This app is aimed at users who wish to do a basic calculation of power consumed by an axial or centrifugal fan, and any pump. Following basic parameters are required: 1) For fan power calculation: a) Air volume in cubic meter per hour. b) Static pressure in Pascals. c) Dynamic pressure in Pascals. d) Expected efficiency of the fan. Respective fan curves should be referred for the same. 2) For Pump power calculation: a) Water volume pumped. b) Fluid density in kg/cubic meter c) Head in meters d) Efficiency of pump. Pump curves of the particular pump should be referred for the same. Disclaimer: This app is for just a general calculation on the go and any calculation derived from this app should in no way referred to be basis of a final design or product.