In this table, temperatures are given in degrees Celsius (☌), degrees Fahrenheit (☏), and Kelvin (K). Table showing the density of water at various temperatures in different temperature scales: Temperature (☌) Water Density at Various Temperature Scales Its unique property of maximum density at 4 degrees Celsius also plays a significant role in the preservation of aquatic ecosystems during colder months. The density of water is a crucial factor in various scientific and everyday applications, such as calculating buoyancy, designing ships and submarines, understanding weather patterns, and many other fields. Below this temperature, water starts to expand as it freezes into ice, which is less dense than liquid water. As water cools, it becomes denser until it reaches its maximum density at 4 degrees Celsius (39.2 degrees Fahrenheit). It’s important to note that the density of water can change with variations in temperature and pressure. This means that one liter of water weighs about one kilogram. It is commonly denoted by the symbol “ρ” (rho) and is typically measured in units of kilograms per cubic meter (kg/m³) or grams per milliliter (g/mL).Īt standard atmospheric pressure and temperature (25 degrees Celsius or 77 degrees Fahrenheit), the density of pure water is approximately 1000 kg/m³ or 1 g/mL. The density of water is a physical property that describes how much mass a given volume of water contains. How can I use water density in everyday life?.Can water density affect the performance of ships and boats?.Does the density of water affect weather patterns?.Does the density of water change in different locations on Earth?.How is the density of water used in everyday life?.How does the density of water compare to other liquids?.What units are used to measure the density of water?.Does the density of water change with pressure?. How does water’s density change with temperature?.Density of different liquids with gravity.use water density in engineering and construction.Water Density at Various Temperature Scales.ĭensity of crude oil, Density of fuel oils, Density of lubricating oil and Density of jet fuel as function of temperature.Īs shown in the figures, the change in density is not linear with temperature - this means that the volumetric expansion coefficient for water is not constant over the temperature range. įor other substances, see density and specific weight of acetone, air, ammonia, argon, benzene, butane, carbon dioxide, carbon monoxide, ethane, ethanol, ethylene, helium, hydrogen, methane, methanol, nitrogen, oxygen, pentane, propane and toluene. See also other properties of Water at varying temperature and pressure : Boiling points at high pressure, Boiling points at vacuum pressure, Dynamic and kinematic viscosity, Enthalpy and entropy, Heat of vaporization, Ionization Constant, pK w, of normal and heavy water, Melting points at high pressure, 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. See Water and Heavy Water for thermodynamic properties at standard condtions. The density of water depends on temperature and pressure as shown below: Note! Temperature must be within the ranges 0-370 ☌, 32-700 ☏, 273-645 K and 492-1160 °R to get valid values. The output density is given as g/cm 3, kg/m 3, lb/ft 3, lb/gal(US liq) and sl/ft 3. The calculator below can be used to calculate the liquid water density at given temperatures. See more about the difference between mass and weight Online Water density Calculator The density of water is 1.940 sl/ft 3at 39 ☏ (4 ☌), and the specific weight in Imperial units is In the Imperial system the mass unit is the slug, and is derived from the pound-force by defining it as the mass that will accelerate at 1 foot per square second when a 1 pound-force acts upon it :ġ = 1 * 1 and 1 = 1 /1 In the SI system, specific weight of water at 4☌ will be: G = acceleration due to gravity, units typically and value on Earth usually given as 9.80665 m/s 2or 32.17405 ft/s 2 Specific weight is the ratio of the weight to the volume of a substance: Pure water has its highest density 1000 kg/m 3 or 1.940 slug/ft 3 at temperature 4☌ (=39.2☏). Density is the ratio of the mass to the volume of a substance:
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