Conversion of density units
Definition: density = mass divided by volume; symbol ρ = m / V

ρ (rho) = density, m = mass, V = volume. The SI unit of density is kg/m3.
Water of 4 °C is the reference ρ = 1000 kg/m3 = 1 kg/dm3 = 1 kg/l or 1 g/cm3 = 1 g/ml.

Fill in the appropriate line the known density value

Attention: Do not re-enter the exact number of an answer.

 grains per cubic foot grains per cubic inch grains per cubic metre grams per cubic centimeter grams per cup grams per liter grams per cubic meter kilograms per cubic centimeter kilograms per hectoliter kilograms per liter kilograms per cubic meter liters per gram pounds per cubic foot pounds per cubic inch slugs per cubic foot    reset

Conversions of other density units

 Many people still use g/cm3 (gram per cubic centimeter) or kg/L (kilograms per liter) to measure density. The SI standard is really kg / m3. The following values correspond to the SI standard of 1 kg/m3 = 0.001 g/cm3 = 1000 g/m3 = 0.000001 kg/cm3. 1 kg/dm3 = 1 kg/L = 1000 g/1000 cm3 = 1 g/cm3 = 1 g/ml (water).   Water as the reference with its highest density at 3.98 °C is ρ = 1 g/cm3. The correct SI unit 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.

Density conversion chart

 Unit Name Symbol SI Equivalent kg/m3 gram per cubic centimeter g/cm3 1000 kg/m3 gram per cubic meter g/m3 1×10−3 kg/m3 gram per liter g/l 1 kg/m3 kilogram per cubic decimeter kg/dm3 1000 kg/m3 kilogram per cubic meter kg/m3 1 kg/m3 kilogram per liter kg/l 1000 kg/m3 ounce (av.) per cubic foot oz (av.)/ft3 1.00115 kg/m3 ounce (av.) per cubic inch oz (av.)/in3 1729.99 kg/m3 pound mass per cubic foot lbm/ft3 16.0185 kg/m3 pound mass per cubic inch lbm/in3 2.76799×104 kg/m3 pound mass per cubic yard lbm/yd3 0.593276 kg/m3 pound mass per gallon (UK) lbm/gal (UK) 99.7763 kg/m3 pound mass per gallon (US, liq.) lbm/gal (US, liq.) 119.826 kg/m3 slug per cubic foot slug/ft3 515.379 kg/m3 slug per cubic inch slug/in3 8.90575×105 kg/m3 slug per cubic yard slug/yd3 19.0881 kg/m3 specific gravity 1000 kg/m3

 Density ρ of hard materials (at 20°C and 101.3 kPa) material ρ in kg/m3 aluminium 2710 concrete 1800 ... 2400 led 11340 diamonds 3510 ice (ati 0°C) 920 iron 7860 glass (window glass) 2400 ... 2700 gold 19320 rubber 900 ... 1200 wood (beech 730 ... oak 860 ... fir 470) constantan 8800 cork 480 ... 520 copper 8960 brass (30% Zn) 8500 paper 700 ... 1200 platinum 21450 polypropylene foil 600 ... 910 porcelain 2200 ... 2500 snow (powder) 100 silver 10500 silicon 2330 steel 7850 polystyrene 20 ... 60 cement 800 ... 1900 clay brick 1200 ... 1900 zinc 7130 stannous 7290

 Density ρ of liquids (at 20°C and 101.3 kPa) liquids ρ in kg/m3 acetone 791 benzine 700 ... 780 benzene 870 diesel fuel 840 ... 880 petroleum 730 ... 940 methanol 791 mercury 13530 milk 1020 ... 1050 nitric acid (50%) 1310 (65%) 1400 hydrochloric acid 37% 1180 deuterium 1100 ethanol 96% 830 transformer oil 870 water (distilled) 1000 sea water 1025

 Density ρ of gases (at 20°C and 101.3 kPa) gases p in kg/m3 ammonia 0.771 chlorine 3.214 natural gas (dry) ca. 0.7 helium 0.178 carbon dioxide 1.977 carbon monoxide 1.250 air (dry), no CO2 1.292 methane 0.717 ozone 2.220 propane 2.019 oxygen 1.429 nitrogen 1.251 steam100% 0.880 hydrogen 0.08988 xenon 5.897

 Density, specific gravity, specific weight, weights by volume of snow Fresh snow dry and light 30 – 50 kg/m³ Fresh snow weakly bound 50 – 100 kg/m³ Fresh snow strongly bound 100 – 200 kg/m³ Old snow dry 200 – 400 kg/m³ Old snow wet 300 – 500 kg/m³ Swimming snow 150 – 300 kg/m³ Firn snow (several years) 500 – 800 kg/m³ Ice 800 – 900 kg/m³

Table or chart: The impact of temperature
Density of air (air density), speed of sound, acoustic impedance vs. temperature

 Temperature of air ϑ in °C Speed of sound c in m/s Time per 1 m Δ t in ms/m Density of air ρ in kg/m3 Impedance of air Z0 in N·s/m3 +40 354.94 2.817 1.1272 400.0 +35 351.96 2.840 1.1455 403.2 +30 349.08 2.864 1.1644 406.5 +25 346.18 2.888 1.1839 409.4 +20 343.22 2.912 1.2041 413.3 +15 340.31 2.937 1.2250 416.9 +10 337.33 2.963 1.2466 420.5 +5 334.33 2.990 1.2690 424.3 ±0 331.30 3.017 1.2920 428.0 −5 328.24 3.044 1.3163 432.1 −10 325.16 3.073 1.3413 436.1 −15 322.04 3.103 1.3673 440.3 −20 318.89 3.134 1.3943 444.6 −25 315.72 3.165 1.4224 449.1

Density of water ρ (rho) (pure and airfree)
at standard air pressure
p0 = 101325 Pa between 0°C and 100°C

Temperature (°C) - ρ (kg/m³)  Temperature (°C) - ρ (kg/m³)
0        918.00 (ice)
0        999.84
1        999.90
2        999.94
3        999.96
4        999.97 ●
5        999.96
6        999.94
7        999.90
8        999.85
9        999.78
10        999.70
11        999.60
12        999.50
13        999.38
14        999.24
15        999.10
16        998.94
17        998.77
18        998.59
19        998.40
20        998.20
21        997.99
22        997.77
23        997.54
24        997.29
25        997.04

Water vapour 101325 Pa:
26        996.78
27        996.51
28        996.23
29        995.94
30        995.64
31        995.34
32        995.02
33        994.70
34        994.37
35        994.03
36        993.68
37        993.32
38        992.96
39        992.59
40        992.21
45        990.21
50        988.03
55        985.69
60        983.19
65        980.55
70        977.76
75        974.84
80        971.79
85        968.61
90        965.30
95        961.88
100        958.35

100         0.5

 The dependence of the pressure on the water density is low. Per 1 bar = 100000 Pa pressure increase, the density increases to about 0.046 kg/m³. Therefore normal air pressure fluctuations have practically no influence on the density of water.

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