Quick answers for the garage, workshop and workbench.
Estimate elastic deflection for common beam and load cases.
Calculate theoretical antenna lengths from RF frequency.
Convert RF power between dBm, milliwatts, watts and kilowatts.
Compare wheel widths, offsets and spacer effects.
Compare tyre diameter, sidewall and speedometer change.
Relate road speed, engine RPM and drivetrain ratios.
Estimate voltage loss across cable runs.
Calculate voltage, current, resistance and power.
Estimate useful runtime from capacity and load.
Convert frequency, wavelength and common wave fractions.
Calculate extension and retraction force from bore and pressure.
Calculate belt-drive speed ratios and required pulley sizes.
Relate pipe diameter, volumetric flow and fluid velocity.
Estimate stock weight from material and dimensions.
Generate coordinates for evenly spaced holes on a PCD.
Find tapping drills for metric, UNC and UNF threads.
Estimate filament, energy and machine costs.
Convert common workshop and engineering units.