Contact

The fastest way to reach us is email: hello@homeprojectcalcs.com

Reporting a calculator error

If a result looks wrong, include three things: the calculator’s URL, the exact inputs you entered, and the result you expected. Formula and constant errors get fixed with priority — usually within days. If you can point to a source for the correct constant (a bag label, a manufacturer’s coverage sheet), even better.

Suggesting a calculator

Tell us the question you were trying to answer (“how many bags of X for Y”) rather than just a tool name — the question shapes the inputs. New tools are added regularly, roughly in order of how often they’re requested.

We read everything. We can’t promise project advice, but bug reports never go unanswered.