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.
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Request a Proposal →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.
kVA is apparent power. It combines voltage and current before adjusting for power factor.
Power factor describes how effectively electrical power is converted into useful work. Motors often operate below 1.0.
No. Use a licensed electrician and machine nameplate data for service sizing, breakers, and code compliance.
Use this calculator for a quick estimate of apparent power, real power, and hourly electricity cost for shop equipment.
Continue with closely related tools from the machining calculator library.
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.
Before you commit to a spec, it helps to know what the market pays for it. These are real, publicly listed factory prices — not a quotation, and not a guess.
We source the tool families below direct from vetted Chinese factories, matched to the material and tolerance you just worked out. Every batch ships with its material certificate and dimensional record.
SIZING A MACHINE? Power draw sets cycle time, and cycle time sets how many edges you burn per year. The economics of those edges are in what drives the unit price of a carbide tool.
We source carbide cutting tools from China for job shops. We do not own a factory, which is why we can quote your drawing against two or three plants that actually run your material.
Cutting formulas with the units worked through · Speed and feed starting points for all six ISO material groups · How to read a carbide grade past its ISO code. 12 pages.
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