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.
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.