The metric unit of power is the 'watt', and of course its power-of-ten multiples
and submultiples are used where necessary to produce convenient numbers.
Probably the closest to the horsepower is the 'kilowatt' = about 1.3405 HP .
The only unit that appears in both the modern SI (metric) system and the old fashioned system is the second.
None. The US system is based largely on the Imperial system (the gallon and ton differ a little between US and British versions), but neither shares units with the Metric system and its Systeme International (SI) derivative. Every unit in one has to be converted numerically to its equivalent measure in the other, and almost no conversion from an integer count of units in one system gives an integer result.
Grams or litres - depending on whether you wanted its mass or volume.
Centimeters are the preferred metric unit of measurement for both clothing and body parts. This is why size charts for the US versus other countries appear so different.
No, Foot belongs to the Imperial and US customary units (according to Wikipedia)
METRIC
Since gallon is a volume unit and the metric ton is a weight unit there is no possible conversion factor. It all depends on the density of the material.
Meters are commonly used inside the metric system, while they're equivalent in the Imperial (US) system is called feet.
A gram is a metric unit of mass. Ounces are not metric. Ounces might be a unit of weight, but they might also be a unit of liquid volume, and you have to guess which one is intended, because they're not equivalent. Also, a fluid ounce in the US is not the same as a fluid ounce in the UK, but a ounce of weight in the US is exactly the same as an ounce of weight in the UK.
A tonne is a metric unit, equivalent to 1,000 kg. A ton is an imperial unit (long ton) equivalent to 2240 avoirdupois pounds and US customary unit (short ton) equivalent to 2,000 US pounds. 1 tonne = 1.10231 short tons = 0.984206528 long tons.
A kilowatt is the metric unit for power. A horsepower is the Imperial unit for the same thing. So there's absolutely no reason why a kilowatt shouldn't be used to measure the output power of a car engine in the same way that a horsepower was. In fact, outside the US, most countries rate their car engines in kilowatts not in horsepower.
seconds
There is no individual unit in the Metric system that is near one inch in the English system, I'm afraid.
No. The kilogram is a metric unit of mass and is not commonly used in the US. ------- In the US we use pounds instead of kg. Although companies will put both US & metric measurements on packaging, especially food items.
Ounces are an imperial unit. They are a bit confusing as they can be a volume unit or a mass unit. The metric equivalent would be gram or millilitre. About 30 gram = 1 oz About 30 mL = 1 fluid oz
1 US gallon per minute = 0.0735 litres per second (approx).Incidentally, a minute is not a basic Imperial unit for time. Both Imperial and the metric system use second as a unit for measuring time.
The SI unit is a Newton. The old US unit is the pound-force or the poundal.