15% Tip Calculator
Preset to 15% — the standard for average, casual-dining service in the US. Enter your bill to see the tip, total, and per-person amounts instantly.
Total
$0.00- Tip amount
- $0.00
When to leave a 15% tip
A 15% tip fits average or casual-dining service — think coffee shops, diners, quick-serve spots where the server brings food but the interaction is brief. Many US diners consider 15% the minimum for acceptable service. For anything above average, round up to 18% or 20%.
Quick 15% tip reference table
Common bill amounts with the 15% tip and the resulting total.
| Bill | Tip (15%) | Total |
|---|---|---|
| $20.00 | $3.00 | $23.00 |
| $30.00 | $4.50 | $34.50 |
| $50.00 | $7.50 | $57.50 |
| $75.00 | $11.25 | $86.25 |
| $100.00 | $15.00 | $115.00 |
| $150.00 | $22.50 | $172.50 |
| $200.00 | $30.00 | $230.00 |
How to calculate 15% in your head
The fastest mental trick: take 10% of the bill (move the decimal one place to the left), then add half of that again. For a $48 bill → $4.80 + $2.40 = $7.20. Close enough for cash — round up or down to a convenient coin.