Split Restaurant Bill Calculator
Split group dining checks fairly: calculate equal group splits or itemized diner shares with proportional tax and tip distribution.
Itemized Bill Split & Proration Formula
Diner Tax Share = Tax × (Diner Subtotal / Total Subtotal); Diner Tip Share = Tip × (Diner Subtotal / Total Subtotal); Total Due = Subtotal + Tax + Tip- Even Split Mode: Evenly divides total check, tax, and tip by the number of guests.
- Itemized Proration Mode: Allocates tax and tip proportionally based on each individual diner’s ordered food and beverage amount.
- Fair Alcohol Distribution: Prevents non-drinkers from subsidizing expensive cocktail tabs.
Step-by-Step Worked Example
Calculation Steps:
How to Use This Calculator
Assumptions & Limitations
- Shared appetizers are entered as split dollar amounts or added to individual subtotals.
- Rounding adjustments of +/- $0.01 are balanced to ensure exact payment match.
Frequently Asked Questions
How should you fairly split a restaurant bill when some people don’t drink alcohol?
Itemizing individual subtotals and prorating tax and tip proportionally is the fairest method. Alcohol frequently represents 30% to 50% of a dinner bill, so an even split unfairly penalizes non-drinkers.
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