Old AJs Electrical Software
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Old AJ's Electrical Software

Designed by electricians...for electricians!
Electrical Software Products
Electrical Power
Voltage Drop
Wire Size
Ground wire
Conduit
Ohms Law
Conduit & Wire Size
3 phase motor
Motor current
Pressure converter

KVA calculator

Single phase
Three phase
Volts:
Amps:
Ohms Law
Voltage = Current x Resistance
E = I x R
Current = Voltage / Resistance
I = E / R
Resistance = Voltage / Current
R = E / I
Power = Voltage x Current
W = E x I
Power = Voltage² / Resistance
W = E² / R
Power = Current² x Resistance
W = I² x R
 
 
KVA & Power Formulas
Power Formula-DC KVA | Power Formula-Single Phase KVA | Power Formula-3 Phase
Power(watts) = Voltage x Current
W = E x I
Power(watts) = Voltage² / Resistance
W = E² / R
Power(watts) = Current² x Resistance
W = I² x R
KW(kilowatts) = W / 1000
mw(milliwatts) = W x 1000 		VA = Voltage x Current
VA = E x I
Power(watts) = Voltage x Current x Power Factor
W = E x I x PF
KVA = VA / 1000
KVA = E x I / 1000
KW(kilowatts) = Voltage x Current x Power Factor / 1000
KW = E x I x PF / 1000 		VA = voltage x Current x 1.73
VA = E x I x 1.73
Power(watts) = Voltage x Current x 1.73 x Power Factor
W = E x I x 1.73 x PF
KVA = VA/1000
KVA = E x I x 1.73 / 1000
KW(kilowatts) = Voltage x Current x 1.73 x Power Factor / 1000
KW = E x I x 1.73 x PF / 1000