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Professional Garden Calculators & Planning Tools
Science-based precision tools to maximize your garden's potential. Save time, water, and money with data-driven gardening decisions.
100% Free
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Science-Based
Mobile Friendly
Professional Gardening Calculators
Precision tools developed with horticultural science for accurate garden planning
Trusted by Gardeners Worldwide
Join thousands who've improved their gardens with our tools
10,000+
Active Gardeners
50,000+
Calculations Daily
2M Gallons
Water Saved
98%
Success Rate
Why Professional Gardeners Choose RGardening
Our commitment to accuracy and usability sets us apart
Scientific Accuracy
Formulas based on agricultural research and horticultural science from leading universities.
- USDA zone compatible
- Peer-reviewed methods
- Regular updates
Professional Grade
Tools used by landscape professionals, master gardeners, and agricultural consultants.
- Industry standards
- Commercial accuracy
- Expert approved
Data-Driven Results
Make informed decisions with precise calculations tailored to your specific conditions.
- Custom recommendations
- Regional adjustments
- Seasonal factors
What Gardeners Are Saying
Real results from real gardeners using our tools
"The watering calculator saved my vegetable garden during the drought. I'm using 40% less water with better results!"
"As a landscape professional, these calculators save me hours of manual calculations. Extremely accurate and reliable."
"The companion planting tool helped me triple my tomato yield. This is now my go-to resource for garden planning."
How Our Calculators Work
Simple, scientific, and accurate garden planning in 3 steps
1
Enter Your Data
Input your garden's specific conditions: size, location, plant types, and environmental factors.
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2
Get Calculations
Our algorithms process your data using scientific formulas and regional databases for precision.
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3
Apply Results
Receive detailed recommendations you can implement immediately for better garden outcomes.
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Read MoreFrequently Asked Questions
Everything you need to know about our garden calculators
Are your calculators really free?
Yes, all our calculators are 100% free to use with no hidden costs, registration requirements, or usage limits. We're supported by minimal, non-intrusive advertising.
How accurate are the calculations?
Our tools use formulas from agricultural research institutions and are regularly updated with the latest horticultural science. Accuracy typically exceeds 95% when proper data is entered.
Do I need to create an account?
No account is required. All tools work instantly without registration. You can optionally subscribe to our newsletter for tips and updates.
Can I use these for commercial gardens?
Absolutely! Our calculators are used by home gardeners, landscape professionals, and commercial growers. The principles apply to gardens of all sizes.
Do the tools work for all climate zones?
Yes, our calculators include adjustments for different USDA hardiness zones and climate conditions. Simply select your zone or region for customized results.
How often are the tools updated?
We update our calculators quarterly with new research findings, user feedback improvements, and seasonal adjustments to ensure maximum accuracy.
Transform Your Garden with Data-Driven Decisions
Stop guessing. Start growing. Use professional-grade calculators trusted by thousands.
45%
Average Water Savings
3x
Better Yields
73%
Less Plant Loss