You can't. Picowatts is a unit of power. Cubic centimetres is a unit of volume. It would be the same as asking how to convert a horse to a house.
You don't. cc is the size of the engine. It cannot specify the h.p. which is variable.
How do you convert horse poop to energy?
you can convert cubic inches to cc's but not horse power. an engine with say 65 cc's can have different amounts of horse power depending on carberation, pistons, valves etc. etc. etc. but my 65 cc engine does have 1.89 hp if that helps.
In cubic inch displacement or cubic centimeter displacement or HP (horse power).
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While engine displacement and Horse power are related, you can't mathematically convert either cc's or cubic inch into horsepower. Many small displacement engines produce very high Horse power and vice-versa! Dyno-testing supplies Horse power values and displacement is measured statically through volume measurements.
I don't think that horse power and cubic centimeters are directly proportional. Horsepower is a unit of measurement for work. However, cubic centimeters is one part of the equation of the output of a conventional gasoline engine, other parts would be air input, exhaust output, fuel ratio, etc...
very hard to convert, about 2.5-3.5hp per 100 cc in mowers
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1 per cubic inch
Probably 9 - 10 but this number depends on various inconsistencies with engine design and build which includes but is not limited to valve design and configuration. Also it's difficult to convert "cubic centimeters" or "cubic inches" into "horse power" due to the fact that one is a measurement of "area" and the other is a measurement of "power". Hope this helps.