Bulk Density Calculator
Calculate soil bulk density from dry soil weight and sample volume. Bulk density helps evaluate compaction, root growth potential, and infiltration.
Inputs
How It Works
Bulk Density = Dry Soil Weight ÷ Sample Volume
Reported in g/cm³. Higher values generally mean more compaction and less pore space.
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FAQ
What is a normal bulk density?
Many agricultural soils range from about 1.1 to 1.6 g/cm³ depending on texture and organic matter.
Does soil texture affect bulk density?
Yes. Sandy soils often have higher bulk density than clay soils. Higher organic matter can lower bulk density.
How do I collect a bulk density sample?
Use a soil core of known volume, dry the sample completely, then weigh it. Divide dry weight by volume.
About Bulk Density
Soil bulk density is the mass of dry soil per unit volume. It’s commonly used to evaluate soil compaction and pore space. High bulk density can restrict root growth, reduce water infiltration, and limit oxygen availability to plants.
Bulk density varies by soil texture and organic matter. Tracking bulk density over time helps you measure changes in soil structure from traffic, tillage, cover crops, and soil health practices.