Conversion of density units rho = kg cubic meter unit - psi = pounds per cubic inch - rho = m / V - sengpielaudio
 
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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

 
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   
water vapour 101325 Pa:
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.
 
Some more conversions
 
Conversion: pressure units
Conversion: velocity (speed) units
Conversion: acceleration units
Conversion: length (distance) units
Conversion: area units
Conversion: volume units
Conversion: weight units
Conversion: force units
Conversion: power units
Conversion: energy units
Conversion: temperature units
Conversion: time units
Conversion: prefix units
 
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