How to convert metric horsepower to horsepower
To convert a measurement in metric horsepower to horsepower, multiply the value by 0.98632007062. The conversion factor comes from the relationship between both units and the watt.
For example, to convert 5 PS to horsepower: 5 × 0.98632007062 = 4.9316 hp.
What is a metric horsepower?
Metric horsepower (PS or cv) is a unit of power equal to exactly 735.49875 watts, slightly less than mechanical horsepower. Defined in continental Europe, metric horsepower (from the German 'Pferdestärke', PS) is the traditional unit for car engine power in Europe and Japan, where figures are often quoted in PS.
Common uses of metric horsepower include: European and Japanese car engine ratings; Motorcycle power specifications; Comparing PS to hp and kW; Automotive marketing figures.
What is a horsepower?
Mechanical horsepower (hp) is a unit of power equal to about 745.7 watts, originally defined to compare engine output to the work of draft horses. James Watt coined horsepower in the 1780s to market his steam engines against the horses they replaced. Mechanical horsepower remains the dominant unit for engine power in the United States.
Common uses of horsepower include: Car and motorcycle engine ratings (US); Lawn mowers and power tools; Marine and outboard motors; Comparing engine performance.
Metric Horsepower to horsepower worked examples
Here are some common values converted:
1 PS = 0.98632007062 hp 5 PS = 4.9316 hp 10 PS = 9.863201 hp 50 PS = 49.316004 hp 100 PS = 98.632007 hp
Frequently asked questions
How many horsepower are in one metric horsepower?
One metric horsepower (PS) equals 0.98632007062 horsepower (hp). Multiply any value in metric horsepower by 0.98632007062 to convert to horsepower.
How do I convert metric horsepower to horsepower?
Multiply the value in metric horsepower by 0.98632007062. For example, 5 PS × 0.98632007062 = 4.9316 hp.
How do I convert horsepower to metric horsepower?
Multiply the value in horsepower by 1.01387, or divide by 0.98632007062. Use the swap button on the converter above to reverse the direction.
Is the metric horsepower to horsepower conversion exact?
Mechanical horsepower is defined as exactly 745.7 W and metric horsepower as 735.49875 W. SI conversions are exact.
What is the formula for metric horsepower to horsepower?
The formula is: hp = PS × 0.98632007062. This comes from the definition of both units relative to the watt.