📖 Overview
Use this tool to set a consistent delivery tipping approach.
🧪 Example Scenarios
Use these default and higher-pressure example inputs to explore how sensitive this calculator is before using your real numbers.
| Input | Base Case | Higher Pressure Case |
|---|---|---|
| Bill Amount ($) | 120 | 138 |
| Tip Rate (%) | 18 | 21.6 |
⚙️ How It Works
This calculates gratuity from bill amount and tip percentage, then returns both tip and total bill.
The Formula
Tip = Bill × (Rate ÷ 100) | Total = Bill + Tip
💡In the US, 18–20% is standard for sit-down restaurants. 15% is acceptable for counter service; 25–30% for exceptional service.
Quick Reference
| Bill Amount | 15% | 18% | 20% | 25% |
|---|---|---|---|---|
| $20 | $3.00 | $3.60 | $4.00 | $5.00 |
| $50 | $7.50 | $9.00 | $10.00 | $12.50 |
| $80 | $12.00 | $14.40 | $16.00 | $20.00 |
| $120 | $18.00 | $21.60 | $24.00 | $30.00 |
| $200 | $30.00 | $36.00 | $40.00 | $50.00 |
When To Use This
- Use this tool when you need a fast decision during active planning or execution.
- Use this before committing money, time, or tradeoffs that are hard to reverse.
- Use this to compare options using the same assumptions across scenarios.
Edge Cases To Watch
- Results can be misleading if key inputs are missing, stale, or unrealistic.
- Very small or very large values may amplify rounding effects and interpretation risk.
- If assumptions change mid-decision, recalculate before acting.
Practical Tips
💡 Decide tip policy before ordering to avoid rushed choices.
💡 Use consistent tip rates for similar service contexts.
💡 Round totals when you want easier payment splits.
Frequently Asked Questions
❓ Can I use custom tip rates?
Yes, any percentage can be used.
❓ Does this include tax treatment differences?
No, this is a straightforward percentage model.