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Engineering Calculators

Structural, electrical and mechanical engineering calculators for beams, pipes, power, solar and more.

Battery Backup Calculator

Free online Battery Backup Calculator for Engineering Calculators. Enter Load, Backup Hours, Battery Voltage, Depth of Discharge to get an instant, transparent result you can trust.

Beam Load Calculator

Calculate bending moment, shear force and deflection for a simply-supported beam.

Cable Size Calculator

Free online Cable Size Calculator for Engineering Calculators. Enter Load Current, Cable Length, System Voltage, Max Voltage Drop to get an instant, transparent result you can trust.

Column Load Calculator

Calculate the axial load capacity of a reinforced concrete column.

Footing Calculator

Size an isolated square footing based on column load and soil bearing capacity.

Horsepower Calculator

Free online Horsepower Calculator for Engineering Calculators. Enter Torque, RPM to get an instant, transparent result you can trust.

Kva Calculator

Free online Kva Calculator for Engineering Calculators. Enter Real Power, Power Factor to get an instant, transparent result you can trust.

Ohms Law Calculator

Free online Ohms Law Calculator for Engineering Calculators. Enter Solve For, Voltage (V), Current (A), Resistance (Ω), Power (W) to get an instant, transparent result you can trust.

Pipe Flow Calculator

Free online Pipe Flow Calculator for Engineering Calculators. Enter Diameter, Flow Velocity to get an instant, transparent result you can trust.

Pipe Volume Calculator

Free online Pipe Volume Calculator for Engineering Calculators. Enter Inner Diameter, Length to get an instant, transparent result you can trust.

Pressure Drop Calculator

Free online Pressure Drop Calculator for Engineering Calculators. Enter Friction Factor f, Pipe Length, Diameter, Velocity, Fluid Density to get an instant, transparent result you can trust.

Rpm Calculator

Free online Rpm Calculator for Engineering Calculators. Enter Linear Speed, Wheel/Pulley Diameter to get an instant, transparent result you can trust.
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