Bulk Modulus Calculator
Compute bulk modulus K = −V·Δp/ΔV and compressibility.
Input Data
Initial Volume M3
m³
Pressure Change Pa
Pa
Bulk Modulus Pa
Pa
Results
Volume change.
-0.0045454545m³
ΔV/V.
-0.0045454545
β = 1/K.
0.00000000051/Pa
Resulting volume.
0.99545455m³
At a glance:K = −V·Δp/ΔV; compressibility β = 1/K. Complements youngs-modulus and shear-modulus.
Formula
K = −V·Δp/ΔV.
$$K = -V\frac{\Delta P}{\Delta V} = -\frac{\Delta P}{\Delta V/V}, \quad \Delta V = -\frac{V\Delta P}{K}, \quad \beta = \frac{1}{K}, \quad c = \sqrt{\frac{K}{\rho}}$$How to Use
- Enter initial volume, pressure change and ΔV.
- The tool returns K and compressibility.
Case Studies
V=1, Δp=1e6, ΔV=−5e-5
K = 2e10 Pa.
FAQ
Negative sign?
Volume decreases under pressure, so −VΔp/ΔV is positive K.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.