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Math Help - pounds to kilos

  1. #1
    bportega
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    Unhappy pounds to kilos

    Id like to know how I can convert pounds to kilograms. For instance how many kilograms equal 100 lbs. And vice versa.

    Id also like to know how to convert, miles to kilameters, and inches to centimiters.
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  2. #2
    dud
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    1 pound equals 0.4536 kg (or 453.6 grams). So multiply pounds with 0.4536 to get kilograms.

    One (imperial) mile equals 1.6093 km (or 1609.3 metres).
    One (imperial) inch equals 2.54 cm (or 0.0254 metres).

    You can view all the metric to imperial stuff over at http://convert.french-property.co.uk/ and many other websites as well.
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  3. #3
    Grand Panjandrum
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    Quote Originally Posted by bportega
    Id like to know how I can convert pounds to kilograms. For instance how many kilograms equal 100 lbs. And vice versa.

    Id also like to know how to convert, miles to kilameters, and inches to centimiters.
    google for "unit conversion" one of you hits will be this

    RonL
    Last edited by CaptainBlack; February 26th 2006 at 06:34 AM.
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  4. #4
    Site Founder MathGuru's Avatar
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    Google will actually perform unit conversions like this.

    Just type "100lbs in kg" and hit search
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  5. #5
    Forum Admin topsquark's Avatar
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    Follow everyone elses' suggestions bportega, and you'll get the right answers.

    However, just to prove how anal I am...

    You all are aware, of course that there IS no true conversion between lbs and kg? I teach unit conversions in my Physics classes and I've always had a hard time teaching what units go with what physical quantities thanks to the European convention of measuring weight in "kilograms."

    For the record, the metric (i.e. MKS) unit for weight is the "Newton," not the kilogram, which measures mass. I usually take the standard (if there is one!) English unit for mass as being the "slug." So we convert pounds to Newtons and slugs to kilograms.

    BTW: My favorite unit is the "furlong/fortnight."

    I'll stop ranting now...Thank you.

    -Dan
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  6. #6
    Grand Panjandrum
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    Quote Originally Posted by topsquark
    Follow everyone elses' suggestions bportega, and you'll get the right answers.

    However, just to prove how anal I am...

    You all are aware, of course that there IS no true conversion between lbs and kg? I teach unit conversions in my Physics classes and I've always had a hard time teaching what units go with what physical quantities thanks to the European convention of measuring weight in "kilograms."

    For the record, the metric (i.e. MKS) unit for weight is the "Newton," not the kilogram, which measures mass
    Best remembered as the weight of an apple is about 1 Newton



    I usually take the standard (if there is one!) English unit for mass as being the "slug." So we convert pounds to Newtons and slugs to kilograms.

    BTW: My favorite unit is the "furlong/fortnight."

    I'll stop ranting now...Thank you.

    -Dan
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  7. #7
    Grand Panjandrum
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    Quote Originally Posted by topsquark
    Follow everyone elses' suggestions bportega, and you'll get the right answers.

    However, just to prove how anal I am...

    You all are aware, of course that there IS no true conversion between lbs and kg? I teach unit conversions in my Physics classes and I've always had a hard time teaching what units go with what physical quantities thanks to the European convention of measuring weight in "kilograms."
    Not that the imperial/customary system of was above using the pound
    as a unit of force and mass. I suppose that is to avoid the terror associated
    with killer Slugs

    For the record, the metric (i.e. MKS) unit for weight is the "Newton," not the kilogram, which measures mass. I usually take the standard (if there is one!) English unit for mass as being the "slug." So we convert pounds to Newtons and slugs to kilograms.

    BTW: My favorite unit is the "furlong/fortnight."

    I'll stop ranting now...Thank you.

    -Dan
    Follow Math Help Forum on Facebook and Google+

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