Free Subjects to Study at Khan Academy

Khan Academy is a great website, where you can find a lot of courses on any subject, and all of them are totally free. This site will be handy both for school students, college or university, and those, who just want to broaden their knowledge of a certain subject. Buying an essay on a similar topic will help you to succeed in writing actual disciplines and sciences.


If you do not understand the topic in Physics or you simply need some custom essay writing help, Khan Academy is a perfect choice. Every course here consists of a certain number of video lessons with easy-to-understand explanations and only key information on the topic. You can find the list of categories and subjects, which are available at Khan Academy below.

Math by Subject

If you are still a beginner learner of math, you will be happy to know that there is an opportunity to study Early Math and Arithmetic, including counting, addition and subtraction, fractions and even basics of geometry). If you are in a secondary or high school, and you are confused with all these complicated topics, such courses as Algebra, Trigonometry, Calculus and Linear Algebra will definitely be handy for you. The full list of Math courses is as following:

  • Early Math;
  • Arithmetic;
  • Pre-algebra;
  • Algebra;
  • Geometry;
  • Trigonometry;
  • Precalculus;
  • Statistics & Probability;
  • Calculus;
  • Differential equations;
  • Linear algebra;
  • Math for fun and glory

Math by Grade

This category is created for those, who are still in school and learn Math according to a school curriculum. You can just choose the grade, you are in, and take advantage of a full list of topics, which you should learn during one academic year. There is a separate page for Kindergarten Math, 1st-8th grades, and High School Math.

Science and Engineering

Science and Engineering category includes such subjects as:

  • Physics
  • Chemistry
  • Organic Chemistry
  • Biology
  • Health & medicine
  • Electrical engineering
  • Cosmology & astronomy


This collection of video lessons is suitable not only for those students, who are still in high school but also for those, who are studying at college or want to get the understanding of how our world works.

For example, you can get low-down on school Physics, and even get preparation materials for Physics 1 exam. In addition to that, you can learn the structure and features of a human body or watch Home-made robots or Lego robotics course on leisure.


It is extremely important to know computer well in our era of information technologies, that is why, you can take advantage of courses on Khan Academic, which will help you to learn coding and computer animation. Here is what, you can find in the Computing category:

  • Computer programming
  • Computer science
  • Hour of Code
  • Computer animation


Arts and Humanities

Our life is full of pleasant moments, and a lot of them are created with the help of different arts. Khan Academy gives you an opportunity to enrich your knowledge in this sphere and learn more about famous artists, movements, and styles. Thus you can complete the courses in Art History and Music. You can also get into the subject of World and US History, as well as improve your grammar with Khan Academic.

Economics and Finances

Economics is not only about buying and selling things, it is also about how to make money. Thus, it is essential to know at least basics of this subject whatever your major is. Choose from:

  • Microeconomics;
  • Macroeconomics;
  • Finance & capital markets;
  • Entrepreneurship;

to understand the market, and, maybe, even try yourself in the business of any kind.

What is more, there is an opportunity to prepare SAT, MCAT, GMAT, IIT JEE and NCLEX-RN with the help of excellent educational videos.