VA to kW Calculator

Convert volt-amps (VA) to kilowatts (kW) using power factor. Find real power from VA-rated equipment.

ByPRIYA SHARMAโ€ขUpdated April 20, 2026
|
Reviewed byDR. RAJIV NAIR
|
Fact checked byNEHA KAPOOR
VA

REAL POWER

21.25 kW


IN WATTS

21,250 W

FORMULA

kW = (VA ร— PF)/1000

๐Ÿ’ก How to Convert VA to kW

Formula

kW = (VA ร— PF) / 1,000

Example: 25,000 VA at PF=0.85 โ†’ kW = (25,000 ร— 0.85) / 1,000 = 21.25 kW

A UPS rated at 3,000 VA with PF=0.9 delivers 2,700 watts (2.7 kW) of real power.

3,000 VA UPS ร— 0.9 PF = 2,700W real power. Always check the UPS power factor.