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kW to kVA Converter

Convert real power (kW) to apparent power (kVA). This requires knowing the power factor of the load or system.

Kilowatt ↔ Kilovolt-Ampere

kW
kVA

Calculation Formula

100 kW ÷ 0.8 PF = 125 kVA

Worked Example

Convert 80 kW to kVA with a Power Factor of 0.8: 80 kW ÷ 0.8 = 100 kVA

Kilowatt to Kilovolt-Ampere Table

kWkVA (PF=0.8)kVA (PF=0.9)kVA (PF=1.0)
10 kW12.5 kVA11.111 kVA10 kVA
20 kW25 kVA22.222 kVA20 kVA
50 kW62.5 kVA55.556 kVA50 kVA
80 kW100 kVA88.889 kVA80 kVA
100 kW125 kVA111.11 kVA100 kVA
200 kW250 kVA222.22 kVA200 kVA
400 kW500 kVA444.44 kVA400 kVA

Understanding the Conversion

Generators and transformers are usually rated in kVA. To size a generator for a known kW load, you must divide the kW by the power factor to find the required kVA capacity.

Size your backup power system.

Use these converted ratings to determine exactly what size generator or battery bank you need.