Table of Contents
What Is Unit Weight?
The ratio of the weight of a material to its volume is its unit weight, sometimes termed specific weight or weight density. The unit weight of water, γw, is 9.81 kN/m3 in the SI system and 62.4 lb/ft3 in the English system.
What Is Density?
The term density is used herein to denote the masstovolume ratio of the material. However, some references, particularly older ones, use the term to describe unit weight.
Density is denoted by p. Because m = W/g, the unit weight terms defined above can be converted to mass densities as follows:
ρ = M/V
ρ = Density
M = Mass
V = Volume
In the SI system mass densities are commonly expressed in Mg/m3, kg/m3, or g/ml. The mass density of water can therefore be expressed ρw = 1000 kg/m3 = 1 Mg/m3 = 1 g/ml.
The mass density of soil solids typically ranges from 2640 to 2750 kg/m3. Where mass or mass density values (g, kg, or kg/m3) are given or measured, they must be multiplied by g(9.8 m/s2) to obtain weights or unit weights before performing stress calculations.
In the English system mass density values are virtually never used in geotechnical engineering and all work is performed in terms of unit weights (1b/ft3).
What Is Unit Weight Material?
Unit weight material is also known as Specific material weight. Unit weight material is the weight of the material per unit volume. As we know that the volume is identified in terms of liters or m3 and weight is measured in terms of Kg or KN.
The unit weight of materials is the weight of material/unit volume which means the Unit weight is expressed in Kg/L or KG/m3 or KN/m3. For easy reference, we organized all the building materials unit weights in a table. This list is a collective effort. Give a thumbs up if you liked it. Bookmark the page and use the search if required.
Unit Weight Building Materials
Sr.No.

Material

Unit Weight

1  A.C Sheet  17 Kg/m^{3} 
2  Aerocon Bricks  551 to 600 Kg/m^{3} 
3  Alcohol  780 Kg/m^{3} 
4  Aluminum  2739 Kg/m^{3} 
5  Anthracite Coal  1550 Kg/m^{3} 
6  Ashes  650 Kg/m^{3} 
7  Ballast  1720 Kg/m^{3} 
8  Birch Wood  670 Kg/m^{3} 
9  Bitumen  1040 Kg/m^{3} 
10  Bituminous concrete  2243 Kg/m^{3} 
11  Bituminous Macadum  2400 Kg/m^{3} 
12  Brick  1600 – 1920 Kg/m^{3} 
13  Brick Jelly  1420 Kg/m^{3} 
14  Brick Masonry  1920 Kg/m^{3} 
15  Cast iron  7203 Kg/m^{3} 
16  Ceement Slurry  1442 Kg/m^{3} 
17  Cement Concrete block  1800 Kg/m^{3} 
18  Cement Grout  1500 to 1800 Kg/m^{3} 
19  Cement Mortar  2000 Kg/m^{3} 
20  Cement Plaster  2000 Kg/m^{3} 
21  Cemrent  1400 Kg/m^{3} 
22  Chalk  2220 Kg/m^{3} 
23  Clay (Damp)  1760 Kg/m^{3} 
24  Clay (dry)  1600 Kg/m^{3} 
25  Clinker  750 Kg/m^{3} 
26  Coal Tar  1200 Kg/m^{3} 
27  Coarse Aggregate  16801750 Kg/m^{3} 
28  Cobalt  8746 Kg/m^{3} 
29  Copper  8940 Kg/m^{3} 
30  Crude Oil  880 Kg/m^{3} 
31  Cuddapa  2720 Kg/m^{3} 
32  Disel  745 Kg/m^{3} 
33  Dry Rubble Masonry  2080 Kg/m^{3} 
34  Earth (Dry,loose)  1200 Kg/m^{3} 
35  Fly Ash  1120 to 1500 Kg/m^{3} 
36  Fly Ash Brick Masonry  2000 to 2100 Kg/m^{3} 
37  Fly Ash Bricks  1468 to 1700 Kg/m^{3} 
38  Galvanized Iron Steel (0.56 mm)  5 Kg/m^{3} 
39  Galvanized Iron Steel (1.63 mm)  13 Kg/m^{3} 
40  Gasoline  670 Kg/m^{3} 
41  GeoPolimer Concrete  2400 Kg/m^{3} 
42  Glass Reinforced Concrete  2000 to 2100 Kg/m^{3} 
43  Granite Stone  24602800 Kg/m^{3} 
44  Graphite  1200 Kg/m^{3} 
45  Gravel Soil  2000 Kg/m^{3} 
46  Green Concrete  2315 to 2499 Kg/m^{3} 
47  Heavy Charcoal  530 Kg/m^{3} 
48  Ice  910 Kg/m^{3} 
49  Igneous rocks (Felsic)  2700 Kg/m^{3} 
50  Igneous rocks (Mafic)  3000 Kg/m^{3} 
51  Kerosene  800 Kg/m^{3} 
52  Larch Wood  590 Kg/m^{3} 
53  Laterite Stone  1019 g/m^{3} 
54  Lead  11340 Kg/m^{3} 
55  Light Charcoal  300 Kg/m^{3} 
56  Light Weight Concrete  800 to 1000 Kg/m^{3} 
57  Lime Concrete  1900 Kg/m^{3} 
58  Lime Plaster  1700 Kg/m^{3} 
59  Lime Stone  2400 – 2720 Kg/m^{3} 
60  M Sand  1540 Kg/m^{3} 
61  Magnesium  1738 Kg/m^{3} 
62  Mahogany  545 Kg/m^{3} 
63  Mangalore Tiles with Battens  65 Kg/m^{3} 
64  Maple  755 Kg/m^{3} 
65  Marble Stone  2620 Kg/m^{3} 
66  Metamorphic rocks  2700 Kg/m^{3} 
67  Mud  16001920 Kg/m^{3} 
68  Nickel  8908 Kg/m^{3} 
69  Nitric Acid (91 percent)  1510 Kg/m^{3} 
70  Oak  730 Kg/m^{3} 
71  Peat  750 Kg/m^{3} 
72  Petrol  720 Kg/m^{3} 
73  Pitch  1100 Kg/m^{3} 
74  Plain Cement Concrete  2300 Kg/m^{3} 
75  Plaster of Paris  881 Kg/m^{3} 
76  Plastics  1250 Kg/m^{3} 
77  Quarry Dust  1300 to 1450 Kg/m^{3} 
78  Quartz  2320 Kg/m^{3} 
79  Quick lime  33450 Kg/m^{3} 
80  Rapid Hardening Cement  1250 Kg/m^{3} 
81  Red Wood  450510 Kg/m^{3} 
82  Reinforced Cement Concrete  2400 Kg/m^{3} 
83  Rubber  1300 Kg/m^{3} 
84  Rubble stone  16001750 Kg/m^{3} 
85  Sal Wood  990 Kg/m^{3} 
86  Sand  14401700 Kg/m^{3} 
87  Sandstone  2250 to 2400 Kg/m^{3} 
88  Sedimentary rocks  2600 Kg/m^{3} 
89  Shale Gas  2500 Kg/m^{3} 
90  Silt  2100 Kg/m^{3} 
91  Slag  1500 Kg/m^{3} 
92  Stainless Steel  7480 Kg/m^{3} 
93  Steel  7850 Kg/m^{3} 
94  Sulphuric Acid (87 Percent)  1790 Kg/m^{3} 
95  Teak  630720 Kg/m^{3} 
96  Tin  7280 Kg/m^{3} 
97  Water  1000 Kg/m^{3} 
98  Zinc  7135 Kg/m^{3} 
Unit Weight of Materials
Unit weight or specific weight of any material is its weight per unit volume which means in a unit volume, how much weight of the material can be placed. Volume is measured in liters or cubic meters, and weight is expressed in kg or kilo Newton.
Unit Weight of Sand
Unit weight or Specific Weight of sand is calculated by the product of the density of sand and the standard gravity of sand. According to the US customary measurement system, dry weighs 1.631 grams per cubic centimeter, this density is equal to 101.8 pounds per cubic foot [lb/ft³].
Weight of Sand Per Cubic Foot
101.8 pounds per cubic foot
Specific Weight or Unit weight of Sand
Unit weight or Specific Weight of sand is calculated by the product of the density of sand and the standard gravity of sand. According to the US customary measurement system, dry weighs 1.631 gram per cubic centimeter, this density is equal to 101.8 pounds per cubic foot [lb/ft³].
Cubic Foot of Sand Weight
A cubic foot of sand, which visually is 1 foot long by 1 foot wide by 1 foot tall, should weigh about 100 pounds dry, and a little more if damp. Dry sand weighs between 100 to 115 pounds for one cubic foot. Wet sand weighs between 115 to 130 pounds per cubic foot.
Sand Weight Per Cubic Yard
Material  lbs./ cu. yd.  tons/ cu. yd. 

Sand, dry, loose  2619  1.30 
Sand, wet  3186  1.59 
Sandstone  4023  2.01 
Slag, bank  1890  .94 
Unit Weight of Water
A common unit of measurement for water's density is a gram per milliliter (1 g/ml) or 1 gram per cubic centimeter (1 g/cm3). Actually, the exact density of water is not really 1 g/ml, but rather a bit less (very, very little less), at 0.9998395 g/ml at 4.0° Celsius (39.2° Fahrenheit).
Weight of Stainless Steel Per Cubic Inch
Calculating the Weight of Stainless Steel Plate (300 Series)
The density of the stainless steel 300 series is 0.289 pounds per cubic inch (501 pounds/cubic inch) (imperial) or 7.85 grams per centimeter cubed (metric).
Cmu Block Weight
Regarding this, “how much does an 8″ cinder block (CMU) weigh?” Most, generally standard 8″ full CMU or cinder block weighs between 28 – 35 pounds, based on heavy, medium, and lightweight conditions and it has a size of 8 inches wide by 8 inches high by 16 inches long, which is represented in nominal size as 8 in × 8 in × 16
Unit Weight of Steel
7850 kg/m³
It is the ratio of the weight of steel per unit volume.
Its SI unit is kg/m³. The unit weight of steel is 7850 kg/m³.
Weight of Steel Per Cubic Inch
0.2833 pounds per cubic inch
Steel weighs 0.2833 pounds per cubic inch.
Rebar Unit Weight
Generally, the Unit Weight of rebar is about 7850 kg/m3, when it is measured in pounds per cubic foot, then it will be 490 lb/ft3.
Unit Weight of Concrete
Normal weight concrete is in the range of 140  150 lbs./cu. ft.
Weight of Concrete Per Cubic Foot
150 pounds per cubic foot
Concrete Weight per Cubic Foot
A solid slab of concrete weighs 150 pounds per cubic foot. A cubic foot of broken concrete weighs 75 pounds.
Square Bar Unit Weight
Size in mm  Average Weight  

KG/MTR  KG/FT  
10 x 10  0.80  0.20 
12 x 12  1.10  0.30 
14 x 14  1.50  0.50 
4 Inch Concrete Block Weight
8 Inch Cinder Block Weight
38 lb.
How much does an 8inch cinder block weigh? The typical weight of an 8inch cinder block is 38 lb. or 17 kg.
Unit Weight of Air
Base Unit of Weight
The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.
Lg Weight Unit
Unit Name  Symbol  SI Equivalent kg 

hectogram  hg  0.1 kg 
hundredweight (gross or long)  cH, cwt, lg cwt  50.802345440 kg 
hundredweight (net or short)  sh. cwt  45.3592370 kg 
hundredweight (UK, avoirdupois)  cwt (av.)  50.80234544 kg 
Si Unit of Weight
The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.
Specific Weight Formula
The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.
Unit of Mass and Weight
The kilogram is the SI unit of mass and it is the almost universally used standard mass unit. The associated SI unit of force and weight is Newton, with 1 kilogram weighing 9.8 Newtons under standard conditions on the Earth's surface.
Metric Unit for Weight
The Metric System of Measurements uses the mass units: gram (g), kilogram (kg), and tonne (t).
Unit Weight Formula
=  specific weight  
=  density  
=  standard gravity 
Smallest Unit of Weight
An ounce is the smallest unit of weight. A strawberry has a weight of about 1 ounce. A car has a weight of about 2 tons. To convert from one unit to another, we can use unit analysis.
Unit of Weight in Physics
In physics, the term weight has a specific meaning  which is the force that acts on a mass due to gravity. Weight is measured in newtons. Mass is measured in kilograms.
Mass of Water in Kg
Water has a density of 1 kg /L, that is, 1 liter of water has a mass of exactly 1 kg.
Units of Weight Measurement
The Metric System of Measurements uses the mass units: gram (g), kilogram (kg), and tonne (t).
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