Civil Engineering Calculators

Rafter Length

This calculator helps you find the length of a rafter using either the roof angle or the pitch. Just input the vertical rise, roof run, and angle or pitch value to compute the accurate rafter length for roof framing — ideal for carpenters, roofers, and structural engineers.

Cement and Sand for Plastering

Quickly estimate the quantity of cement and sand needed for plastering any wall or surface. Input area, thickness, and mix ratio for instant results.

Number of Paving Stones

This calculator helps estimate the number of paving stones needed to cover a defined area, with an optional 10% allowance for wastage. By entering the total surface dimensions and the size of a single paving stone, you get both the required quantity and a recommended amount to purchase.

Maximum Floor Live Load Capacity

This calculator estimates the maximum live load a floor can support without excessive deflection or failure. It is based on span, stiffness, modulus of elasticity, and a correction factor. Engineers and architects use it to assess floor safety under dynamic loads like people, furniture, or equipment.

Floor Space Index (FSI)

This calculator helps you determine the Floor Space Index (FSI), also known as the Floor Area Ratio (FAR). FSI is the ratio of a building's total covered area to the plot (land) area. It’s an essential tool for architects, civil engineers, and planners working on zoning, construction limits, and urban development regulations.

Concrete Footing/Slab Pours

This calculator helps determine how much concrete is required for a footing or slab pour based on diameter, width, and depth. It converts all measurements to cubic yards, giving accurate estimations for small or large pours in foundation or floor construction.

Floor Tile Estimator

This calculator helps you determine the exact number of tiles required to cover both the floor and skirting (wall border) of a room. By inputting the room dimensions, tile size, skirting height, and tile wastage percentage, you can plan purchases accurately and avoid material shortages or waste.

Concrete Ingredients

This calculator estimates the volume of each ingredient—cement, sand, and aggregate—based on the concrete mix ratio and the total required volume. Just input the structure’s dimensions and your preferred mix proportion to get accurate material quantities.

Concrete Mix Ratio

This calculator estimates the required quantities of cement, sharp sand, gravel, and water for a concrete mix based on the volume of the slab or structure. Just enter the width, height, and depth to get instant material requirements using standard mix ratio coefficients.

Curb and Gutter Barrier Concrete Yardage

This calculator estimates the volume of concrete in cubic yards required for a curb and gutter barrier. By entering the length, face width, gutter width, and curb height (in inches), you can accurately determine how much concrete is needed for construction.

Concrete Wall

This calculator estimates the concrete volume in cubic yards required to build a wall. Just enter the wall’s length, height, and thickness (in inches), and get an accurate concrete yardage — perfect for construction planning and concrete ordering.

Concrete Yardage

This calculator estimates the total concrete yardage needed for a pour, using dimensions in feet and inches. Enter length and width in feet, height in inches — and instantly get the concrete volume in cubic yards. Ideal for slabs, footings, walls, or general pours.

Concrete footing yard

Concrete Stairs

Use this calculator to estimate the volume of concrete required for building stairs. By entering the number of steps, rise, tread, and width, you can quickly determine how much concrete is needed for casting staircases, helping with both planning and budgeting.

Elevation Point of Vertical Curve

This calculator determines the elevation at any point along a vertical parabolic curve. By entering the elevation of the PVC, the initial and final grades, the distance xx from the PVC, and the curve length, you can precisely compute the elevation at that location. Ideal for roadway and railway design.

Earthwork Cross Section Volume

This calculator estimates the volume of earthwork based on the average of two cross-sectional areas and the length between them. It’s commonly used in civil engineering and roadwork projects to determine how much soil needs to be cut or filled.

Earthwork Cross Sectional Area

This calculator determines the cross-sectional area of land used for earthwork by inputting the X and Y coordinates of each point outlining the cross-section. It is useful for surveyors and civil engineers working on excavation, road construction, or grading.

Cubic Yards of Triangular Stepping Stones

This calculator estimates the volume in cubic yards of a triangular-shaped stepping stone using its base, height, and thickness. Enter your dimensions in inches to get an accurate concrete requirement — great for landscaping paths with geometric patterns.

Cubic Yards of Rectangular Stepping Stones

Use this calculator to determine the volume in cubic yards of a rectangular stepping stone. Enter the length, breadth, and height (in inches) to calculate the volume of concrete needed for a single unit — ideal for pathways, patios, and landscaping elements.

Cubic Yards of Circular Stepping Stones

This calculator estimates the volume in cubic yards of a circular stepping stone based on its radius and height. Use it to determine the concrete needed per unit or for multiple pieces — ideal for landscape designers and DIYers working with round pavers.

Concrete Volume

This calculator helps you estimate the total volume of concrete needed to fill cylindrical forms such as piers, columns, or pipes. Input the radius, depth, and quantity to calculate the total concrete in cubic yards.

Concrete Slab Pour Volume

This calculator estimates the volume of concrete needed to pour a rectangular slab. Just enter the width, length, and thickness to get the required amount of concrete in cubic feet or meters, depending on units used.

Concrete Slab Maximum Wall Load

This calculator determines the maximum load a concrete slab can support when subjected to wall loads. Based on compressive strength, slab thickness, and a stiffness coefficient, it is essential for ensuring safe and efficient structural designs in residential, commercial, or industrial projects.

Concrete Slab Maximum Length

This calculator determines the maximum allowable length of a concrete slab based on the reinforcement ratio, steel stress, and slab spacing. It helps engineers and contractors design slabs that are structurally sound and resistant to cracking or failure.

Concrete Footing Volume

This calculator helps determine the volume of concrete needed for rectangular footings, including cases with inner voids. Simply enter the outer and inner dimensions along with the thickness to get the total concrete volume required for the footer.

Concrete Column Fill

Use this calculator to estimate the volume of concrete required to fill a round column. Enter the diameter and height to compute the result in cubic yards. This is helpful for contractors and civil engineers when planning column footings or vertical structures.

Cantilever Beam with Uniform Load

This calculator estimates the deflection of a cantilever beam with a uniform load distribution. Includes real-time stiffness and material-based analysis.

Cantilever Beam with Load at Free End

Easily determine deflection and slope when a cantilever beam is loaded at its free end. Common in balcony design and mechanical arm analysis.

Cantilever Beam with Load at Any Point

Find the slope and deflection of a cantilever beam loaded at an arbitrary point. Useful for irregular load cases in real-world structural applications.

Cantilever Beam with Distributed Load

This tool calculates the slope and deflection at any point on a cantilever beam with a uniformly distributed load. Ideal for structural engineers designing load-bearing elements.

Cantilever Beam with Couple Moment

Calculate the slope at the free end and deflection at any section of a cantilever beam subjected to a couple moment. Ideal for structural analysis and educational purposes in civil and mechanical engineering.

Cantilever Beam Stiffness

This calculator helps determine the stiffness of a cantilever beam based on its material and geometric properties. It is useful for structural engineers, civil engineers, and students to evaluate how much resistance a beam offers against deflection when a load is applied at its free end.

Number of Concrete Blocks

This calculator helps you estimate the number of concrete blocks required to build a wall or surface. Just enter the total wall dimensions and the size of a single block — the tool does the rest. Ideal for builders, contractors, and DIYers during project planning.