calculator-free.com is a small, independently run site. Email is the only
channel, and a real person reads it.
Email us at [email protected]
What we are glad to hear about
- A result that looks wrong. Tell us the calculator, the
numbers you entered and what you expected. Formula errors get priority over
everything else.
- A translation that reads badly. These pages are published in
45 languages and native speakers catch things we cannot.
- A calculator you wish existed.
- Privacy questions — see the
privacy policy first;
it covers cookies, advertising and how to opt out.
We usually reply within a few days. We do not accept guest posts, link
exchanges or paid placements, and those emails are not answered.