I would like to know the conversion of "Specific Heat"(KJ/Kg/K) to "Overall Heat Transfer Coefficient"(W/m2/K) for the calculation of heat load. Looking forward for the answers. Immediate reply would be appreciated.

Thanks,
Rupesh

Try this conversion site.
Calculator for Converting Units of Specific Heat Capacity or Specific Entropy (http://www.gordonengland.co.uk/conversion/specific_heat.htm)
http://online.unitconverterpro.com/conversion-tables/convert-alpha/factors.php?cat=specific-heat&unit=2&val=100