calculation

If you have width, height, thickness and the length in mm, then you have the total volume. Multiply this volume of material by the density, and you will have the weight of the piece.

Volume * Density

Refer any steel table. For any standard angle size you can directly get weight per meter length.

guys ............this is not what im looking for .........it seems youll have not got it ....just an example...... if u need to calcukate the weight of flatbar.... what is the formula to calculate it ...simple ....Width x Thickness X Lenght X .00785 gives youthe weight per pc.

Same if u have C section like 125 x 65 x 6mts length ....i need to know how to calculate the weight ....i need an simple answer.

This is not the forum for doing your simple home work. Go through some geometry text books and get the answer.

That's not how this forum works, maxi. And I can assure you that aside from the help that the other posters just graciously tried to give you... this post of mine will be the kindest words you see from this point forward, from the rest of the members.