HP to Watts Converter

About This Tool

This tool converts horsepower to watts and kilowatts with a focus on mechanical horsepower by default. It provides exact outcomes for W and kW, enabling rapid power sizing and comparison across motors and generators. Conceptually, the tool applies a standard power base: 1 HP equals 745.7 W for mechanical horsepower, with an optional 735.5 W per PS for metric horsepower. The calculation is straightforward: watts = HP × factor; kilowatts = watts ÷ 1000. The tool supports an optional hp_type input to switch between mechanical and metric bases, ensuring correct results for regional practices. It benefits engineers, technicians, students, and makers who need quick, reliable conversions during design reviews, lab work, or field calculations. Core value lies in accuracy, speed, and consistency, avoiding manual arithmetic and rounding errors in cross-unit power discussions. Typical use cases include sizing a motor, estimating generator output, or converting lab test data to a common electrical power unit for documentation and budgeting. The tool emphasizes robust numeric input handling and clear output formatting to support downstream calculations and reports.

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