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Contact

Found a wrong result, a confusing explanation, or a calculator you'd like to see? Email is the fastest way to reach a human behind HowMuchTool.

Email us directly

hello@howmuchtool.com

What to include: For wrong results: the calculator name, the inputs you entered, and what you expected. That lets us reproduce and fix the math quickly.

Frequently asked questions

How fast will I get a reply?

Genuine messages are read by a human. Most get a reply within a few working days; reports of wrong results are prioritised.

Can I suggest a new calculator?

Yes — suggestions with the inputs you would enter and the answer you want are the most useful, and most likely to get built.