Contact Us

Questions, formula feedback, bug reports, or ideas for new calculators — we read every message.

✉️ Send Us an Email

The best way to reach us is by email. We typically respond within 1–3 business days.

📬 calcs.site@gmail.com

What Can We Help With?

🐛 Report a bug or error

🔢 Question about a formula

💡 Suggest a new calculator

🌱 General gardening question

📰 Press or media inquiry

🤝 Partnership or collaboration

Formula accuracy: If you believe one of our calculator formulas is incorrect, please include your source (e.g. a university extension publication) and we'll review and update it promptly. Accuracy is our top priority.

🏠 About This Site

GardenCalcs is an independent website providing free garden planning tools for home gardeners. We are not affiliated with any seed company, fertilizer brand, or gardening retailer.

For more information about who we are and how we build our tools, visit our About page. For information about data and cookies, see our Privacy Policy.