The Density of Water at Standard Temperature and Pressure is 62.316 lbs/ft 3. This is used as a reference substance for defining Specific Gravity. The Density of Water at Standard Temperature and Pressure (STP) is 998.2071 kg/m3 in SI units.
Water Related Calculators
- Underwater Pressure: Computes the added pressure exerted underwater by the water column directly overhead as a function of the density of the water, depth under water, and the acceleration due to gravity.
- Pore Water Pressure: Measure of the pressure of groundwater held within a soil or rock, in gaps between particles (pores), relative to atmospheric pressure.
- Osmotic Pressure: Computes the osmotic pressure based on the molar concentration of the solution (M), the temperature (T) and the Ideal Gas Constant (R).
- Density of water at STP: 998.2071 kg / m3
- Density of Deawater: 1,025 kg / m3
- Saltwater Intrusion: Uses the Ghyben-Herzberg Relation to compute the depth of fresh water in an aquifer below sea leve based on the depth of fresh water above sea level.
- Snow or Water Density: Returns the kilograms per meters cubed (kg/m3) for snow of different types or water at different temperatures per the US Geological Survey (USGS).
- Water Density by Temperature: Computes the density of water as a function of temperature, using the standard density of water (ρ) at standard temperature and pressure, and the unique temperature expansion coefficient of water.
- Pressure to Water Depth: Computes approximated depth of water where the pressure would occur.
- Bernoulli's Equation (Pressure): Uses Bernoulli's equation to compute fluid pressure (p1) based on the fluid velocities, heights and second pressure (p2).
- Bernoulli's Equation (Velocity): Uses Bernoulli's equation to compute fluid velocity (v1) based on the pressures, heights and second velocity (v2).
- Bernoulli's Equation (Elevation): Uses Bernoulli's equation to compute elevation (h1) based on the pressures, fluid velocitities and second height (h2)
- Volume of Water in a Well: Compute the volume of water in a well based on the static water level and the diameter of the well pipe..
- Pressure to Water Depth: Computes the height needed to acheive a desired pressure considering the density of liquid (e.g., water).
- Pressure Head: Computes the pressure based on the height of Gravity-Fed water from a tank or resevoir.
- Underwater Pressure: Computes the added pressure exerted underwater by the water column directly overhead as a function of the density of the water, depth under water, and the acceleration due to gravity.
- Heat Load and Water Flow: Computes the ton of heat capacity associated with a volumetric flow of water and a change in temperature.
The Math / Science
NIST uses a temperature of 20 C (293.15 K, 68 F) and an absolute pressure of 101.325 kPa (14.696 psi, 1 atm).
The International Standard Metric Conditions for natural gas and similar fluids are 288.15 K (59.00 F; 15.00 C) and 101.325 kPa.[2]
In chemistry, IUPAC established standard temperature and pressure (informally abbreviated as STP) as a temperature of 273.15 K (0 C, 32 F) and an absolute pressure of 100 kPa (14.504 psi, 0.987 atm, 1 bar).[1] An unofficial, but commonly used standard is standard ambient temperature and pressure (SATP) as a temperature of 298.15 K (25 C, 77 F) and an absolute pressure of 100 kPa (14.504 psi, 0.987 atm). The STP and the SATP should not be confused with the standard state commonly used in thermodynamic evaluations of the Gibbs energy of a reaction.