Eye toggles curve, fluid name replaces slot, lock icon switches the primary fluid.

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P–Q

P–T uses pressure and temperature. P–Q uses pressure and quality.

Two-Phase

R134a @ 0.1 MPa / 0 -

Specific Heat (Cp)	1.280	kJ/kg·K
Specific Heat (Cv)	0.848	kJ/kg·K
Speed of Sound	743.306	m/s
Dynamic Viscosity	380.272	μPa·s
Thermal Conductivity	104.042	mW/m·K
Prandtl Number (Pr)	4.678	-
Derived (computed) Derived by FluidTool from the properties above (not a direct CoolProp output).
Kinematic Viscosity (ν)	0.276	mm²/s
Thermal Diffusivity (α)	0.059	mm²/s
Heat Capacity Ratio (Cp/Cv)	1.510	-

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Fluid properties calculator for CoolProp lookup and P-h diagrams

Calculate pressure, temperature, enthalpy, density, entropy, quality, viscosity, conductivity, and specific heat for refrigerants and other fluids.

Use it for fluid property lookup, refrigerant P-h diagrams, saturation checks, superheat/subcooling work, and CSV-ready engineering results.

Fluid Properties Calculator and P-h Diagram