Free Online Concrete Footing Calculator

This easy-to-use concrete foundation calculator helps engineers design and check isolated and strip footings. It provides key results including footing dimensions, soil pressure, overturning, sliding, one-way shear, two-way (punching) shear, and flexural capacity ratios, giving engineers a clear indication of whether a foundation meets the required design checks.

The SkyCiv Concrete Footing Calculator also features interactive 3D graphics, multiple load types, reinforcement design, and detailed calculation reports. Some advanced features are limited in the free version. For additional foundation types, loading options, design capabilities, and full reporting features, visit our Foundation Design Software page

Our footing design calculator also supports the design and analysis of concrete piles. Concrete pile designs can be performed in accordance with American, Australian, and European standards. The calculator provides key results for axial and flexural capacity, end-bearing capacity, and shear checks, with additional checks for lateral capacity and flexure available in the paid version.

Our strip footing calculator supports the design and analysis of concrete strip footings, also known as wall footings, for supporting masonry and load-bearing walls. The calculator performs concrete strip footing design in accordance with American and Australian standards and design requirements. It includes stability checks for soil bearing pressure, eccentricity, and sliding, along with strength checks for shear, flexure, and reinforcement. The strip footing calculator also includes detailing checks for footing geometry and reinforcement layout, and can model masonry walls and mass concrete footings for a range of wall footing and foundation design applications.

SkyCiv Concrete Footing Calculator uses Finite Element Analysis (FEA) for advanced footing design, calculating the soil pressure distribution across the foundation based on loading, geometry, footing deformation, and soil contact. The resulting soil pressures are used in Wood-Armer analysis to determine critical flexural moments and reinforcement requirements, providing a more detailed approach to concrete footing and foundation design.

Start by selecting the applicable concrete design code for your project. SkyCiv’s Concrete Footing Calculator will apply the relevant regional design provisions based on your selection. Then, choose the foundation type you want to design.

Enter the required footing geometry, soil conditions, and material properties, including concrete, reinforcement steel, and soil parameters. These inputs are used to determine the footing’s structural capacity, self-weight, soil bearing pressure, and overall design performance.

Enter the loads acting on the footing, such as dead, live, wind, and snow loads. You can also define custom ultimate and service load cases to suit your project requirements.

Define the footing reinforcement by specifying the bar size, spacing, and concrete cover in both directions. You can also add reinforcement hooks at the ends of the bars for additional anchorage.

Finalize your model by specifying the required design factors in accordance with the selected design code. Adjust the available solver settings to customize the analysis and design approach and obtain the desired results.