Contact us

Get in touch

Spotted a calculation error? Missing a calculator you would find useful? At Jerusalen Tools we read every message — your feedback helps us improve this website.

What you can write to us about

• Reporting calculation errors or technical issues.
• Suggesting new calculators or improvements to existing ones.
• Privacy and data protection enquiries.
• Advertising or partnership proposals.

Response time

We usually reply within 2 to 5 business days. Some technical enquiries may take a little longer.

You will find the contact form just below, on this very page.