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Spring rate conversion formula?

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Old Sep 10, 2005 | 08:51 PM
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Default Spring rate conversion formula?

I've been trying to come up with a formula to convert srping rates from Newtons per mm to Pounds per inch. I've been trying N/.2248089=lbs. The .2248089 being the newton to pound conversion. Any racers who work with both? any help greatly appreciated.
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Old Sep 11, 2005 | 01:35 AM
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don't you have two conversions to make N to Lbs and mm to Inch?

25.4mm=1"
.2248089= 1N

1 newton/square millimeter = 145.037738 pound/square inch [absolute]

conversion site
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Old Sep 11, 2005 | 07:53 AM
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cool site
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Old Sep 11, 2005 | 08:11 AM
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Really good site, thanks!
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Old Sep 11, 2005 | 10:49 PM
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Originally Posted by IM QUIKR
don't you have two conversions to make N to Lbs and mm to Inch?

25.4mm=1"
.2248089= 1N

1 newton/square millimeter = 145.037738 pound/square inch [absolute]

conversion site
You gave the conversion for pressure, the correct one for spring rates is 1 N/mm=5.7101 LB(force)/in.
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Old Sep 12, 2005 | 04:07 PM
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Default It all works though

I've been trying a formula that i came up with and all other formulas listed here and i keep coming up with the same spring rate so hey long as it works right? big thanks to all involved in helping to get this one answered.
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Old Dec 28, 2018 | 06:38 AM
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I Suggest to use this unit converter to get quick and accurate measurement conversion.

Last edited by sneha rani; Nov 26, 2020 at 08:30 AM.
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Old Jan 6, 2019 | 08:39 PM
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I have used: ( N/mm / 0.175 = lb/inch ) to convert spring rates, got that from another forum member awhile back.
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