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

i do know one gallon of water weighs 10 lbs.

### 13 Answers

- bignose68Lv 41 decade agoFavorite 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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- DawnKarinLv 44 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- Log in to reply to the answers

- 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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- Anonymous1 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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- lenpol7Lv 71 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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- SS4Lv 71 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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