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Calcimator

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
  1. Enter your primary crop number (1=Tomato, 2=Pepper, 3=Bean, 4=Corn, 5=Squash, 6=Lettuce, 7=Carrot, 8=Onion).
  2. Enter your bed area in square feet and the average daily sunlight hours your garden receives.
  3. Enter your soil pH — most vegetables prefer 6.0–7.0; test with an inexpensive soil test kit.
  4. Review the Companion Score (1–10), Yield Boost %, and Pest Reduction % to understand the benefit of pairing companion plants.
  5. Note the Spacing Adjustment % to modify your usual plant spacing when interplanting companions.

How the result changes with Daily Sunlight Hours

Daily Sunlight HoursCompanion Score (1-10)
2.57
6.259
1110
1510

What each input means

Primary Crop
1=Tomato, 2=Pepper, 3=Bean, 4=Corn, 5=Squash, 6=Lettuce, 7=Carrot, 8=Onion.
Bed Area
Total area of the garden bed.
Daily Sunlight Hours
Average hours of direct sunlight the bed receives.
Soil pH
Current soil pH level. Most vegetables prefer 6.0-7.0.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Primary Crop = 1, Bed Area = 32, Daily Sunlight Hours = 8, Soil pH = 6.5 = 4 input(s) provided
  2. Calculate Companion Score
    Companion Score
    10 = 10
  3. Calculate Yield Boost
    Yield Boost
    30 = 30
  4. Calculate Pest Reduction
    Pest Reduction
    25 = 25

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.

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