An education tool always helps to increase the autonomy in learning new things and to practice the learned things. Astrophysics is a branch of science that tries to explain the events of the cosmos through mathematical principles. Learning astrophysics involves formulas and calculations. Because of this, we decided to build a calculator that has some inbuilt formulas used for calculating some physical quantities related to astrophysics. We have chosen topics that involved the school level of mathematics and physics, as we are targeting the students of age group 14- 18. Using this calculator, students can analyze various outputs for a different range of input variables. It allows them to learn the significance of different quantities involved in the formulas. It also helps the students to apply their level of understanding to some advanced concepts in astrophysics.