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Bill Split Calculator

Split a check evenly, add a tip, and see what each person owes

Bill Details

Quick summary

Enter the bill, pick a tip percentage, and choose how many people are splitting — the calculator adds the tip (customarily on the pre-tax amount) and divides the total evenly. A $120 bill with 18% tip across 4 people is $35.40 each. Use the tax field if your total already includes tax you want folded into the split.

Reviewed by Simple Calculators TeamLast reviewed

How to use this calculator

  1. Enter the inputs requested by the calculator.
  2. Choose the units or options that match your situation and review the assumptions.
  3. Run or update the calculation to see the result.
  4. Review the result, breakdown, and formulas shown on the page.
  5. Check the inputs, units, dates, and limitations before saving or sharing the result.

Frequently asked questions

How do I split a bill with tip?

Add the tip to the bill, then divide by the number of people. For an even split, that's it. This calculator does the arithmetic and shows both the per-person total and each person's share of the tip.

Should I tip on the pre-tax or post-tax amount?

Etiquette says tip on the pre-tax subtotal, since tax isn't part of the service. Many people tip on the total for simplicity — it's a small difference. This tool calculates the tip on the bill amount you enter and adds any tax separately.

What's a standard tip in the US?

15–20% is typical for sit-down restaurant service, with 18–20% common for good service and larger parties (where a gratuity is sometimes added automatically). Quick-service and takeout tipping is more discretionary.

How do I handle uneven splits?

This calculator splits evenly. For uneven shares — someone had only a salad while others had steak — total each person's items separately, then apply the tip percentage to each subtotal proportionally.

Key terms

Gratuity
The tip added for service, customarily 15–20% of the pre-tax bill.
Per-Person Share
The grand total (bill + tax + tip) divided by the number of people.
Auto-Gratuity
A tip many restaurants add automatically for large parties, often 18%.

Methodology, sources & limitations

This page shows the formula, assumptions, and limitations used for this estimate. Rates, thresholds, and other time-sensitive inputs can change, so verify them against the relevant official source before relying on a result.

For our review approach and the primary sources we consult, see the methodology and source policy. If you spot an outdated figure or formula, please contact us with a correction.