Tip & Bill Split Calculator

Compute pre-tax tip, tax, grand total, and per-person split for any group size.

Total Per Person (4 People)
$37.88
Grand Total: $151.50 (includes $21.60 tip & $9.90 tax)
Total Tip (18% pre-tax) $21.60
Sales Tax (8.25%) $9.90
Total Bill with Tip & Tax $151.50
Each Person Pays $37.88
Inputs
USD ($)
Food and beverage subtotal before tax.
%
Standard restaurant gratuity is 15%–20%.
%
Local sales or hospitality tax percentage.
people
Number of diners sharing the check.
Results & Graph
Total Per Person (4 People)
$37.88
Grand Total: $151.50 (includes $21.60 tip & $9.90 tax)
Total Tip (18% pre-tax)
$21.60
$5.40/person
Sales Tax (8.25%)
$9.90
Total Bill with Tip & Tax
$151.50
Each Person Pays
$37.88

Bill Composition ($)

Pre-Tax Subtotal vs. Tax vs. Gratuity
Graph 1 • Pre-Tax Subtotal, Sales Tax & Gratuity Tip Stack Calculated on pre-tax subtotal
Pre-Tax Bill Subtotal: 120 USDTip (18%): 21.6 USDTax (8.25%): 9.9 USD Pre-Tax Bill Subtotal 120 USD Tip (18%) 21.6 USD Tax (8.25%) 9.9 USD
Graph 2 • Proportional Check Split (Food + Tax + Tip) Percentage of total restaurant bill
GRAND TOTAL $151.50 Pre-Tax Bill Subtotal 120 (79.2%) Tip (18%) 21.6 (14.3%) Tax (8.25%) 9.9 (6.5%)
Graph 3 • Per-Person Total ($ for 4 Diners) Across 10% to 25% Tip Tiers Compare per-diner cost across gratuity percentages
0 21.6 43.2 10% Tip: 35.48 35.5 10% Tip 15% Tip: 36.97 37.0 15% Tip 18% Tip: 37.88 37.9 18% Tip 20% Tip: 38.48 38.5 20% Tip 22% Tip: 39.08 39.1 22% Tip 25% Tip: 39.98 40.0 25% Tip
Summary: Total bill is $151.50, or $37.88 per person across 4 people.
Summary: On a $120.00 pre-tax bill with 8.25% tax ($9.90) and a 18% pre-tax tip ($21.60), the grand total is $151.50. Split evenly among 4 people, each person pays $37.88.

Formula & Mathematical Methodology: Pre-Tax Tip & Group Split Equations

Total per Person = Subtotal × (1 + Tip%100 + Tax%100)People
Tip = Subtotal × (Tip% / 100); Tax = Subtotal × (Tax% / 100); PerPerson = (Subtotal + Tax + Tip) / People
  • Subtotal: Pre-tax food and drink total
  • People: Number of diners splitting the bill

Rounding: Rounded to 2 decimal places.

Worked Example: $120 Pre-Tax Bill with 18% Tip and 8.25% Tax Split 4 Ways

Four friends split a $120 pre-tax dinner bill with 8.25% sales tax and an 18% tip.

  1. Tip (on $120 pre-tax) = $120 × 0.18 = $21.60 ($5.40/person).
  2. Sales Tax = $120 × 0.0825 = $9.90.
  3. Grand Total = $120.00 + $21.60 + $9.90 = $151.50 → $37.88 per person.
Result: Grand total is $151.50 ($37.88 per person, including $5.40 tip each).

Frequently Asked Questions

Should restaurant tips be calculated before or after sales tax?

Etiquette standards calculate gratuity on the pre-tax food and beverage subtotal, though some POS terminals default to post-tax suggested buttons.

Everyday Life • Dining & Group Expenses Guide

How to Use the Tip & Bill Split Calculator: Practical Guide & Visual Analysis

Calculate restaurant tips on the pre-tax subtotal (so you never accidentally tip on sales tax) and divide the total evenly across your table. Whether you are researching tip calculator, split bill calculator, restaurant gratuity calculator, how much to tip, this interactive tool helps you calculate pre-tax tip amount, sales tax, grand total, and exact per-person share when splitting a restaurant bill.

Interpreting the 3 Custom Visual Graphs & Key Outputs

As you adjust Pre-Tax Bill Subtotal, Tip Percentage (on Pre-Tax Subtotal), Sales Tax Rate, Number of People Splitting, the calculator immediately computes Total Per Person ($), Total Tip Amount ($), Sales Tax Amount ($), Grand Total Bill ($) and updates all three domain-specific SVG charts in real time. Instead of relying on a single static figure, you can inspect the primary domain diagram, component breakdown, and multi-point trajectory curve to see how changing your inputs shifts the final result. Use the Compare (up to 3 scenarios) button to evaluate side-by-side variations before making a decision.

Real-World Benchmark & Planning Tips (Global)

In our benchmark scenario ($120 Pre-Tax Bill with 18% Tip and 8.25% Tax Split 4 Ways), Grand total is $151.50 ($37.88 per person, including $5.40 tip each). Keep in mind that calculates tip on the pre-tax subtotal rather than the post-tax total. For related calculations in Everyday Life, explore Percentage Calculator, GST Calculator (India), Cooking Conversions & Recipe Scaling Calculator.