Potting Soil Calculator
Enter your container shape and size to see how much potting mix to buy and how heavy it will be once watered.
Result
- Potting mix needed
- 18.5 L
- Dry quarts
- 16.8
- Cubic feet
- 0.65
- Wet weight (approx.)
- 13-17 kg
Wet potting mix weighs roughly 0.7-0.9 kg per litre. Check your balcony's load limits before adding large containers.
How this calculator works
Round volume = pi x radius squared x depth. Rectangular volume = length x width x depth. Cubic inches are converted to litres (1 L = 61.02 cu in), dry quarts and cubic feet, which is how bagged soil is sold.
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Free to use on your blog, shop, forum or class page. Paste the code into any HTML block. Please keep the credit link.