Ice and Water - Melting Points vs. Pressure
Melting point: The temperature at which a solid turns into a liquid.
The melting point of water is dependent of the pressure above the ice (solid water), and the melting point or freezing temperature decreases with increasing pressure. By definition 0 °C is at the melting point of water at 1 atmosphere pressure.
Online Ice to Water Melting Point Calculator
The calculator below can be used to calculate the water melting point at given pressures.
The output temperature is given as °C, °F, K and °R.
Note! Pressure must be within the ranges 0.01-2000 bara, 0.1-29 000 psia, 5-1500 000 mm Hg or 0.2-59000 in Hg.
Choose the actual unit of pressure:
See Water and Heavy Water for thermodynamic properties at standard condtions.
See also other properties of Water at varying temperature and pressure : Boiling points at high pressure , Boiling points at vacuum pressure , Density and specific weight , Dynamic and kinematic viscosity , Enthalpy and entropy , Heat of vaporization , Ionization Constant, pK w , of normal and heavy water , Prandtl number , Properties at Gas-Liquid Equilibrium Conditions , Saturation pressure , Specific gravity , Specific heat (heat capacity) , Specific volume , Thermal conductivity , Thermal diffusivity and Vapour pressure at gas-liquid equilibrium .
| Pressure | Temperature | |||||
|---|---|---|---|---|---|---|
| [MPa] | [bara] | [psia] | [mm Hg] | [in Hg] | [°C] | [°F] |
| 0.000612 | 0.00612 | 0.089 | 4.59 | 0.18 | 0.01 | 32.02 |
| 0.1 | 1.01325 | 14.7 | 750 | 29.5 | 0.0026 | 32.00 |
| 1 | 10 | 145 | 7501 | 295 | -0.064 | 31.88 |
| 2 | 20 | 290 | 15001 | 591 | -0.14 | 31.75 |
| 5 | 50 | 725 | 37503 | 1476 | -0.37 | 31.33 |
| 10 | 100 | 1450 | 75006 | 2953 | -0.75 | 30.65 |
| 15 | 150 | 2176 | 112509 | 4429 | -1.14 | 29.95 |
| 20 | 200 | 2901 | 150012 | 5906 | -1.54 | 29.23 |
| 30 | 300 | 4351 | 225019 | 8859 | -2.36 | 27.75 |
| 40 | 400 | 5802 | 300025 | 11812 | -3.21 | 26.22 |
| 50 | 500 | 7252 | 375031 | 14765 | -4.09 | 24.64 |
| 60 | 600 | 8702 | 450037 | 17718 | -5.00 | 23.00 |
| 70 | 700 | 10153 | 525043 | 20671 | -5.94 | 21.31 |
| 80 | 800 | 11603 | 600049 | 23624 | -6.91 | 19.56 |
| 90 | 900 | 13053 | 675056 | 26577 | -7.91 | 17.76 |
| 100 | 1000 | 14504 | 750062 | 29530 | -8.94 | 15.91 |
| 120 | 1200 | 17405 | 900074 | 35436 | -11.09 | 12.04 |
| 140 | 1400 | 20305 | 1050086 | 41342 | -13.35 | 7.97 |
| 160 | 1600 | 23206 | 1200099 | 47248 | -15.73 | 3.69 |
| 180 | 1800 | 26107 | 1350111 | 53154 | -18.22 | -0.80 |
| 200 | 2000 | 29008 | 1500123 | 59060 | -20.83 | -5.49 |
Related Topics
• Material Properties
Properties of gases, fluids and solids. Densities, specific heats, viscosities and more.
• Melting and Freezing Points
Melting and freezing points of elements and chemical species at varying conditions.
• Steam and Condensate
Design of steam & condensate systems with properties, capacities, sizing of pipe lines, system configuration and more.
• Thermodynamics
Calculate heat, work, temperature and energy. The thermodynamics of steam and condensate systems. Water and Ice properties.
• Thermodynamics
Work, heat and energy systems.
• Water Systems
Design of hot and cold water service and utility systems with properties, capacities, sizing of pipe lines and more.
Related Documents
Compressed Water - Properties vs. Temperature
Specific volume, enthalpy and entropy of compressed water.
Evaporation from a Water Surface
Evaporation of water from a water surface - like a swimming pool or an open tank - depends on water temperature, air temperature, air humidity and air velocity above the water surface - online calculator.
Gases Solved in Water - Diffusion Coefficients
Diffusion flux [kg/m2s] tells how fast a substanse solved in another substance flows due to concentration gradients. Diffusion constants [m2/s] for several gases in water.
Heavy Water - Thermophysical Properties
Thermodynamic properties of heavy water (D2O) like density, melting temperature, boiling temperature, latent heat of fusion, latent heat of evaporation, critical temperature and more.
Ice - Properties
Properties like Youngs modulus, tensile strength, compressive strength and fracture of toughness for ice.
Ice - Thermal Properties
Thermal and thermodynamic properties of ice like density, thermal conductivity and specific heat at temperatures from 0 to -100 oC.
Liquids - Densities vs. Pressure and Temperature Change
Densities and specific volume of liquids vs. pressure and temperature change.
Saturated Ice and Steam - Thermodynamic Properties
Thermodynamic properties of saturated ice and steam - specific volume, enthalpy and entropy.
Soft or Hard Water
Carbonates dissolved in water.
Supercooled Water - Vapor Pressure vs. Temperature
Undercooled water and vapor pressure.
Water - Boiling Points at Higher Pressures
Online calculator, figures and tables showing boiling points of water at pressures ranging from 14.7 to 3200 psia (1 to 220 bara). Temperature given as °C, °F, K and °R.
Water - Boiling Points at Vacuum Pressure
Online calculator, figures and tables giving the boiling temperatures of water in varying vacuum, SI and Imperial units.
Water - Density, Specific Weight and Thermal Expansion Coefficients
Definitions, online calculator and figures and tables with water properties like density, specific weight and thermal expansion coefficient of liquid water at temperatures ranging 0 to 360°C (32 to 680°F).
Water - Dynamic (Absolute) and Kinematic Viscosity vs. Temperature and Pressure
Free online calculator - figures and tables with viscosity of water at temperatures ranging 0 to 360°C (32 to 675°F) - Imperial and SI Units.
Water - Enthalpy and Entropy vs. Temperature
Figures and tables showing the enthalpy and entropy of liquid water as function of temperature - SI and Imperial Units.
Water - Heat of Vaporization vs. Temperature
Online calculator, figures and tables showing heat of vaporization of water, at temperatures from 0 - 370 °C (32 - 700 °F) - SI and Imperial units.
Water - Ionization Constant, pKw, of Normal and Heavy Water
Ionization constant (= dissociation constant = self-ionization constant = ion product = autoprotolysis constant ) of water and heavy water, given as function of temperature (°C and °F) in figures and tables.
Water - Properties at Gas-Liquid Equilibrium Conditions
Figures and tables showing how the properties of water changes along the boiling/condensation curve (vapor pressure, density, viscosity, thermal conductivity, specific heat, Prandtl number, thermal diffusivity, entropy and enthalpy).
Water - Properties vs. Temperature and Pressure
Liquid water properties at temperatures between melting point and boiling point and pressures of 14.7 psia, 1000 psia and 10000 psia (1 atm, 68.1atm and 681 atm).
Water - Saturation Pressure vs. Temperature
Online calculator, figures and tables with water saturation (vapor) pressure at temperatures ranging 0 to 370 °C (32 to 700°F) - in Imperial and SI Units.
Water - Specific Gravity vs. Temperature
Figures and tables showing specific gravity of liquid water in the range of 32 to 700 °F or 0 to 370°C, using water density at four different temperatures as reference.
Water - Specific Heat vs. Temperature
Online calculator, figures and tables showing specific heat of liquid water at constant volume or constant pressure at temperatures from 0 to 360 °C (32-700 °F) - SI and Imperial units.
Water - Specific Volume vs. Temperature
Online calculator, figures and tables showing Specific Volume of water at temperatures ranging from 0-370 °C and 32 - 700 °F - Imperial and IS Units.
Water - Thermal Conductivity vs. Temperature
Figures and tables showing thermal conductivity of water (liquid and gas phase) with varying temperature and pressure, SI and Imperial units.
Water - Thermal Diffusivity vs. Temperature and Pressure
Figures and tables with thermal diffusivity of liquids and gaseous water at varying temperarures and pressures - SI and Imperial units.
Water - Thermophysical Properties
Thermal properties of water at different temperatures like density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more.