Calculateur de Split Bill
Split a bill, tax, and tip across multiple people.
Formula and method
This calculator computes Total, Per person directly in your browser without sending data to an external server.
Mathematical formula
- Total:
subtotal × (1+tax ÷ 100) × (1+tip ÷ 100) - Per person:
subtotal × (1+tax ÷ 100) × (1+tip ÷ 100) ÷ people
Variables and parameters
- Subtotal (subtotal): default value 84 $.
- Tax (tax): default value 8.5 %.
- Tip (tip): default value 20 %.
- People (people): default value 4.
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 Split Bill Calculator use?
Split Bill Calculator evaluates outputs such as <strong>Total, Per person</strong> based on inputs including Subtotal, Tax, Tip, People. Check the Mathematical Method section for the explicit formula.
What happens if I enter invalid or zero values into Split Bill 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 Split Bill 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 Split Bill Calculator free to use?
Yes. Split Bill Calculator is completely free, has no usage limit, and does not require an account, email, or API key.
Does Split Bill Calculator store or upload my data?
No. Split Bill Calculator calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.
How accurate is Split Bill Calculator?
Split Bill 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 Split Bill Calculator on my own website?
Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of Split Bill Calculator to your own blog post or page.