# What Is Unit Weight | What Is Density | What Is Unit Weight Material | Unit Weight Building Materials ## 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 mass-to-volume 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

### Unit Weight

1 A.C Sheet 17 Kg/m3
2 Aerocon Bricks 551 to 600 Kg/m3
3 Alcohol 780 Kg/m3
4 Aluminum 2739 Kg/m3
5 Anthracite Coal 1550 Kg/m3
6 Ashes 650 Kg/m3
7 Ballast 1720 Kg/m3
8 Birch Wood 670 Kg/m3
9 Bitumen 1040 Kg/m3
10 Bituminous concrete 2243 Kg/m3
12 Brick 1600 – 1920 Kg/m3
13 Brick Jelly 1420 Kg/m3
14 Brick Masonry 1920 Kg/m3
15 Cast iron 7203 Kg/m3
16 Ceement Slurry 1442 Kg/m3
17 Cement Concrete block 1800 Kg/m3
18 Cement Grout 1500 to 1800 Kg/m3
19 Cement Mortar 2000 Kg/m3
20 Cement Plaster 2000 Kg/m3
21 Cemrent 1400 Kg/m3
22 Chalk 2220 Kg/m3
23 Clay (Damp) 1760 Kg/m3
24 Clay (dry) 1600 Kg/m3
26 Coal Tar 1200 Kg/m3
27 Coarse Aggregate 1680-1750 Kg/m3
28 Cobalt 8746 Kg/m3
29 Copper 8940 Kg/m3
30 Crude Oil 880 Kg/m3
31 Cuddapa 2720 Kg/m3
32 Disel 745 Kg/m3
33 Dry Rubble Masonry 2080 Kg/m3
34 Earth (Dry,loose) 1200 Kg/m3
35 Fly Ash 1120 to 1500 Kg/m3
36 Fly Ash Brick Masonry 2000 to 2100 Kg/m3
37 Fly Ash Bricks 1468 to 1700 Kg/m3
38 Galvanized Iron Steel (0.56 mm) 5 Kg/m3
39 Galvanized Iron Steel (1.63 mm) 13 Kg/m3
40 Gasoline 670 Kg/m3
41 GeoPolimer Concrete 2400 Kg/m3
42 Glass Reinforced Concrete 2000 to 2100 Kg/m3
43 Granite Stone 2460-2800 Kg/m3
44 Graphite 1200 Kg/m3
45 Gravel Soil 2000 Kg/m3
46 Green Concrete 2315 to 2499 Kg/m3
47 Heavy Charcoal 530 Kg/m3
48 Ice 910 Kg/m3
49 Igneous rocks (Felsic) 2700 Kg/m3
50 Igneous rocks (Mafic) 3000 Kg/m3
51 Kerosene 800 Kg/m3
52 Larch Wood 590 Kg/m3
53 Laterite Stone 1019 g/m3
55 Light Charcoal 300 Kg/m3
56 Light Weight Concrete 800 to 1000 Kg/m3
57 Lime Concrete 1900 Kg/m3
58 Lime Plaster 1700 Kg/m3
59 Lime Stone 2400 – 2720 Kg/m3
60 M Sand 1540 Kg/m3
61 Magnesium 1738 Kg/m3
62 Mahogany 545 Kg/m3
63 Mangalore Tiles with Battens 65 Kg/m3
64 Maple 755 Kg/m3
65 Marble Stone 2620 Kg/m3
66 Metamorphic rocks 2700 Kg/m3
67 Mud 1600-1920 Kg/m3
68 Nickel 8908 Kg/m3
69 Nitric Acid (91 percent) 1510 Kg/m3
70 Oak 730 Kg/m3
71 Peat 750 Kg/m3
72 Petrol 720 Kg/m3
73 Pitch 1100 Kg/m3
74 Plain Cement Concrete 2300 Kg/m3
75 Plaster of Paris 881 Kg/m3
76 Plastics 1250 Kg/m3
77 Quarry Dust 1300 to 1450 Kg/m3
78 Quartz 2320 Kg/m3
79 Quick lime 33450 Kg/m3
80 Rapid Hardening Cement 1250 Kg/m3
81 Red Wood 450-510 Kg/m3
82 Reinforced Cement Concrete 2400 Kg/m3
83 Rubber 1300 Kg/m3
84 Rubble stone 1600-1750 Kg/m3
85 Sal Wood 990 Kg/m3
86 Sand 1440-1700 Kg/m3
87 Sandstone 2250 to 2400 Kg/m3
88 Sedimentary rocks 2600 Kg/m3
89 Shale Gas 2500 Kg/m3
90 Silt 2100 Kg/m3
91 Slag 1500 Kg/m3
92 Stainless Steel 7480 Kg/m3
93 Steel 7850 Kg/m3
94 Sulphuric Acid (87 Percent) 1790 Kg/m3
95 Teak 630-720 Kg/m3
96 Tin 7280 Kg/m3
97 Water 1000 Kg/m3
98 Zinc 7135 Kg/m3
FAQ

### 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

Approximate Weights of Various Construction Material 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

MS Square Bars: 10mm to 56 mm
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

A typical 4-inch hollow cinder block weighs 24 lb. or 11 kg. That's 9 lb./4 kg.

### 8 Inch Cinder Block Weight

38 lb.
How much does an 8-inch cinder block weigh? The typical weight of an 8-inch cinder block is 38 lb. or 17 kg.

### Unit Weight of Air

In Metric units: 1.225 kg/m^3. In Imperial units: 0.0765 lb/ft^3.

### 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).