Concrete Footing Calculator

Online footing calculator for concrete pads, piles, slabs, and footings

About the Concrete Footing Calculator

This concrete footing design calculator helps engineers design foundations for footings, combined footings, concrete piles, concrete pads, and more. The software includes calculations for overturning, sliding, structural utility ratios (one-way shear, two-way shear, flexure X, and flexure Y), and more - as per AS 3600 and ACI 318. The free tool will also calculate the volume of concrete in your design.

This online footing calculator is a simplified version of our Foundation/Footings Design Software, which is able to handle more loads and foundation types, including Combined footings and non-symmetric isolated footings. Simply start by selecting your design code, and begin with adding or editing the dimensions of your footing via the width, height, and depth parameters. The figure will automatically update itself.

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The SkyCiv Concrete Footing Calculator Can Be Used For:

Concrete footing calculator

This easy-to-use concrete foundation calculator will help engineers calculate a number of important results for isolated and combined footings. These include overturning, dimension requirements, sliding, soil pressure, one way and two way shear and flexure capacity ratios. This gives the engineer a good indication of whether the foundation will pass or fail. The SkyCiv Concrete Footing Calculator is equipped with interactive graphics, multiple load types, in-built reinforcement and powerful calculation reporting. Some of these features are locked out of the free version, but feel free to check out our Foundation Design Software page for more information on the full versions features and capabilities.

Concrete pile calculator

Our footing design calculator can also calculate concrete piles and pile cap foundations. This can be designed under the context of ACI 318 or AS 3600 (and AS 2159 for soil). This concrete pile software will display results for axial flexure, end bearing, flexure*, lateral* and shear* checks. Note: any results with an asterisk (*) are available under the paid version only.

Concrete pad calculator

Along with the overturning, sliding and concrete design utility ratios, The SkyCiv footing design calculator will also calculate the volume of concrete in your pad footing. The result will return the cubic meters of concrete for metric systems and cubic feet for imperial unit systems. This calculator estimates the amount of concrete needed for your isolated footings, for quick back of the envelope calculations and estimates.

Foundation design and analysis

Further foundation design can be calculated from our full version Foundation Design Software. This software will allow the calculation of ACI 318 and AS 3600 concrete footings (also known as concrete pad footings) with full loading capabilities and results. This includes a detailed report of the calculations and additional design features. This Foundation Design Software can also be used to calculate and design concrete piles as per AS 3600 (AS 2159) and ACI 318 with multiple soil layers, additional loading capabilities and no restrictions.

About SkyCiv

SkyCiv offers a wide range of cloud structural analysis and design Software for engineers. As a constantly evolving tech company, we're committed to innovating and challenging existing workflows to save engineers time in their work processes and designs.

How to Use SkyCiv Concrete Footing Calculator

Step 1: Select Design Code

First select the relevant concrete design code you would like to design your footing with. Based on this selection, SkyCiv's Concrete Footing Calculator will help size your footing to meet relevant regional design considerations.

Step 2: Input Relevant Geometry, Soil, and Material Data

The next step is to input the relevant information concerning the geometry of your footing, soil conditions, as well as the concrete, soil, and steel material properties. This will help determine the overall strength of the footing as well as the weight, loading, and bearing of the surrounding soil.

Step 3: Add Loads and Top/Bottom Reinforcement

Next, you can will input the loads your footing will be resisting (e.g. Dead, Live, Wind, Snow, etc.). SkyCiv's Free Concrete Footing Calculator also allows you to input custom Service loads as desired. Finally, you will add the size, spacing, and location (top or bottom) of reinforcement in the footing and column.

Step 4: Finalize with Safety Factor, Development Length, and Cover Values

Finally, to complete you design, choose your required Factors of Safety, Development Length, and height of Concrete Cover. This should complete all the inputs needed. After this, you can press the blue "Run Your Design Checks" button to complete the analysis and navigate to the "Results" table to review your design results.


How can I calculate a concrete footing?

The sizing of concrete footings is based on project requirements, site details, and safety considerations. Use the SkyCiv Free Concrete Calculator to calculate concrete footing dimensions based on loadings, soil properties, and safety factors. Input your project details, and the calculator will provide you with the required dimensions for a structurally sound footing.

What is a concrete pile?

A concrete pile is a structural element used to support foundations, transferring loads from the structure to deeper, more stable soil layers. Learn more about concrete piles and their applications in foundation engineering by visiting SkyCiv's article on Concrete Piles on our documentation site.

How can I design a footing foundation?

SkyCiv provides detailed guidance on designing footing foundations. Utilize the SkyCiv Free Concrete Calculator and refer to the comprehensive documentation on Isolated Footings Verification for step-by-step instructions on designing a robust and safe footing foundation.

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Engineering professional?

If you are an engineering professional, you might benefit more by using our cloud based 3D Structural Analysis Software beyond this calculator. This software includes integrated design modules such as AISC, ACI, AS, Eurocode and CSA.
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