what is the weight of one cubic meter of water.?

i do know one gallon of water weighs 10 lbs.

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  • 1 decade ago
    Favorite Answer

    Water weighs 1 gram per cc. One meter is 100 centimeters.

    Therefor a cubic meter = 100 * 100 * 100 cc

    = 1,000,000 cc so the water weighs 1,000,000 grams = 1000 Kilograms

    Incidentally a gallon of water weighs a little over 8 pound

    62.4 lbs/cubic foot/ 7.5 gal/cu ft = 8.32 lbs

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  • 4 years ago

    Water has a weight of 1 gram per cubic centimeter or 1000 kg in one cubic meter 1000 kg =1 metric ton, therefore, one cubic meter weighs 1 metric ton.

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  • 1 decade ago

    1 10cm x 10cm x 10cm cube weights 10kg

    1m = 10 x 10cm

    So the number of cubes of the required size in 1 cubic meter

    is 10 x 10 x 10 = 1000

    Therefore 1 cubic meter of water weights 1000kg or 1 metric ton

    Source(s): My head
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  • 1 decade ago

    I metric tonne. 1 ml water = I gram and fits exactly into 1 X1 X1 cm

    thus 1 ltr of water = 1kg and fit into a 10 X 10 x 10 cm enclosure

    The metric system was designed this way.

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  • Anonymous
    1 decade ago

    1 litre of water = 1 kg

    there are 1000 l in 1 cubic metre so 1000kg which is 1 metric tonne.

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  • 1 decade ago

    1 cm3 of water has a mass of 1 gm

    1 m3 = 1.00 x 10^6 cm3

    Therefore there are 1.0 x 10^6 g in 1 m^3

    Divide by 1000 to convert to kilo grams

    1.0 x 10^6 divided by 1000 = 1.0 x 10^3 kgs.

    Divide by 1000 again to convert tonnes.

    1.0 x 10^3 divided by 1000 = 1.00 tonnes. (the Answer).

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  • 1 decade ago

    Freshwater, density 1000 : 1 cubic metre weighs 1000 kilos or 1 tonne

    Seawater, density 1025 : 1 cubic metre weighs 1025 kilos or 1.025 tonnes

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  • 1 decade ago

    1 metric ton.

    1 litre of water weighs 1 kilogram.

    1000 litres will occupy 1 cubic metre hence 1000 kilograms or 1 ton.

    Neat system huh?

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  • 1 decade ago

    Saw this and thought one metric tonne - seems everyone else thought the same

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  • SS4
    Lv 7
    1 decade ago

    It depends where on Earth you are. Assuming g=9.807ms^-2

    9807N = 9.807kN

    Assuming you actually meant mass...

    1000kg or 1 metric ton (or however it is spelt)

    density of water = 1000kg/m^3

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