Free online tip calculator

How to use

1. Enter the bill amount.
2. Pick a tip percentage — use the quick buttons or type your own.
3. Set how many people are splitting the bill.
4. All four amounts update instantly: tip, total, per-person, and tip-per-person.

The formula

T = B × (p / 100)
S = B + T
S ÷ N
T ÷ N

• B — Bill amount ($)
• p — Tip (%)
• T — Tip amount
• S — Total bill
• N — Split between

Worked examples

Dinner bill of $87.50, 18% tip, split 3 ways

• Tip: $87.50 × 0.18 = $15.75
• Total: $87.50 + $15.75 = $103.25
• Per person: $103.25 / 3 = $34.42
• Tip per person: $15.75 / 3 = $5.25

Unequal split — two people, one ordered more

Suppose the bill is $60 with 20% tip and person A’s food was $40, person B’s was $20:

• Tip: 60 × 0.20 = $12
• A’s share: 40 + (40/60) × 12 = 40 + 8 = $48
• B’s share: 20 + (20/60) × 12 = 20 + 4 = $24

Each person tips proportionally to what they ordered.

Notes

• Standard US percentages — 15% is the floor for adequate sit-down service, 18–20% is the default, 22%+ for excellent service or expensive wine. Counter service and takeout are 10% or nothing.
• Pre-tax vs. post-tax — most etiquette guides tip on the pre-tax total. The difference is usually under a dollar; don’t lose sleep over it.
• Automatic gratuity — parties of 6–10 and up often trigger an auto-added 18–20% service charge. Read the bill before adding a second tip.
• Rounding up — many people round the per-person total to an even dollar. A $34.42 share becomes $35; the extra 58¢ is effectively a slightly higher tip.
• The calculator requires at least 1 person (zero or negative defaults to 1).