spring rates from lbs to kg

[Celica RA45]

how do you go from lbs to kg as i have 2 sets of springs here 1 set is 250 lbs per inch of movement and 1 set of 275lbs can some one help a old bloke to convert to kg please

[LittleRedSpirit]

Well theres 2.2 pounds in a kg and theres 25.4mm in an inch.

Got maths?

[steroidchickens]

To convert kg/mm to lbs/in, divide by .0179.
To convert lbs/in to kg/mm, multiply by .0179.

got that from dimitris coilover thread

[Hen may possibly be a nut]

1kg = 2.2lb
1mm = 0.0394"

Therfore:
1 kg/mm = 2.2/0.0394 lb/in
= 55.9 lb/in

So from kg/mm to lb, multiply by 56. From lb to kg/mm divide by 56

Hen

Or even easier,

EDIT - Beaten by two... I must type slow.

[Celica RA45]

gee guys you could of worked it out for me as my brain hurts 275lbs to kg and 250 lbs to kg

[Celica RA45]

thanks guys

[Kid Karola]

275lbs = 4.9kg (~5)

and

250lbs = 4.5kg

*Thats spring rates not mass obviously

[ke70dave]

ive just seen this thread.

google has this brilliant command called "convert"

for instance if you google:

convert 6kg/mm to lb/inch

it will tell you.

i am yet to find a unit of measurement it can't convert. you just gota make sure you have the correct units (spelling etc)