Copy and paste the HTML below to add the Electrical Ground Resistance Calculator to your website.
Compute material resistivity from measured resistance, length, and cross-sectional area, or solve for any variable in the relation R = ρ L / A.
Estimate how a material's electrical resistivity changes with temperature using a linear temperature coefficient.
Estimate lightning rod coverage, conductor lengths, project cost, and insurance payback for a residential lightning protection system.
Compute equivalent resistance for up to five resistors wired in series or parallel and estimate current for an optional supply voltage.
Compute graphene sheet resistance and conductivity from carrier density and mobility, with temperature scaling.
Estimate the likelihood of antimicrobial resistance spreading in a community based on antibiotic usage, compliance, infection control, contact rates, and baseline prevalence.