Calculateur de Tip
Calculate tip amount, total, and split per person.
Formula and method
This calculator computes Tip amount, Total, Per person directly in your browser without sending data to an external server.
Mathematical formula
- Tip amount:
bill × tip ÷ 100 - Total:
bill × (1 + tip ÷ 100) - Per person:
bill × (1 + tip ÷ 100) ÷ people
Variables and parameters
- Bill (bill): default value 64.5 $.
- Tip (tip): default value 20 %.
- People (people): default value 2.
Some formulas are undefined for certain input combinations (such as division by zero or logarithms of non-positive numbers). In those cases the live tool displays an alert instead of NaN.
Embed this tool
Paste this snippet into your own site or blog post to embed a live, working copy of this tool. It links back to the full page on SpecWhale.
Frequently asked questions
What equation and variables does Tip Calculator use?
Tip Calculator evaluates outputs such as <strong>Tip amount, Total, Per person</strong> based on inputs including Bill, Tip, People. Check the Mathematical Method section for the explicit formula.
What happens if I enter invalid or zero values into Tip Calculator?
If an input combination is mathematically undefined (such as division by zero or negative square roots), SpecWhale alerts you gracefully rather than returning invalid NaN outputs.
Are my calculations in Tip Calculator saved or private?
All calculations are 100% private and run locally in your Web browser. Your numbers are never uploaded to any server, but can be saved locally to your device or exported as CSV/JSON.
Is Tip Calculator free to use?
Yes. Tip Calculator is completely free, has no usage limit, and does not require an account, email, or API key.
Does Tip Calculator store or upload my data?
No. Tip Calculator calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.
How accurate is Tip Calculator?
Tip Calculator uses a standard formula (see the Method section above for the exact expression). For high-stakes financial, medical, or legal decisions, confirm the result with a professional or an authoritative source before relying on it.
Can I embed Tip Calculator on my own website?
Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of Tip Calculator to your own blog post or page.