thickness of a material

Yes there is a formula:

Weight = density * volume = density * length * width * thickness

In order to get the thickness - you need to know 2 other dimensions.

So is there any other information that you can provide regarding dimensions of this product?

By the way - the density of generic "mild steel" is 7.85 grams/cubic centimeter

is it right that the conversion of 1kg is 1000g?i am not sure about this.can you tell me if it is right?

Yes that is correct. 1 kg = 1000 g

As another poster noted - depending on just how critical you need your weight calculation you may want to verify the actual density of your steel.

Yes

I dont know how to help you,

however, I suggest you check the density of hte mild steel and meaure area so that you can get the thickness without any difficult.

Welcome aboard! If all else fails, the mill run data from the manufacturer might include the density, gauge, and weight per square (foot, yard, meter, etc.) for a given batch as supplied. If it has been post-mill processed, that might or not be of any use to you.

If you need too ask if 1000g = 1kg, I hope you're not designing anything on which lives or your savings depend.

Wait till he need to go from lb to kg.

You of the best free unit conversion programs offered can be found to download at:

http://joshmadison.com/article/convert-for-windows/

I use it almost daily.