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Cutting Parameters

Machine Power Calculator for Shop Equipment

Estimate apparent power, real power, and hourly energy cost from voltage, current, and power factor. Useful for comparing machine loads, utility planning, and shop cost estimates.

Input Parameters

Results

Current (A)
Apparent Power (kVA)
Energy Cost/hr
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Machine Power formula and how to use it

For three-phase machines, use the correct three-phase power formula and measured current. This page is a quick estimate, not an electrical design calculation.

Frequently asked questions

What is kVA?

kVA is apparent power. It combines voltage and current before adjusting for power factor.

What is power factor?

Power factor describes how effectively electrical power is converted into useful work. Motors often operate below 1.0.

Can this size electrical service?

No. Use a licensed electrician and machine nameplate data for service sizing, breakers, and code compliance.

How to use this Machine Power calculator

Use this calculator for a quick estimate of apparent power, real power, and hourly electricity cost for shop equipment.

Common mistakes to avoid

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Need carbide tooling for this operation?

Use the calculator freely. If the result points to a tooling or process problem, we can source the exact carbide tooling you need from vetted factories in China. Compare factory-direct pricing.