Contact us
We read every message — and reply as soon as we can.
Found an error in a calculator, missing a tool, or want to share feedback? Send us an email. You do not need an account to use Calctivo.
Emailhello@calctivo.com
Response time
We usually reply within a few business days. During busy periods it may take a little longer, but we aim to respond to everyone.
What we can help with
- Calculation bugs, broken links, or pages that do not load correctly.
- Ideas for new calculators or improvements to existing ones.
- Questions about privacy, cookies, or terms of use.
For privacy questions, see also our privacy policy.