Is this really free to use?

Yes, 100% free. No sign-up, no hidden fees, and no ads interrupting your experience. Just open and start calculating.

Do I need an account?

No account needed. The calculator works instantly in your browser with no registration required.

Absolutely. The calculator is fully responsive and works perfectly on phones, tablets, and desktops.

The calculator uses precise arithmetic and offers rounding options (to nearest cent, 5 cents, or 10 cents) so everyone pays fairly.

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Use the "Copy Results" button after calculating to instantly share the breakdown with everyone in your group.