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Density units conversions conversion pound cubic foot inch kg m3 density of water, density, h2o, saline, salinity, salt, TDS, temperature - sengpielaudio Sengpiel Berlin

  • ️Eberhard Sengpiel
  • ️Tue Jul 01 2014
Conversion of units: density length area volume weight pressure temperature time energy power - sengpielaudio    

Density = mass / volume      ρ = m / V

Please enter two values, the third value will be calculated.

You can also enter the density in g/cm³, the mass in g, and the volume in cm³.

Conversions of many more density units

Density conversion factors from non-SI units

Unit Symbol Equivalent SI value
pounds per cubic foot lb / ft3 16.018 46 kg / m3
slugs per cubic foot slug / ft3 515.378 8 kg / m3
pounds per cubic inch lb / in3 27 679.90 kg / m3

Many people still use g/cm3 (gram per cubic centimeter) or kg/L (kilograms per liter) to measure density.
SI standard is kg/m3. 1 kg/dm3 = 1000 g/1000 cm3 = 1 kg/L.

Water is the reference with its highest density at 3.98°C (ρ = 1 g/cm3)
The correct SI unit of denstity of water is "ρ = 1000 kg/m3". 1 m3 = 1,000,000 cm3.

Examples: Solid - water - noble gas
Copper has a density of 8950 kg/m3 = 8.95 kg/dm3 = 8.95 g/cm3.
Water has a density of 1000 kg/m3 = 1000 g/L = 1 kg/dm3 = 1 kg/L = 1 g/cm3 = 1 g/mL.
Helium has a density of 0.1785 kg/m3 = 0.1785 g/L = 0.0001785 kg/dm3 = 0.0001785 kg/L =
0.0001785 g/cm3 = 0.0001785 g/mL.

From 1901 to 1964, a litre was defined as exactly the volume of 1 kg of water at maximum density, and the maximum density of pure water was 1.000 kg/L. The maximum density of pure water at a pressure of one standard atmosphere is 999.972 kg/m3 at a temperature of 3.98 °C (277.13 K), that is 0.999 972 kg/L.

Calculation of water density (density of water H2O)

Sea water has 30000 to 40000 ppm (parts per million) = mg/L salinity.
TDS = Total Dissolved Solids, e.g. 3.5 % = 35 ppt = 35000 ppm.

Some dinosours are still asking: What is the density of water in English units?
Ok, if you really need it: The density of water is roughly 62.4 lb per cubic foot. The density of water varies somewhat with temperature and pressure, and is higher for salt water than fresh water, 1 pound per cubic foot = 16.0184634 kg / m3 and
1 kg/m3 = 0.0624279605 pounds per cubic foot.

Density of water and the dependence on temperature

Density of Water and the Dependence
on the Temperature  |  3.98°C ρ = 999.975
Temp.(°C)  ρ (kg/m3) Temp.(°C)  ρ (kg/m3)
   0               999.84  27               996.51
   1               999.90  28               996.23
   2               999.94  29               995.94
   3               999.96  30               995.64
   4           ● 999.97  31               995.34
   5               999.96  32               995.02
   6               999.94  33               994.70
   7               999.90  34               994.37
   8               999.85  35               994.03
   9               999.78  36               993.68
 10               999.70  37               993.32
 11               999.60  38               992.96
 12               999.50  39               992.59
 13               999.38  40               992.21
 14               999.24  45               990.21
 15               999.10  50               988.03
 16               998.94  55               985.69
 17               998.77  60               983.19
 18               998.59  65               980.55
 19               998.40  70               977.76
 20               998.20  75               974.84
 21               997.99  80               971.79
 22               997.77  85               968.61
 23               997.54  90               965.30
 24               997.29  95               961.88
 25               997.04 100              958.35
 26               996.78 Ice 0°C        916,80

Tabular value ÷ 1000 = density in kg/dm3 or in kg/L or in g/cm3 or in g/mL

Calculations of air density (density of air)