Companion Planting Calculator
Evaluate companion planting benefits for your crops including yield boost and pest reduction estimates.
Inputs
sq ft
hrs
Results
Companion Score (1-10)
10
Yield Boost30%
Pest Reduction25%
Spacing Adjustment-10%
Incompatible Crops2
How to Use This Calculator
- Enter your primary crop number (1=Tomato, 2=Pepper, 3=Bean, 4=Corn, 5=Squash, 6=Lettuce, 7=Carrot, 8=Onion).
- Enter your bed area in square feet and the average daily sunlight hours your garden receives.
- Enter your soil pH — most vegetables prefer 6.0–7.0; test with an inexpensive soil test kit.
- Review the Companion Score (1–10), Yield Boost %, and Pest Reduction % to understand the benefit of pairing companion plants.
- Note the Spacing Adjustment % to modify your usual plant spacing when interplanting companions.
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