All tools in one place

Calculate stress area and preload from nominal diameter, pitch, and grade.

Fast unit conversions for length, force, pressure, and energy.

Validate variables, units, and formulas in one screen.

Estimate heat flow through a single layer with manual inputs.

Generate an F-x chart from spring constant and displacement.

Compute tensile stress from force and cross-section area.

Bending stress and max deflection for a simply supported beam.

Quick access to metric and imperial bolt sizes.