Drone are now commercially used in almost every industry from delivery to defense, general people also make them for hobbies, but due to lack of clear open source information, new enthusiast and even the existing one find it very difficult to build it on their own without any professional help. This paper presents a less complex and simplistic way to do all the calculations of all vital parameters needed for building any drone. This paper presents the theoretical validation of the equations which are derived and mentioned in the paper with the practical data obtained from the prototype built. The analysis of each parameter is done very precisely to make the mistakes as low as possible. All the equations which are mentioned have some assumptions and use of standard values, which is clearly mentioned with the work. The prototype built is an autonomous system containing six rotors and communication modules for sending data on the ground. The conclusion of the paper shows the difference in the accuracy between theoretical values calculated from the derived equations and what practical testing gives. © 2021 IEEE.