Contact AmountHub
Found a calculation that looks wrong, a confusing explanation, or a useful calculator we should consider? Feedback is welcome.
Report a calculator problem
For the fastest review, include the calculator name, the values and units you entered, the result shown, and what you expected instead. That makes it much easier to reproduce a possible formula, conversion or rounding issue.
Suggest an improvement
Suggestions can be about the calculator itself, missing units, clearer explanations, useful examples, accessibility or navigation. AmountHub focuses on practical quantity and planning tools, especially construction, landscaping and home-improvement calculations.
You can reach AmountHub at privacy@amounthub.com. This address currently handles both privacy enquiries and general site feedback.
Corrections
When a genuine calculation or factual error is identified, the goal is to correct the page rather than hide the limitation. General planning assumptions can still differ from a supplier's product data, so product-specific specifications should always be preferred when they are available.
Before relying on a result
AmountHub provides estimates for planning and purchasing. For structural work, regulated construction, unusual site conditions or any project where an error could create a safety risk, check the result against the relevant professional, supplier or manufacturer guidance.
For more information about how formulas and assumptions are handled, read our calculator methodology.