Contact
Spotted an error, have a suggestion, or just want to say hello — here's how to reach me.
Get in touch
The fastest way to reach me is email:
This is a small, independently run project rather than a company with a support team, so replies won't always be instant — but every message gets read.
What's especially useful to hear about
Incorrect conversion factors. Every number on this site is checked before it ships, but if something looks wrong, say which page and which units — that's the fastest way to get it looked at and fixed.
Missing units or categories. If there's a unit or a whole category you expected to find and didn't, that's genuinely useful to know — it directly shapes what gets built next.
Anything broken. A page that won't load, a converter giving no result, a link that goes nowhere — details on what you were doing when it happened help track it down.