How to use the gravimetric soil moisture calculator
Find the water content of a soil sample by weighing it before and after oven drying. Enter wet soil mass, oven-dry soil mass in the fields above; the gravimetric moisture content, water mass are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “soil moisture gravimetric”, “soil water content percent”, “oven dry soil moisture”, “calculate gravimetric soil moisture”, “find gravimetric moisture content”.
Formula
Variables
- wet — Wet soil mass (g)
- dry — Oven-dry soil mass (g)
Worked example
With wet soil mass = 25 g, oven-dry soil mass = 20 g, the calculator gives gravimetric moisture content ≈ 25 %; water mass ≈ 5 g.
Frequently asked questions
What is the gravimetric soil moisture calculator used for?
Find the water content of a soil sample by weighing it before and after oven drying. It helps with questions such as “soil moisture gravimetric”, “soil water content percent”, “oven dry soil moisture”.
What is the formula for the gravimetric soil moisture calculation?
Gravimetric moisture content (%) = (wet-dry) / dry × 100. Water mass (g) = wet-dry. Here wet is wet soil mass (g), dry is oven-dry soil mass (g).
What inputs do I need for the gravimetric soil moisture calculator?
You need wet soil mass in g, oven-dry soil mass in g. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the gravimetric soil moisture calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the gravimetric soil moisture result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.