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How To Convert Hp To Kw

Garth

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ive come accros this, you might like to try this

to convert hp to kw use the following as a example

150hp =xkw
you go like this 150 x .746 = 111.9kw,

so, the old vn is 125kw, then to work it backwards in hp you would do the following

125kw x 1.34 = 167.5 hp, not bad


once again, to get a hp figure into kw you multiply hp figure by .746
to get a kw figure into hp rating you multiply by 1.34

or there is this one, to get torque at any given time

hp=torque x rpm/5252 you transpose that formula to be the following

you go like this,

torque = hp / rpm x 5252 / is devide

we have the hp listed above, 167.5hp, rpm, let's say that's at 2.2k (2200rpm)
you go, 167.5 / 2200 (then hit = button) then multiply answer by 5252 and you get torque, expressed in nm in this formula it's 399.868nm

once again, you need to transpose the formula hp=torque x rpm / 5252 to get torque formula of torque = hp/rpm x 5252, remember, the rpm is the only variable in this formula, hp and the 5252 are not variants


cheers
garth

have fun playing with this
 

AirStrike

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Yeah I got a few more, just a quick break down tho.
KiloWatts ---> HorsePower = Kw * 1.355818
HorsePower ---> KiloWatts = Hp * 0.737562121169655514235686500695521
Cubic Inches ---> Litres = C.I * 0.0164
Litres ---> Cubic Inches = Ltrs * 61.02374
Miles per hour ---> Kilometers per hour = M.P.H * 1.609344
Kilometers per hour ---> Miles per hour = K.P.H * 0.621371
Torque ---> HorsePower = (Torque * RMP)/5252
HorsePower ---> Torque = (HorsePower * 5252)/R.P.M
Bore + Stroke ---> Displacement = Bore diameter^2 x .7854 x stroke length x number of cylinders

Some may seem stupid but these are not rounded and give the exact value.
 

AirStrike

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You can also combine them for example;
HorsePower ---> Torque = (HorsePower * 5252)/R.P.M
but u can use the equation for KiloWatts ---> HorsePower if you know ur car in kW
 

OSL-060

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Or......

Just download this great little conversion calculator I've been using for awhile

http://www.joshmadison.com/software/convert/dl.asp

It's only 152k, so it doesnt take long to download- even on crappy dial up

Hope it comes in handy

Jake.
 

OSL-060

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Ok, I dug this up from the depths of my documents. Just a little page of basic conversions and racing formula's I made awhile back.
 
O

onezero

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http://www.esbconsult.com/esbcalc

The program downloadable from the above site will convert everything and anything.

Also, to be used for estimation, RWHP can be seen as flywheel KW. (autos have approx. 30% drivetrain loss, manuals 25%, on the other hand FWD's are 15-20%)
 
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