How to calculate form work quantiy for beams,slabs and columns .i am little bit confused please help me out thank u.

This is only about SURFACE AREA calculation. make sure that there is no overlapping of area in your calculation. Formwork for slab ends where it meets the wall of the beams and beam ends where it meets the formwork for the column.

All contact surface has to be calculated in order to know the area of the form work