether a service charge is distributed to staff. If you choose no extra tip, enter 0. Adding an existing charge in the service field when it is already part of the bill would count it twice.
Rounding and allocation limits
Bill, tax and service amounts must have no more than two decimal places. The calculated tip may have more precision, but the final total is rounded to cents before allocation. This tool is designed for the supported currencies’ two-decimal display and does not apply cash-rounding rules. All people share the same total; item-by-item allocations, different tip choices and different tax treatment are not modeled. The number of people must be a positive whole number. The tip uses nearest-cent rounding, with an exact half cent rounded upward.
Bill-splitting questions
Does the tip apply to tax or service?
No. It applies only to the pre-tax bill field. Tax and service are added separately.
Why do some people pay one cent more?
Those cents are the remainder after dividing the total. The two share amounts add up exactly to the displayed bill.
Does the tool send a payment or collect card details?
No. It only calculates amounts and does not initiate payments or request payment credentials.