Amps to VAR, kVAR and MVAR Calculator:
Enter the current in amps, the voltage in volts and the power factor, and choose the Value you need to find VAR or kVAR or MVAR, then press the calculate button to get the results.
Convert Amps to VAR
Electrical current is measured by using Amps unit and reactive power is measured by VAR unit. Hence for calculating reactive power in VAR from amps, the reactive power Q(VAR) in VAR is equal to the product of line current I(A) in Amps times of line voltage V(V) and sine of power angle sin(φ).
Amps to VAR Calculation formula,
Q(VAR) = V(V) x I(A) x sin(φ)
For three-phase with line voltage V(L-V),
Q(VAR) = 1.732 x V(L-V) x I(A) x sin(φ)
For three-phase with phase voltage V(P-V),
Q(VAR) = 3 x V(P-V) x I(A) x sin(φ)
Convert Amps to kVAR:
Reactive power Q(kVAR) in Kilo Volt Amp reactive is equal to the 0.001 times of line current I(A) in amps and the line voltage V(V) (For three-phase, you have to consider 1.732 times of the Line voltage) and the sine of power angle.
Power angle can be calculated from the power factor by using cos-1(pf)
Amps to kVAR calculation formula,
Q(kVAR) = V(V) x I(A) x sin(φ) / 1000
For three-phase with line voltage V(L-V),
Q(kVAR) = 1.732 x V(L-V) x I(A) x sin(φ) / 1000
For three-phase with phase voltage V(P-V),
Q(kVAR) = 3 x V(P-V) x I(A) x sin(φ) / 1000
Convert Amps to MVAR:
MVAR is the very largest unit of reactive power and which is used in transmission line reactive power management. The mega volt-ampere reactive is equal to line current I(A) in Amps times of voltage V(V) in volts and the sine of power angle(φ) divided by the 1,000,000. Hence the formula can be written as,
Amps to MVAR calculation formula,
Q(MVAR) = V(V) x I(A) x sin(φ) / 1000000
For three-phase with line voltage V(L-V),
Q(MVAR) = 1.732x V(L-V) x I(A) x sin(φ) / 1000000
For three-phase with phase voltage V(P-V),
Q(MVAR) = 3 x V(P-V) x I(A) x sin(φ) / 1000000