Physics

Calculate fan airflow, pressure, shaft power, and required RPM from a matched baseline point, with optional wheel diameter and motor checks.

Calculate steady-state junction temperature, thermal margin, and the heat-sink resistance needed for a power device.

Calculate first-pass microstrip patch width and length from frequency, substrate Dk, and layer height, with results in mm, mil, and inches.

Calculate minimum optical attenuation for Rx overload and check a fixed attenuator against overload and sensitivity limits.

Calculate net WDM throughput per direction from active wavelengths and rate per channel, with optional fiber-pair scaling and slot checks.

Estimate DWDM EDFA cascade OSNR, margin, stage count, and equal amplifier spacing from route and optical inputs.

Calculate round bass reflex port length or estimate box tuning from enclosure volume, port size, port count, and tuning target.

Calculate a starting subwoofer delay, crossover phase gap, and AVR distance gap from main and subwoofer distances.

Estimate composite wall STC from wall, window, door, vent, and opening areas and ratings. See which component drives modeled sound transmission.

Calculate rectangular room modes, first axial frequencies, close mode stacks, and a full standing-wave list in Hz.