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Have feedback, found a bug, or want to suggest a new calculator? You're in the right place.
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Response time
Usually within 2–3 business days
Common questions
Are your calculators free? Yes, every calculator on this site is 100% free to use, no sign-up required.
Do you store my financial information? No. All calculations run entirely in your browser. The numbers you enter never leave your device. Read more in our Privacy Policy.
Can I suggest a new calculator? Absolutely. Send us an email describing what you'd like to see, and we'll consider it for our next update.
I found a calculation error. Please tell us immediately — include the calculator name, your inputs, and what you expected the result to be. We take accuracy seriously.