Plumbing & Fluid
Pressure to Head Calculator
Convert static pressure difference and fluid head or infer fluid density. Compare SI/US results and review the method, assumptions and related references below.
Change any input to update the calculation. Unit changes preserve the physical quantity.
Inputs
Calculated locally in your browser. No sign-up or input upload.
Results
Fluid head
20.4352 m67.0446 ftPressure difference
200 kPa2 bar29.0075 psiFluid density
998 kg/m³62.3031 lb/ft³Pressure per metre head
9,787.0367 Pa/mCalculation breakdown
- Result interpretation
- Convert static pressure difference and fluid head or infer fluid density
Assumptions & checks
Static pressure/head relationship for an entered constant density. Head is not pipe length; this does not calculate friction losses or an operating pump curve.
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Where does this result go next?
Formula
Convert static pressure difference and fluid head or infer fluid density
Worked example
Using the default values shown in the calculator, the same formula gives the following result. This is a quick sanity check for the calculation, not a design recommendation.
Inputs
- Gauge pressure difference
- 200 kPa
- Fluid density
- 998 kg/m³
Result
- Fluid head
- 20.4352 m
- Pressure difference
- 200 kPa
- Fluid density
- 998 kg/m³
- Pressure per metre head
- 9,787.0367 Pa/m
Technical references for this calculation
Frequently asked questions
What does this result tell me?
Static pressure/head relationship for an entered constant density. Head is not pipe length; this does not calculate friction losses or an operating pump curve.
How can I check the calculation?
Worked example: 200 kPa in fluid of density 998 kg/m³ corresponds to 20.435 m head. Review each stated input and unit; use project-specific values rather than treating the editable example as a requirement.
Reference data & method sources
- NIST SI conversion factors
SI/US dimensional conversions. Geometry and energy balances are stated explicitly, not attributed to a design standard.