How much percent genetics and environmental play role in human height ?

Cannot quantify: Hi. We cannot quantify what percentage is genetic and what percentage is environment in height or any other phenotype, but under normal circumstances (adequate nutrition, etc), for height it's mostly genetic. Disease can be classified in that assessment of phenotype as either environment or genetic, depending.

Normally genetics: Normally genetics are the determining factor in human height, yet some medical conditions and actually possibly some medications may contribute to either more or less growth. This is a topic with a wide range of research.