Power conversions use Result = Value × (from-unit → watts) ÷ (to-unit → watts), based on standard published conversion factors.
1 horsepower to watts: 1 × 745.7 ≈ 745.7 W.
Watts, kilowatts, and horsepower, all converted through a common watts base unit.
Conversion factors for watts-based units follow standard published values; the result is rounded to two decimal places for display.