🍽️Tip Calculator
Calculate the tip for any bill, the grand total, and how much each person pays when splitting. Defaults to a 15% tip.
Worked examples
64.50 with 15% tip
GET /api/v1/calculators/tip-calculator?bill=64.5&tipPercent=15&people=1
Result: 74.18
120 with 20% tip, 4 people
GET /api/v1/calculators/tip-calculator?bill=120&tipPercent=20&people=4
Result: 144
35 with 10% tip
GET /api/v1/calculators/tip-calculator?bill=35&tipPercent=10&people=1
Result: 38.5
Machine API (x402)
$0.001 / callThis tool is also a JSON API for AI agents. Requests without payment receive 402 Payment Required plus instructions; agents pay USDC on Base via the x402 protocol — no accounts, no API keys.
GET /api/v1/calculators/tip-calculator?bill=64.5&tipPercent=15&people=1 HTTP/1.1
Host: agenttools-hub.vercel.app
→ 402 (payment required, instructions in headers)
→ 200 (after X-PAYMENT header; JSON body below)
{
"tool": "calculators/tip-calculator",
"input": {"bill":64.5,"tipPercent":15,"people":1},
"result": { "value": 74.175, "answer": "74.18" }
}Agent docs: /llms.txt · OpenAPI spec · integration guide
About this tool
Work out the tip on any bill in one step: choose a percentage (15% preloaded), see the tip amount and grand total, and split the total evenly across any number of people.
tip = bill × tip% ÷ 100 · total = bill + tip · per person = total ÷ people
Frequently asked questions
How much should I tip?
Customs vary by country. In the US, 15–20% at restaurants is standard; in much of Europe service is included and smaller tips are normal. This calculator works for any percentage.
Should I tip on the pre-tax or post-tax amount?
Etiquette guides usually suggest tipping on the pre-tax amount, but many people simply tip on the bill total for convenience.