The Toolbox

Calculators

Technical calculators organized by discipline. Select a category to get started.

RF, Wireless & Radar

VSWR, coax loss, ERP, path loss, link budget, FM deviation, noise figure, radar range, and PRF/PRI.

Ohm's Law, voltage divider, resistor color code, wire gauge, power factor, time constant, resonant frequency, and capacitor charge/discharge.

Antenna length, HAM antenna, drone flight time, rocket motor classification, and battery runtime.

Optical link budget, fiber loss, and connector/splice budget.

Torque unit converter with aviation fastener reference, temperature converter with resistance coefficient calculator.