Indoor Herb Garden Calculator
Plan a kitchen herb garden with container counts, supplemental lighting, and watering schedules.
Inputs
Results
Containers Needed
5
Est. Monthly Cost
$3.39
How to Use This Calculator
- Enter the number of herb varieties you want to grow (basil, parsley, cilantro, mint, thyme, etc.).
- Enter the daily hours of direct sunlight your window receives and whether you plan to use a supplemental grow light.
- Enter the container diameter in inches — most herbs thrive in 6–8 inch pots.
- Review Containers Needed and Supplemental Light Wattage to plan your setup.
- Note Water Every (days) and Est. Monthly Cost to establish a care routine and budget.
How the result changes with Herb Varieties
| Herb Varieties | Containers Needed | Est. Monthly Cost |
|---|---|---|
| 2.9 | 3 | $3.23 |
| 7.65 | 8 | $3.62 |
| 13 | 13 | $4.00 |
| 18 | 18 | $4.39 |
What each input means
- Herb Varieties
- Number of different herbs (basil, parsley, cilantro, etc.).
- Window Light Hours
- Hours of direct sunlight your window receives daily.
- Supplement Light
- Whether you will use a grow light to supplement natural light.
- Container Diameter
- Pot diameter in inches — most herbs do well in 6-8" pots.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersHerb Varieties = 5, Window Light Hours = 4, Supplement Light = 1, Container Diameter = 6 = 4 input(s) provided
- Calculate Containers NeededContainers Needed5 = 5
- Calculate Supplemental Light WattageSupplemental Light Wattage25 = 25
- Calculate Water EveryWater Every3 = 3
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.
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