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The fastest way to report a wrong result

Press the share button under the result and paste that link into your message. The link reopens exactly your case, with every input you typed, so the calculation can be repeated without guessing what was entered. Add the number you expected and where it comes from — a seed tag, a bin manufacturer’s sheet, an extension publication.

What we can and cannot answer

• Yes: errors in a formula, a unit, a translation or a page; ideas for calculators growers need; sources we should cite.
• No: individual agronomic, legal or tax advice. For a nutrient plan, talk to a certified crop adviser or your state extension office; for tax, to an accountant.

Messages are read by the people who maintain the calculators. We do not sell or share the address you write from, and there is no newsletter to be added to.