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Table of Contents
Introduction
Concrete is one of the most commonly used construction materials worldwide due to its strength, durability, and exceptional versatility. There are several different types of concrete, and different types of concrete can have different densities, and thus different weights for the same volume. By accurately estimating the weight and volume of your specific concrete structure, you can better plan for transportation, structural support, and costs.
This concrete weight calculator helps you estimate the weight of concrete based on structural dimensions, volume, and material density.
How to Use this Concrete Weight Calculator
- Select Your Unit System
At the top, choose whether you want to work in USA (Imperial) units (feet, inches, pounds) or Metric units (meters, millimeters, kilograms). - Pick a Concrete Shape
- Rectangular: For slabs, beams, footings, or other square or rectangular blocks.
- Round: For columns, footings, or other cylindrical shapes.
- Steps: For a solid block of concrete shaped like a staircase. This assumes the entire area under the steps is solid – imagine filling the steps from the ground up with concrete, so there is no hollow space underneath.
- Volume Only: If you already know the total volume of concrete, simply enter it directly.
- Choose Your Concrete Density
- Type of Concrete: Pick from the predefined list (Normal-Weight, Lightweight, etc.). This automatically uses a typical density value for the selected type.
- Custom Concrete Density: Enter your own density if you have a specific value different from the preset options, or use a density from the Concrete Density Table below for concrete types not already included in the calculator.
- Enter Dimensions
Depending on the shape you chose, you’ll see input fields for length, width, height, diameter, etc. For Steps, enter:- The total number of risers (the number of steps).
- The width of the entire staircase.
- The riser height, tread depth, and the top step (landing) depth, which is often different than a regular tread depth.
The calculator then assumes a solid volume beneath those steps, so you’re effectively getting a single large concrete block with a stepped upper surface.
- Remember to set the appropriate unit (inches, feet, millimeters, meters) for each of your inputs.
- Calculate or Clear
- Click Calculate to see the total volume and estimated weight of your concrete in the chosen units.
- Click Clear Calculator to reset all fields and start over.
Disclaimer: Remember, this tool is intended to be an approximate guide which can give you a general idea of what concrete of a particular volume weighs. If precise values are necessary for critical engineering calculations, consult a professional engineer.
Concrete Weight Calculator
Concrete Weight Calculator
Concrete Density Factors
Concrete density is mostly determined by the types of aggregates used and the amount of voids (air pockets) within the mixture. Heavier aggregates, like crushed granite, increase the concrete’s density, while lighter aggregates or foaming agents reduce it. Additional factors such as the water-to-cement ratio, entrained air content, and presence of chemical or mineral admixtures influence how tightly the particles in the concrete can pack together and the overall pore structure within the hardened mix. By adjusting these variables, engineers can produce concrete that spans a wide range of densities—from very lightweight insulating concretes up to super high-density mixes for radiation shielding.
Concrete Density Table
| Concrete Densities | ||||
|---|---|---|---|---|
| Type of Concrete | Density Range (kg/m³) |
Density Range (lb/ft³) |
Commonly Used Density (kg/m³) | Commonly Used Density (lb/ft³) |
| Aerated Concrete | 300–1920 kg/m³ | 19–120 lb/ft³ | 600 kg/m³ | 37 lb/ft³ |
| Air-entrained Concrete | 1,800–2,400 kg/m³ | 112–150 lb/ft³ | 1,920 kg/m³ | 120 lb/ft³ |
| Asphalt Concrete | 2,200–2,400 kg/m³ | 137–150 lb/ft³ | 2,350 kg/m³ | 147 lb/ft³ |
| Autoclaved Aerated Concrete | 300–900 kg/m³ | 19–56 lb/ft³ | 600 kg/m³ | 37 lb/ft³ |
| Cellular Concrete | 300–1,800 kg/m³ | 19–112 lb/ft³ | 1,000 kg/m³ | 62 lb/ft³ |
| Fiber-Reinforced Concrete (FRC) | 2,300–2,500 kg/m³ | 144–156 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Foam Concrete | 400–1,600 kg/m³ | 25–100 lb/ft³ | 1,200 kg/m³ | 75 lb/ft³ |
| Glass Fiber Reinforced Concrete (GFRC) | 1,800–2,100 kg/m³ | 112–131 lb/ft³ | 2,000 kg/m³ | 125 lb/ft³ |
| Gypsum Concrete | 1,400–1,900 kg/m³ | 87–119 lb/ft³ | 1,760 kg/m³ | 110 lb/ft³ |
| High-Density Concrete | 3,000–4,000 kg/m³ | 187–250 lb/ft³ | 3,500 kg/m³ | 218 lb/ft³ |
| High-Performance Concrete | 2,400–2,600 kg/m³ | 150–162 lb/ft³ | 2,450 kg/m³ | 153 lb/ft³ |
| Lightweight Concrete | 1,440–1,840 kg/m³ | 90–115 lb/ft³ | 1,800 kg/m³ | 112 lb/ft³ |
| Lightweight Insulating Concrete | 300–1,000 kg/m³ | 19–62 lb/ft³ | 480 kg/m³ | 30 lb/ft³ |
| Low-Density Structural Concrete | 1,400–1,840 kg/m³ | 87–115 lb/ft³ | 1,700 kg/m³ | 106 lb/ft³ |
| Normal-Weight Concrete | 2,200–2,500 kg/m³ | 137–156 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Pervious Concrete | 1,600–2,000 kg/m³ | 100–125 lb/ft³ | 1,900 kg/m³ | 119 lb/ft³ |
| Polymer Concrete | 2,200–2,400 kg/m³ | 137–150 lb/ft³ | 2,300 kg/m³ | 144 lb/ft³ |
| Pre-Stressed Concrete | 2,400–2,500 kg/m³ | 150–156 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Precast Concrete | 2,400–2,500 kg/m³ | 150–156 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Regular Concrete (Unreinforced) | 2,200–2,500 kg/m³ | 137–156 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Roller-Compacted Concrete (RCC) | 2,200–2,500 kg/m³ | 137–156 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Self-Consolidating Concrete (SCC) | 2,000–2,400 kg/m³ | 125–150 lb/ft³ | 2,350 kg/m³ | 147 lb/ft³ |
| Self-Leveling Concrete | 1,840–2,300 kg/m³ | 115–144 lb/ft³ | 2,100 kg/m³ | 131 lb/ft³ |
| Shotcrete | 2,200–2,400 kg/m³ | 137–150 lb/ft³ | 2,300 kg/m³ | 144 lb/ft³ |
| Stamped Concrete | 2,300–2,400 kg/m³ | 144–150 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Structural Concrete (Reinforced) | 2,400–2,500 kg/m³ | 150–156 lb/ft³ | 2,400 kg/m³ | 150 lb/ft³ |
| Ultra-High-Performance Concrete | 2,400–2,600 kg/m³ | 150–162 lb/ft³ | 2,500 kg/m³ | 156 lb/ft³ |
| Vacuum Concrete | 2,400–2,500 kg/m³ | 150–156 lb/ft³ | 2,450 kg/m³ | 153 lb/ft³ |
Concrete Densities
Aerated Concrete
Density Range: 300–1920 kg/m³
Density Range: 19–120 lb/ft³
Commonly Used Density: 600 kg/m³
Commonly Used Density: 37 lb/ft³
Air-entrained Concrete
Density Range: 1,800–2,400 kg/m³
Density Range: 112–150 lb/ft³
Commonly Used Density: 1,920 kg/m³
Commonly Used Density: 120 lb/ft³
Asphalt Concrete
Density Range: 2,200–2,400 kg/m³
Density Range: 137–150 lb/ft³
Commonly Used Density: 2,350 kg/m³
Commonly Used Density: 147 lb/ft³
Autoclaved Aerated Concrete
Density Range: 300–900 kg/m³
Density Range: 19–56 lb/ft³
Commonly Used Density: 600 kg/m³
Commonly Used Density: 37 lb/ft³
Cellular Concrete
Density Range: 300–1,800 kg/m³
Density Range: 19–112 lb/ft³
Commonly Used Density: 1,000 kg/m³
Commonly Used Density: 62 lb/ft³
Fiber-Reinforced Concrete (FRC)
Density Range: 2,300–2,500 kg/m³
Density Range: 144–156 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Foam Concrete
Density Range: 400–1,600 kg/m³
Density Range: 25–100 lb/ft³
Commonly Used Density: 1,200 kg/m³
Commonly Used Density: 75 lb/ft³
Glass Fiber Reinforced Concrete (GFRC)
Density Range: 1,800–2,100 kg/m³
Density Range: 112–131 lb/ft³
Commonly Used Density: 2,000 kg/m³
Commonly Used Density: 125 lb/ft³
Gypsum Concrete
Density Range: 1,400–1,900 kg/m³
Density Range: 87–119 lb/ft³
Commonly Used Density: 1,760 kg/m³
Commonly Used Density: 110 lb/ft³
High-Performance Concrete
Density Range: 2,400–2,600 kg/m³
Density Range: 150–162 lb/ft³
Commonly Used Density: 2,450 kg/m³
Commonly Used Density: 153 lb/ft³
High-Density Concrete
Density Range: 3,000–4,000 kg/m³
Density Range: 187–250 lb/ft³
Commonly Used Density: 3,500 kg/m³
Commonly Used Density: 218 lb/ft³
Lightweight Concrete
Density Range: 1,440–1,840 kg/m³
Density Range: 90–115 lb/ft³
Commonly Used Density: 1,800 kg/m³
Commonly Used Density: 112 lb/ft³
Lightweight Insulating Concrete
Density Range: 300–1,000 kg/m³
Density Range: 19–62 lb/ft³
Commonly Used Density: 480 kg/m³
Commonly Used Density: 30 lb/ft³
Low-Density Structural Concrete
Density Range: 1,400–1,840 kg/m³
Density Range: 87–115 lb/ft³
Commonly Used Density: 1,700 kg/m³
Commonly Used Density: 106 lb/ft³
Normal-Weight Concrete
Density Range: 2,200–2,500 kg/m³
Density Range: 137–156 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Pervious Concrete
Density Range: 1,600–2,000 kg/m³
Density Range: 100–125 lb/ft³
Commonly Used Density: 1,900 kg/m³
Commonly Used Density: 119 lb/ft³
Polymer Concrete
Density Range: 2,200–2,400 kg/m³
Density Range: 137–150 lb/ft³
Commonly Used Density: 2,300 kg/m³
Commonly Used Density: 144 lb/ft³
Pre-Stressed Concrete
Density Range: 2,400–2,500 kg/m³
Density Range: 150–156 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Precast Concrete
Density Range: 2,400–2,500 kg/m³
Density Range: 150–156 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Regular Concrete (Unreinforced)
Density Range: 2,200–2,500 kg/m³
Density Range: 137–156 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Roller-Compacted Concrete (RCC)
Density Range: 2,200–2,500 kg/m³
Density Range: 137–156 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Self-Consolidating Concrete (SCC)
Density Range: 2,000–2,400 kg/m³
Density Range: 125–150 lb/ft³
Commonly Used Density: 2,350 kg/m³
Commonly Used Density: 147 lb/ft³
Self-Leveling Concrete
Density Range: 1,840–2,300 kg/m³
Density Range: 115–144 lb/ft³
Commonly Used Density: 2,100 kg/m³
Commonly Used Density: 131 lb/ft³
Shotcrete
Density Range: 2,200–2,400 kg/m³
Density Range: 137–150 lb/ft³
Commonly Used Density: 2,300 kg/m³
Commonly Used Density: 144 lb/ft³
Stamped Concrete
Density Range: 2,300–2,400 kg/m³
Density Range: 144–150 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Structural Concrete (Reinforced)
Density Range: 2,400–2,500 kg/m³
Density Range: 150–156 lb/ft³
Commonly Used Density: 2,400 kg/m³
Commonly Used Density: 150 lb/ft³
Ultra-High-Performance Concrete
Density Range: 2,400–2,600 kg/m³
Density Range: 150–162 lb/ft³
Commonly Used Density: 2,500 kg/m³
Commonly Used Density: 156 lb/ft³
Vacuum Concrete
Density Range: 2,400–2,500 kg/m³
Density Range: 150–156 lb/ft³
Commonly Used Density: 2,450 kg/m³
Commonly Used Density: 153 lb/ft³
Types of Concrete
Aerated Concrete
Aerated concrete is a lightweight building material created by introducing air bubbles or gas into the concrete mix. It has good insulation properties, reduced density compared to conventional concrete, and is often used in non-structural or low-load applications.
Air-entrained Concrete
Air-entrained concrete includes small, intentionally formed air bubbles introduced through chemical admixtures or surfactants. These bubbles improve the concrete’s freeze-thaw resistance and overall durability, particularly in cold climates.
Asphalt Concrete
Asphalt concrete, also known simply as asphalt or blacktop, uses bitumen as the binder instead of Portland cement. While not strictly a “concrete” in the traditional cement-based sense, it is widely used in road surfacing and pavement applications.
Autoclaved Aerated Concrete
Autoclaved aerated concrete (AAC) is a type of aerated concrete cured in a pressurized steam chamber (autoclave). It is lightweight, provides excellent thermal insulation, and is often used in blocks or panels for construction of walls and partitions.
Cellular Concrete
Cellular concrete is produced by incorporating a pre-formed foam or generating gas in the mixture, creating a system of tiny air pockets. This lowers the density, improves thermal and acoustic insulation, and reduces structural loads.
Fiber-Reinforced Concrete (FRC)
Fiber-reinforced concrete contains fibrous materials such as steel, glass, synthetic, or natural fibers. These fibers enhance tensile strength, crack control, and overall toughness, making FRC more resistant to impact and fatigue stresses.
Foam Concrete
Foam concrete is made by adding a special foam to a cement-based slurry, creating a lightweight, insulating material. It is often used for void filling, roof insulation, and other applications where reduced density is beneficial.
Glass Fiber Reinforced Concrete (GFRC)
Glass fiber reinforced concrete (GFRC) incorporates alkali-resistant glass fibers into the mix. GFRC is known for its relatively high tensile strength, lighter weight, and ability to form thin, detailed elements commonly used in architectural panels and facades.
Gypsum Concrete
Gypsum concrete typically uses gypsum instead of Portland cement as the primary binder. It is commonly applied as an underlayment for flooring systems because it provides a smooth, fire-resistant surface with good sound-dampening properties.
High-Density Concrete
High-density concrete is made using heavy natural aggregates (such as barite or magnetite) or manufactured aggregates (like iron or steel punchings), resulting in significantly higher densities compared to normal-weight mixes. This type of concrete is often used for radiation shielding in nuclear and medical facilities because its greater mass effectively absorbs or blocks harmful radiation. It may also be used in special applications where higher mass or enhanced structural capacity is desired, such as counterweights, offshore structures, or certain heavy-duty foundations.
High-Performance Concrete
High-performance concrete is engineered to deliver improved performance in strength, durability, and/or workability. It typically involves lower water-to-cement ratios, specialty admixtures, and high-quality aggregates for enhanced characteristics.
High-Strength Concrete
High-strength concrete is designed to achieve compressive strengths significantly above standard mixes (often 6,000 psi and above). It is commonly used in high-rise buildings, bridges, and other structures where reducing cross-sectional sizes and weight is crucial.
Lightweight Concrete
Lightweight concrete uses lighter aggregates such as pumice, expanded clay, or shale to reduce density without compromising substantial structural strength. It is typically employed in multi-story buildings to reduce overall dead load and in precast products.
Lightweight Insulating Concrete
Lightweight insulating concrete incorporates either low-density aggregates or foaming agents, focusing more on insulation rather than structural strength. It is most often used in roof decks or fill applications where thermal insulation is a priority.
Low-Density Structural Concrete
Low-density structural concrete balances reduced weight with sufficient strength for certain load-bearing applications. It typically has a density less than normal-weight mixes but still meets structural requirements for some floors, decks, or walls.
Normal-Weight Concrete
Normal-weight concrete is the standard type of concrete with typical densities ranging from about 2,200 to 2,500 kg/m³ (137 to 156 lb/ft³). It uses conventional aggregates like crushed stone or gravel and is suitable for most general construction purposes. Same as Regular Concrete or Standard Concrete.
Pervious Concrete
Pervious (or porous) concrete allows water to drain through its interconnected voids. It is often used in parking lots, walkways, and stormwater management systems to reduce surface runoff and help replenish groundwater.
Polymer Concrete
Polymer concrete replaces some or all of the cement binder with polymer resins. The result is a material with high chemical resistance, low permeability, and high tensile/flexural strength, often used for repair works, industrial floors, or specialized structures.
Pre-Stressed Concrete
Pre-stressed concrete involves placing steel tendons under tension before (or sometimes after) the concrete is cast. When the tendons are released, compressive stress is induced in the concrete, allowing it to better handle tensile loads and span longer distances.
Precast Concrete
Precast concrete elements are cast and cured in controlled factory conditions, then transported to the construction site. This method allows for strict quality control, faster on-site assembly, and is commonly used for beams, columns, wall panels, and other structural elements. Coping stones are sometimes made from precast concrete.
Regular Concrete (Unreinforced)
Regular unreinforced concrete generally refers to standard mixes without additional reinforcement. While strong in compression, it has limited tensile strength and is typically used in lower-load or non-structural applications unless paired with reinforcement. Same as Normal-Weight Concrete.
Roller-Compacted Concrete (RCC)
Roller-compacted concrete is a stiff, low-slump mix placed using asphalt paving equipment and compacted with rollers. It has minimal shrinkage and is used for dam construction, heavy-duty pavements, and areas where a fast, economical installation is desired.
Self-Consolidating Concrete (SCC)
Self-consolidating concrete is highly flowable, requiring minimal or no mechanical vibration. It can fill complex formwork and pass through dense reinforcement without segregation, improving surface finish and reducing labor costs.
Self-Leveling Concrete
Self-leveling concrete is a polymer-modified, flowable mix that spreads easily, creating a flat, smooth surface with minimal labor. It is often used as an underlayment for flooring installations in commercial or residential projects.
Shotcrete
Shotcrete is concrete or mortar conveyed through a hose and pneumatically projected at high velocity onto a surface. This process allows flexible placement on irregular surfaces and is often used for tunneling, swimming pools, and repair works.
Stamped Concrete
Stamped concrete is regular concrete that is patterned, embossed, or textured to resemble brick, slate, stone, or wood. Often used for decorative patios, driveways, and walkways, it provides the aesthetic of expensive materials at a lower cost.
Structural Concrete (Reinforced)
Structural reinforced concrete contains steel reinforcing bars or mesh to carry tensile and shear stresses. It is the most common type of concrete used in beams, columns, slabs, and foundations where load-bearing capacity is required.
Ultra-High-Performance Concrete
Ultra-high-performance concrete (UHPC) is a class of advanced concrete with exceptionally high strength, ductility, and durability. It may include steel fibers, silica fume, and other fine aggregates to achieve compressive strengths beyond 150 MPa (over 21,700 psi).
Vacuum Concrete
Vacuum concrete is produced by extracting water from the freshly placed mix using a vacuum process. This lowers the water-cement ratio in the surface region, leading to increased density and improved strength.
References for Concrete Density Information
Below is a list of reputable sources for concrete density information. These sources provide standards, specifications, technical data, and in-depth explanations regarding densities of a wide variety of concretes.
Most of these sources are institutions, associations, agencies, or established companies that publish technical data and standards related to concrete. A couple of books are included as well.
- American Concrete Institute (ACI)
- Website
- ACI develops and disseminates the most widely recognized technical standards and guidelines in concrete design, construction, and materials.
- ASTM International
- Website
- Publishes standards such as ASTM C138 (Density or Unit Weight of Fresh Concrete) and ASTM C642 (Density, Absorption, and Voids in Hardened Concrete).
- Portland Cement Association (PCA)
- Website
- Represents America’s cement manufacturers. Known for their publication Design and Control of Concrete Mixtures, which contains thorough data on densities and mix designs.
- National Ready Mixed Concrete Association (NRMCA)
- Website
- Provides resources on ready mixed concrete including typical densities for normal-weight, lightweight, and other specialty concretes.
- Federal Highway Administration (FHWA)
- Website
- Offers technical advisories, research publications, and guidelines for highway and bridge construction, frequently referencing concrete densities (e.g., for bridge deck overlays).
- United States Army Corps of Engineers (USACE)
- Publications Site
- Publishes technical manuals (e.g., EM 1110-2-2104 on Roller-Compacted Concrete) that include density data for various concrete applications.
- CEMEX
- Website
- A global building materials company often publishes technical data sheets for different concrete mixes, including densities.
- Holcim
- Website
- Another major cement and concrete producer that provides data on normal-weight and specialty concretes, often including density ranges.
- Design and Control of Concrete Mixtures (Book)
- Author: Portland Cement Association (PCA)
- A classic reference text that covers concrete properties, mix design, and typical densities for various types of concrete.
- Amazon Link
- Concrete: Microstructure, Properties, and Materials (Book)
- Authors: P.K. Mehta and Paulo J.M. Monteiro
- A comprehensive textbook widely used in academia and industry, covering concrete composition, properties (including density), and performance.
- Amazon Link
About the Author
Jack Gray spent 20 years as a principal roof consultant with the Moriarty Corporation, an award-winning building enclosure consultant firm founded in 1967. Mr. Gray has worked in the roofing industry for over 25 years, with training and practical experience in roof installation, roof inspection, roof safety, roof condition assessment, construction estimating, roof design & specification, quality assurance, roof maintenance & repair, and roof asset management. He was awarded the Registered Roof Observer (RRO) professional credential in 2009. He also served as an infantry paratrooper in the 82nd Airborne Division and has a B.A. from Cornell University.