Example engineering calculations
Worked, unit-aware calculation worksheets across structural, mechanical, electrical and more. Open any example into your own workspace to edit and reuse. New to Calculeaf? Start with your first worksheet or the examples guide.
34 examples found
ASME B31.8 Pipe Wall Thickness Calculation
Calculating the minimum wall thickness of a pipe in accordance with ASME B31.8
Hydrostatic Force on a Retaining Wall
Resultant hydrostatic force and its line of action on a vertical wall retaining water.
Concrete Cylinder Compressive Stress
Compressive stress in a standard concrete test cylinder under load.
Rebar Tension Capacity
Yield tension capacity of reinforcing steel from its area and yield strength.
Shear Reinforcement Capacity
Shear carried by vertical stirrups in a reinforced-concrete beam.
Modular Ratio
Ratio of steel to concrete elastic moduli used in transformed-section analysis.
Road Gradient
Gradient (slope) of a road or pipe as a ratio of rise to run.
Earthwork Volume (Average End Area)
Earthwork volume between two cross-sections by the average-end-area method.
Stadia Distance
Horizontal distance from a stadia (tacheometric) staff reading.
Horizontal Curve Length
Arc length of a horizontal road or railway curve.
Tank Fill Time
Time to fill a tank from its volume and the inflow rate.
Water–Cement Ratio
Water–cement ratio of a concrete mix from the water and cement masses.
Brick Quantity for a Wall
Number of bricks needed to build a wall from the wall and brick face areas.
Rational Method Peak Runoff
Peak stormwater runoff from a catchment by the Rational Method.
Stopping Sight Distance
Total distance a vehicle travels while the driver reacts and then brakes to a stop.
Superelevation Rate for a Horizontal Curve
Banking rate needed on a horizontal curve so side friction alone does not have to resist all the cornering force.
Vertical Curve Length from a Design K-Value
Minimum parabolic vertical curve length from the AASHTO K-value method.
Pavement Structural Number (AASHTO)
Composite structural number of a flexible pavement section from layer coefficients and thicknesses.
Traffic Stream Density from Flow and Speed
Vehicle density on a roadway from the fundamental traffic-flow relationship k = q/v.
Highway Lane Capacity at a Target v/c Ratio
Sustainable lane volume corresponding to a target volume-to-capacity ratio.
Parking Lot Stall Count from Available Area
Number of parking stalls a paved area can accommodate given an area-per-stall allowance.
Takeoff Ground Roll Distance (Simplified)
Runway distance needed to accelerate an aircraft from rest to takeoff speed.
Culvert Discharge Capacity (Manning Conveyance)
Culvert flow capacity from its hydraulic conveyance factor and the channel slope.
Roadway Cross-Slope Edge Drop
Vertical drop across a traffic lane created by its cross slope.