Estimate of Building means to calculate the quantity and identifying the cost. In this post i have prepared the online tool which provide the Building quantity and cost. You need to put the values in highlighted colors to get good approximate estimate.
Before use of the following tool of building estimation watch the following video for more understanding.
Note : This tool provide only approximate estimate for the Building. If you want to learn Building estimation using a plan watch more video on http://www.civilnotess.com/estimation-and-costing-of-building.html