Tip amount
$10.00
@ 20%
Budgeting
Tip Calculator & Bill Splitter
Calculate tips by percentage and split bills evenly or by custom shares. See per-person breakdown instantly.
Breakdown
Total with tip
$60.00
Per person total
$30.00
2 people
Per person breakdown
$25.00 + $5.00
Bill + Tip
Person-by-person breakdown
| Person | Bill share | Tip share | Total |
|---|---|---|---|
| Person 1 | $25.00 | $5.00 | $30.00 |
| Person 2 | $25.00 | $5.00 | $30.00 |
Total Distribution
How the bill and tip are distributed.
Bill
$50.00
Tip
$10.00
How to use it
- Enter the bill amount, tip percent, number of people, and whether the split is even or custom. Use custom shares when alcohol, appetizers, or entrees were not shared equally.
- Read tip amount, total amount, and each person's share. In the U.S., about 15% is a lower casual baseline, 18%-20% is common for full-service dining, and service charges should not be tipped twice unless you mean to.
- Rounding up is a convenience choice, not a budgeting principle, but it matters when several people are settling small transfers. Weighted splits avoid one diner subsidizing the table.
- Send each person's exact share immediately and note whether gratuity was already included. If group dining is frequent, keep a standard tip-and-split rule so the decision is fast next time.
- Re-run whenever service charge, party size, or split method changes. Track only the final per-person amount, because that is the number people actually need to pay.
AI Integrations
Contract, discovery endpoints, and developer notes for agent use.
Always available for agents
AI Integrations
Contract, discovery endpoints, and developer notes for agent use.
Tool contract JSON
https://aifinhub.io/contracts/tip-calculator.jsonStable input and output contract for this exact tool.
Human review
People can use the browser page to sense-check outputs and charts, but agents should still execute against the contract and discovery endpoints.
- /agent-tools.json - machine-readable tool index.
- /llms.txt - human-readable model discovery guide.
- /.well-known/webmcp.json - WebMCP capabilities manifest.
- /.well-known/ai-plugin.json - plugin-style discovery manifest.
{
"tool": "tip_calculator",
"bill_amount": 82,
"tip_percent": 20,
"number_of_people": 2,
"split_mode": "even",
"custom_shares": [],
"round_up": false
} Expand developer notes
Agent playbook
- Resolve Tip Calculator & Bill Splitter from /agent-tools.json and open its contract before execution.
- Validate inputs against the contract schema instead of scraping labels from the page UI.
- Open the browser page only when a person wants to review charts, assumptions, or related tools.
Agent FAQ
Should ChatGPT, Claude, or another agent click through the UI?
No. Start with /agent-tools.json, then follow the tool's contract URL. The page UI is for human review, not parameter discovery.
When do tools show Quick and Advanced?
Every tool opens in Quick Start first. Advanced Controls keeps the same scenario, reveals more assumptions or diagnostics, and every tool keeps AI integrations inline below the instructions.
When should an agent still open the browser page?
Open it when a human wants to sense-check the output, review the chart, or keep exploring related tools after the calculation finishes.
Questions people usually ask
How do I use custom share mode?
Enter weights for each person (e.g., 2, 1, 1 for a 2:1:1 split). The tool normalizes them proportionally and splits the bill and tip accordingly.
What does 'round up' do?
When enabled, each person's total is rounded up to the nearest dollar. Useful for cash payments or simplifying Venmo.
How is the remainder handled in even splits?
When the total doesn't divide evenly, the remainder cents are added to the first person's share.
Can I save and share my split?
Yes. Copy the URL from your browser address bar to share your calculation with the group.
What if someone ordered significantly more?
Use custom share mode and enter different weights (e.g., 1 for basic meals, 2 for expensive entrees).
Is this professional advice?
No. Outputs are planning estimates only — not financial, tax, or investment advice.
Related Resources
Learn the decision before you act
Every link here is tied directly to Tip Calculator & Bill Splitter. Use the explanation, formula, examples, and benchmarks to pressure-test the calculator output from first principles.
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