Generator load
- Load
- 100 kW
- PF
- 0.80
- Required kVA
- 125 kVA
- Recommended
- 150 kVA
Reserve 20% for startup current and future expansion.
kW to kVA Calculator
Free kW to kVA converter: enter kW and power factor in the calculator below for generators, UPS, transformers, and single- or three-phase loads.
Learn before calculating
Power factor links real kW to apparent kVA. Read the cluster authority guide for formulas, typical industrial values, and correction methods before you size equipment.
Calculator
Quick: value and PF presets. Advanced: conversion direction and PF band refine kVA for mixed motor / IT loads.
Inputs (kW, PF, and direction)
Used by engineers for electrical load calculation and equipment sizing. A kW to kVA conversion chart at 0.85 PF is below the calculator; expand View full reference table to filter all checkpoints and open prefilled links here.
kW = real power (does work), kVA = apparent power (must be supplied)
Typical: Small motor 5-20 kW, Medium motor 20-50 kW, Large motor 50-200+ kW
Typical: Motors 0.80-0.90, IT equipment 0.95-1.0, Mixed loads 0.85-0.95
Tip: Adjust kW or PF to instantly update the result.
About this calculator
Turn planning kW and a realistic power factor into required kVA for motors, UPS systems, distribution transformers, and general industrial loads, before you size feeders or upstream equipment. For broader energy and current workflows, use the power calculator hub. Switch Conversion Direction to kVA → kW when you need the reverse (e.g. 1 kVA @ 0.8 PF → 0.8 kW).
Calculation Results
11.76kVA
Default: 10 kW at PF 0.85 → kW → kVA (instant preview; updates when you change inputs).
Based on standard power factor assumptions used in industrial equipment sizing.
Engineering disclaimer
This calculator provides power conversion estimates only. For final electrical system design, equipment sizing, and power factor correction, consult a licensed electrical engineer or certified professional. Actual power requirements may vary based on detailed load analysis, harmonics, and specific application requirements.
kW to kVA Conversion Chart (PF 0.85)
Use kVA = kW ÷ PF at 0.85 PF. The chart lists common kW steps for generator and transformer planning. Open a row to load values in the calculator, or expand View full reference table for all 35 kW steps with a filter.
| Real Power (kW) | Power Factor (PF) | Apparent Power (kVA) | Calculator |
|---|---|---|---|
| 1 | 0.85 | 1.18 | Open |
| 5 | 0.85 | 5.88 | Open |
| 10 | 0.85 | 11.76 | Open |
| 20 | 0.85 | 23.53 | Open |
| 25 | 0.85 | 29.41 | Open |
| 30 | 0.85 | 35.29 | Open |
| 50 | 0.85 | 58.82 | Open |
| 63 | 0.85 | 74.12 | Open |
| 75 | 0.85 | 88.24 | Open |
| 100 | 0.85 | 117.65 | Open |
| 125 | 0.85 | 147.06 | Open |
| 200 | 0.85 | 235.29 | Open |
| 250 | 0.85 | 294.12 | Open |
| 500 | 0.85 | 588.24 | Open |
| 1000 | 0.85 | 1176.47 | Open |
View full reference table
| Real Power (kW) | Power Factor (PF) | Apparent Power (kVA) | Calculator |
|---|---|---|---|
| 1 | 0.85 | 1.18 | Open |
| 2 | 0.85 | 2.35 | Open |
| 3 | 0.85 | 3.53 | Open |
| 4 | 0.85 | 4.71 | Open |
| 5 | 0.85 | 5.88 | Open |
| 6 | 0.85 | 7.06 | Open |
| 7 | 0.85 | 8.24 | Open |
| 8 | 0.85 | 9.41 | Open |
| 9 | 0.85 | 10.59 | Open |
| 10 | 0.85 | 11.76 | Open |
| 12 | 0.85 | 14.12 | Open |
| 15 | 0.85 | 17.65 | Open |
| 18 | 0.85 | 21.18 | Open |
| 20 | 0.85 | 23.53 | Open |
| 22 | 0.85 | 25.88 | Open |
| 25 | 0.85 | 29.41 | Open |
| 30 | 0.85 | 35.29 | Open |
| 35 | 0.85 | 41.18 | Open |
| 40 | 0.85 | 47.06 | Open |
| 45 | 0.85 | 52.94 | Open |
| 50 | 0.85 | 58.82 | Open |
| 63 | 0.85 | 74.12 | Open |
| 75 | 0.85 | 88.24 | Open |
| 90 | 0.85 | 105.88 | Open |
| 110 | 0.85 | 129.41 | Open |
| 125 | 0.85 | 147.06 | Open |
| 160 | 0.85 | 188.24 | Open |
| 200 | 0.85 | 235.29 | Open |
| 250 | 0.85 | 294.12 | Open |
| 315 | 0.85 | 370.59 | Open |
| 400 | 0.85 | 470.59 | Open |
| 500 | 0.85 | 588.24 | Open |
| 630 | 0.85 | 741.18 | Open |
| 800 | 0.85 | 941.18 | Open |
| 1000 | 0.85 | 1176.47 | Open |
kVA to kW chart (for reverse lookup)
Same page, opposite direction: kW = kVA × PF. Common steps at 0.8 PF (typical motors/generators) and 0.85 PF (industrial planning). Primary workflow remains kW → kVA above.
How to Convert kW to kVA (Formula & Explanation)
To convert kW to kVA (kilowatts to kilovolt-amperes), divide real power by power factor: kVA = kW ÷ PF. This applies to single-phase and balanced three-phase when you use total kW and an equivalent PF.
kVA = kW / Power Factor (PF)
kW to kVA calculation example
If you have 10 kW at 0.85 power factor, apparent power is: kVA = 10 ÷ 0.85 = 11.76 kVA
Tip: Use the kW to kVA calculator above for instant results at 0.8, 0.85, 0.9, or any custom PF between 0.1 and 1.0 — including kW ↔ kVA reverse mode.
kW vs kVA: kW is real power (does work); kVA is apparent power (must be supplied by the source or equipment rating).
Mechanical loads are often rated in hp (horsepower). Use 1 hp ≈ 0.746 kW (IEC) to express motor power in kW, then use the calculator with your PF.
How to convert 1 kVA to kW
Quick answer: Use kW = kVA × PF. For 1 kVA: PF 1.0 → 1.0 kW · PF 0.85 → 0.85 kW · PF 0.8 → 0.8 kW. There is no single fixed convert without PF. Open 1 kVA → kW @ 0.8 PF (same calculator; primary mode remains kW → kVA).
Example: 1 kVA at 0.8 PF → kW = 1 × 0.8 = 0.8 kW. Enter PF from nameplate or field data; motors often sit near 0.80–0.90 and many IT loads near 0.95. For three-phase line voltage and current relationships, see 3-Phase Power Calculator.
Need kVA → kW? Open kVA → kW mode (this tool) or choose kVA → kW under Conversion Direction in the calculator above. After you have kVA, continue sizing with kVA to amps or transformer sizing when needed.
- kW → kVA: divide real power by PF.
- kVA → kW: multiply apparent power by PF.
- PF is between 0 and 1; use nameplate or measured values when possible.
More context: 3-phase power formula · Power factor formula · kW vs kVA · 3-phase power calculator · kVA to amps · Transformer sizing · Power Calculators Hub
kVA² = kW² + kVAR²; with PF known, PF = kW ÷ kVA.
Engineering decision examples
After kVA = kW ÷ PF, add application-specific planning margins before you order equipment. Values below are computed from the same sizing rules as the live calculator preview.
UPS protected bus
- Load
- 40.0 kW
- PF
- 0.95
- Required kVA
- 42.1 kVA
- Recommended
- 50.0 kVA
Next standard UPS frame with 15% planning headroom (IT-style PF when applicable).
Transformer feed
- Load
- 75.0 kW
- PF
- 0.90
- Required kVA
- 83.3 kVA
- Recommended
- 100 kVA
Next standard transformer kVA with 10% margin for continuous industrial load.
Application decision table
Typical power factor and planning recommendation by application—computed with configured margins, not a raw conversion chart. Use the calculator for your load.
| Application | Typical PF | Required kVA | Recommendation |
|---|---|---|---|
| Generator backup | 0.80 | 125 | 150 kVA |
| UPS / IT bus | 0.95 | 105 | 160 kVA |
| Induction motor | 0.85 | 118 | 160 kVA |
| Transformer load | 0.90 | 222 | 250 kVA |
| VFD drive | 0.96 | 78.1 | 100 kVA |
| HVAC chiller | 0.88 | 284 | 350 kVA |
| Data center row | 0.95 | 84.2 | 100 kVA |
| General mixed load | 0.85 | 74.1 | 100 kVA |
Engineering notes
Common mistakes
Treating kW as kVA is the most frequent sizing error—motors and mixed plants rarely run at unity PF.
Recommendation: Always divide kW by a realistic PF before you match generator, UPS, or transformer catalog frames.
Safety margin
Steady-state kVA does not cover motor starting, harmonics, or planned expansion.
Recommendation: Add 10–25% planning margin in the dedicated sizing tool after this converter gives baseline kVA.
Power factor selection
Nameplate PF, measured PF, and application defaults differ—IT loads often exceed 0.95 while induction motors sit near 0.80–0.90.
Recommendation: Use measured data when available; otherwise pick an application-specific PF in the decision table below.
Oversizing
Oversized sources improve headroom but increase cost, losses, and minimum loading issues.
Recommendation: Round up to the next standard frame only after margin rules—not every intermediate kVA step is a catalog size.
Undersizing
Undersizing apparent power risks overload alarms, breaker nuisance trips, and voltage depression during inrush.
Recommendation: If required kVA is within ~10% of the next catalog step, treat the frame as tight and verify in the downstream tool.
Starting current
Motor and transformer energization can draw several times steady kVA for seconds.
Recommendation: Use generator and UPS sizing tools for inrush factors—this page models steady kW ÷ PF only.
Electrical sizing workflow
Move from apparent power to current, protection, conductors, and backup planning.
Need the full explanation?
Understand power factor formulas, utility penalties, and correction workflows in the Power Systems cluster authority guide.
Frequently Asked Questions
How do I convert kW to kVA?
Divide real power by power factor: kVA = kW ÷ PF. Example: 10 kW at PF 0.85 = 11.76 kVA. Enter kW and PF in the calculator for any load.
How to convert 1 kVA to kW?
Multiply by power factor: kW = kVA × PF. At PF 1.0, 1 kVA = 1 kW. At 0.85 PF, 1 kVA ≈ 0.85 kW. At 0.8 PF, 1 kVA = 0.8 kW. Open 1 kVA → kW @ 0.8 PF in the calculator.
How many kVA is in 1 kW?
It depends on PF. At 0.85 PF, 1 kW ≈ 1.18 kVA. At 0.80 PF, 1 kW = 1.25 kVA. Open 1 kW @ 0.85 PF in the calculator.
Is 1 kW equal to 1 kVA?
Only when power factor is 1.0 (unity). At typical industrial 0.85 PF, 1 kW ≈ 1.18 kVA because apparent power must cover real power plus reactive load. Compare 1 kW at your PF.
What is 1 kWh in kVA?
kWh is energy (kilowatts × hours); kVA is instantaneous apparent power—you cannot swap them without a time interval. 1 kWh means 1 kW of real energy consumed over one hour. At PF 0.85, that hour averaged about 1.18 kVA of apparent power (1 ÷ 0.85). For equipment sizing at a steady load, convert kW → kVA with kVA = kW ÷ PF in the calculator.
Is 1 kW equal to 1 HP?
No. One mechanical horsepower (HP) ≈ 0.746 kW (745.7 W). So 1 kW ≈ 1.34 HP, and a 1 HP motor draws about 0.75 kW at full load before efficiency and PF. Convert HP to kW, then use kVA = kW ÷ PF for transformer or generator sizing. See the HP note in Conversion Chart.
How much is 10 kW in kVA?
At PF 0.85, 10 kW = 11.76 kVA (10 ÷ 0.85). Open 10 kW in the calculator or adjust PF for your equipment.
Is 60 kVA the same as 60 kW?
Not usually—60 kVA = 60 kW only at PF 1.0. At 0.85 PF, 60 kW ≈ 70.6 kVA (60 ÷ 0.85). Try 60 kW @ 0.85 PF in the calculator.
How many kW is 1 KV?
In kW/kVA searches, KV often means kVA (typo), not kilovolts. If you mean 1 kVA at 0.85 PF, real power ≈ 0.85 kW (kW = kVA × PF). For voltage in kV, that is a different unit—use your line voltage in the kVA to amps tool.
What is 20 kVA in kW?
At PF 0.85, 20 kVA ≈ 17 kW real power (kW = kVA × PF). At unity PF, 20 kVA = 20 kW. Adjust PF in the calculator for your load.
How many kW is 20 kVA?
At PF 0.85, 20 kVA ≈ 17 kW (kW = kVA × PF). At PF 1.0, 20 kVA = 20 kW. Enter 20 kVA equivalent load and your PF in the calculator.
What is 20 kW in kVA?
At PF 0.85, 20 kW ≈ 23.53 kVA (20 ÷ 0.85). Open 20 kW @ 0.85 PF in the calculator.
What is 7 kW in kVA?
At PF 0.85, 7 kW ≈ 8.24 kVA (7 ÷ 0.85). Calculate 7 kW with your PF.
What is 25 kW in kVA?
At PF 0.85, 25 kW ≈ 29.41 kVA (25 ÷ 0.85). Prefill 25 kW in the calculator.
What is 50 kW in kVA?
At PF 0.85, 50 kW ≈ 58.82 kVA (50 ÷ 0.85). See the conversion chart or open 50 kW in the calculator.
What is 100 kW in kVA?
At PF 0.85, 100 kW ≈ 117.65 kVA (100 ÷ 0.85). Calculate 100 kW with your PF.
What is 200 kW in kVA?
At PF 0.85, 200 kW ≈ 235.29 kVA (200 ÷ 0.85). Add design headroom before generator or transformer selection.
What power factor should I use?
Use nameplate or measured PF first. If unavailable, start with 0.80–0.90 for motors or 0.95 for IT loads, then verify with the calculator. For UPS sizing, continue to the UPS capacity calculator after kVA—see also UPS efficiency and losses when PF or η limits runtime.
Why does low PF increase kVA?
At the same kW, lower PF means more apparent power is needed. Use the calculator to compare different PF values and see required kVA instantly.
Can I use this as a kW to kVA converter?
Yes—enter any kW and PF to get kVA instantly. Formula: kVA = kW ÷ PF. Example: 100 kW @ 0.8 PF = 125 kVA. Open the converter.
How do I convert kW to kVA for 3-phase loads?
Use the same formula on this page: kVA = kW ÷ PF with total three-phase kW and an equivalent PF. Then continue to kVA to amps (3-phase) for line current. For V–I–PF relationships, see 3-Phase Power Calculator.
How do I choose kVA for generator or transformer sizing?
Start from nameplate or measured kW, apply a realistic PF to estimate kVA, then add 15–25% design headroom for harmonics, inrush, and load variation before selecting equipment. Validate assumptions with a licensed engineer for final design.
Review & sources
Reviewed: CalcPanel Electrical Engineering Team
Updated: 2026-06-29
Reference
Power conversion center
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