Free calculators, lookups and utilities for IT buyers.
Convert a feeder, service or breaker current to kVA on single-phase or three-phase power, to compare it with a UPS, generator or transformer rating.
Open toolConvert the per-phase amps a three-phase PDU or panel shows into kilowatts of real power, or a single-phase reading into kW, at 208, 400, 415 or 480 V.
Open toolTurn a current reading from a PDU, clamp meter or device label into watts, on single-phase or three-phase circuits, with power factor and apparent power in VA.
Open toolConvert an air conditioner or computer room cooling rating in BTU/hr to watts, kW and tons, to see how much IT load that cooling capacity matches.
Open toolFind the full-load current of a transformer, UPS or generator from its kVA rating, per phase on three-phase or on single-phase, at 208, 240, 400, 415 or 480 V.
Open toolConvert a kVA rating from a UPS, generator or transformer nameplate to the real power in kW it can carry, at 0.8, 0.9, 0.95 or any other power factor.
Open toolSize the circuit for a rack: convert a load in kilowatts to amps per phase on single-phase or three-phase power, with power factor and the breaker rating needed.
Open toolConvert a load in kW to the kVA a UPS, generator or transformer must supply, at the power factor you choose, with the reactive power in kVAR.
Open toolConvert watts to amps for single-phase and three-phase power at 120, 208, 230, 240, 400, 415 and 480 V, with power factor and the 80% circuit check.
Open toolConvert the watts a server, rack or IT room draws into the heat it gives off, in BTU per hour and tons of cooling, using 1 W = 3.41214 BTU/hr.
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