Unit of Measure Conversions

Power Conversions

Power is the rate of doing work - work per unit time.

INPUT value:

OUTPUT values

INPUT unit:	erg/second	erg/s
	watt	W
	foot⋅pound/second	ft⋅lb/s
	metre⋅kilogram/second	m⋅kg/s
	metric horsepower	PS
	UK horsepower	hp
	kilowatt	kW

Messages:

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Additional Units and Information

Name	Symbol	Value	Description/Notes
British Thermal Unit/second	BTU/s	1,054.35 watts
calorie/second	cal/s	4.184 watts
erg/second	erg/s	1 dyne⋅centimetre/second
Cheval Vapeur; Pferdestarke	CV; PS	75 metre⋅kilograms/second	Metric horsepower
watt	W	1 newton⋅metre/second; 1 joule/second

Useful Approximations

Approximation	% Accuracy
1 UK horsepower ≈ ¾ kilowatt	99.4
1 UK horsepower ≈ 1 metric horsepower	98.6