Contact
The fastest way to reach us is email:
What to include
- Calculator errors — tell us which calculator, the inputs you used, the result you got, and the result you expected. Corrections get priority.
- Tool suggestions — what question were you trying to answer? If a calculator would help others too, we'll consider building it.
- Partnerships & advertising — include your company, what you're proposing, and links.
We're a small operation, so replies can take a few days — but every message gets read.
Before you write…
If your result looks wrong, check the assumptions listed under each calculator first: most "errors" turn out to be a tariff, efficiency, or usage default that didn't match your situation. Every input on every tool can be adjusted.