kW to Amps Calculator (Excel) – 1-Phase & 3-Phase

Stop doing the math by hand. This ready-to-use Excel spreadsheet instantly converts kilowatts to amperes for both single-phase and three-phase systems — saving you 5+ minutes every time you size a circuit.

How It Works

Enter three values and get your results instantly:

• Power (kW)
• Voltage (V)
• Power Factor (cos φ)

What You Get

• Current per phase (Amps)
• Recommended circuit breaker rating
• Minimum cable size suggestion

Who It's For

Electrical engineers, contractors, technicians, and students who regularly size circuits and want a fast, reliable calculation tool they can trust on the job.

Format: Instant download — Microsoft Excel (.xlsx), compatible with Excel 2016+ and Google Sheets.