Tip Calculator

Overview

The tip is `amount` multiplied by `percentage` / 100, and the total is the bill plus the tip. `percentage` accepts 0 to 100 and defaults to 15; a 0 is honoured rather than replaced by the default. `people` defaults to 1, and the bill, tip and total are each divided by it to give the `per_person` object.

Every money figure is rounded to two decimal places independently, after the division. Because the per-person values are rounded from unrounded totals, multiplying `per_person.total_amount` back by `split_between` can differ from `total_amount` by a cent or so; if you collect money from each person, decide in your own code who covers the remainder.

`currency` is a display setting only and no exchange conversion takes place. It is echoed back as sent, and it chooses the symbol used in `formatted`: USD, EUR, GBP, JPY, CNY, INR, CAD, AUD and MXN have built-in symbols (CAD shows C$, AUD A$, MXN MX$), and any other code is printed as the code followed by a space. The match is case-sensitive, and all currencies are formatted with two decimals, including JPY.

`common_tip_amounts` repeats the calculation for 10, 15, 18, 20 and 25 percent, each with `tip_amount`, `total` and `per_person`, regardless of the percentage you asked for. `formatted` and `common_tip_amounts` are null on the Free plan; all other fields are returned on every plan.

Live Test Tip Calculator API →

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

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curl "https://api.apiverve.com/v1/tipcalculator?amount=100&percentage=18&people=4&currency=USD" \
  -H "x-api-key: your_api_key_here"

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const res = await fetch('https://api.apiverve.com/v1/tipcalculator?amount=100&percentage=18&people=4&currency=USD', {
  headers: { 'x-api-key': 'your_api_key_here' },
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

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import requests

res = requests.get(
    "https://api.apiverve.com/v1/tipcalculator?amount=100&percentage=18&people=4&currency=USD",
    headers={"x-api-key": "your_api_key_here"},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

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package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/tipcalculator?amount=100&percentage=18&people=4&currency=USD", nil)
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

Parameters

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

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{
  "status": "ok",
  "error": null,
  "data": {
    "bill_amount": 100,
    "tip_percentage": 18,
    "tip_amount": 18,
    "total_amount": 118,
    "currency": "USD",
    "split_between": 4,
    "per_person": {
      "bill_amount": 25,
      "tip_amount": 4.5,
      "total_amount": 29.5
    },
    "common_tip_amounts": [
      {
        "percentage": 10,
        "tip_amount": 10,
        "total": 110,
        "per_person": 27.5
      },
      {
        "percentage": 15,
        "tip_amount": 15,
        "total": 115,
        "per_person": 28.75
      },
      {
        "percentage": 20,
        "tip_amount": 20,
        "total": 120,
        "per_person": 30
      }
    ],
    "formatted": {
      "bill_amount": "$100.00",
      "tip_amount": "$18.00",
      "total_amount": "$118.00",
      "per_person_total": "$29.50"
    }
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

Supported Currencies

170+ world currencies supported including fiat currencies, cryptocurrencies, and precious metals.

Use cases

Dining Apps

Integrate tip calculation features into restaurant and food delivery applications

Expense Tracking

Calculate and track tip expenses for budgeting and expense reporting

Bill Splitting

Split restaurant bills fairly among groups with automatic tip calculation

Financial Tools

Provide tip guidance and calculation in personal finance and budgeting apps

Other ways to use Tip Calculator

Set up Tip Calculator on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Related

More in Math/Calculations: