Calculators
Noise Exposure Guide — dBA, Exchange Rate, OSHA PEL & Hearing Protection
Shop noise is cumulative. Grinders, plasma cutters, and air tools stack dose even when no single machine “feels that loud.”...
Electrical
Calculators
Calculators
Arc Flash Boundary Guide — Approach Limits & How Calculator Results Apply
The arc flash boundary is the distance from exposed energized parts where incident energy drops to 1.2 cal/cm² — the...
Calculators
kW, kVA & Amps Guide — Real Power, Apparent Power & Power Factor
Generators are sold in kVA. Heaters and motors talk in kW. Breakers and wire care about amps. This guide ties...
Calculators
Extension Cord Voltage Drop Guide — AWG, Round-Trip & Welder Cords
Branch-circuit voltage drop and extension-cord voltage drop are related but not the same job. Cord runs are temporary, round-trip, and...
Calculators
Generator Fuel Consumption & Runtime Guide
Sizing answers “how many kilowatts?” Runtime answers “how long until the tank is empty?” Fuel burn changes with load —...
Calculators
Generator Fuel Consumption & Runtime Calculator
Estimate generator fuel burn and how long your tank will last at a given load. Complements generator-sizing-calculator (capacity) with runtime/fuel...
Calculators
kW to kVA to Amps Calculator
Convert between kilowatts (kW), kilovolt-amperes (kVA), and amps for single-phase and three-phase power. Free electrical converter for generators, motors, and...
Calculators
Extension Cord Voltage Drop Calculator
Calculate extension cord voltage drop and recommended AWG gauge for tools, welders, and jobsite runs. Distinct from the voltage-drop-calculator (branch...
Calculators
Equipment Grounding Conductor Calculator — NEC Table 250.122
Size the equipment grounding conductor (EGC) per NEC Table 250.122 from overcurrent device rating. Copper or aluminum — not service...
Calculators
Short Circuit / Fault Current Calculator — Available Fault & AIC Check
Free short circuit current calculator — point-to-point f-factor method from transformer kVA, %Z, and feeder length. Compare available fault current...