Science
Young’s modulus from extension
Estimate elastic stiffness from a tensile load and measured extension.
Calculators / Science / Bulk modulus from compression
Bulk modulus from compression calculator
Estimate resistance to volume compression from pressure and volume changes.
On this page
Bulk modulus2,000,000,000Pa
Fractional volume decrease1.00e-3
Calculator controls
How to calculate
Estimate resistance to volume compression from pressure and volume changes.
Bulk modulus =
dp*V/dV PaFractional volume decrease =
dV/VWorked example
- Pressure increase (Pa): 2000000
- Original volume (m³): 1
- Volume decrease (m³): 0.001
- Bulk modulus: 2,000,000,000 Pa
- Fractional volume decrease: 1.00e-3
Assumptions and limits
This is an ideal educational model. Enter quantities in the stated SI units; it does not certify equipment safety or real operating limits. Enter a positive volume decrease smaller than the original volume. Small-strain linear compression is assumed.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Estimate resistance to volume compression from pressure and volume changes. The volume decrease is entered as a magnitude, so the reported bulk modulus is positive.
When this tool is useful
The volume decrease is entered as a magnitude, so the reported bulk modulus is positive.
Understanding your inputs
| Input | Example |
|---|---|
Pressure increase (Pa) dp | 2000000 |
Original volume (m³) V | 1 |
Volume decrease (m³) dV | 0.001 |
Frequently asked questions
Which assumptions matter for this result?
This is an ideal educational model. Enter quantities in the stated SI units; it does not certify equipment safety or real operating limits. Enter a positive volume decrease smaller than the original volume. Small-strain linear compression is assumed.
How can I check the worked example?
Use the displayed example inputs in the stated formula. Keep each quantity in its labelled unit and compare the unrounded result before applying display rounding.