Coulomb's law describes the electrical attraction or repulsion between two charged objects. Like charges repel, unlike charges attract. The law is named after the French physicist Charles-Augustin de Coulomb (1736-1806). Use the formula below to calculate the force between charges q_1 and q_2.
What is Encalc?
Encalc is an online scientific calculator. Its strength lies in its ability to handle units and dimensional analysis, to define variables, and its large database of constants. Parenthesis and scientific formulas are also supported.
Encalc can be used for unit conversions and dimensional analysis. To convert from Metric to US Customary Units, try inputting "4 meters to feet" and hit "Calculate". Other conversions are handled similarly.
Parentheses are necessary for many calculations. Encalc supports normal parentheses, e.g. "(2+3)/5". Square brackets are used for matrices and vectors, such as "dot([1,2,3], [-3,1,2])" or "matrix([[x,y],[1,-1]])".
Encalc has a lot of formulas ready that you may find helpful.Gross Profit Markup Calculator
Gross Profit Ratio Calculator
Interest Savings Account Calculator
Loan Payment Calculator
Compound Interest Formula
Newton's Law of Gravitation
See the formulas page for more information.
Define your own variables to get the most out of Encalc. You can type "M" in the first box and "12 grams" in the second box to define "M=12 grams". From there, you only have to refer to M in your formulas.
Encalc has a database of hundreds of physical constants. "The speed of light" and "c" would both be equal to 299800000 m / s. Try other constants - there's a good chance it's in the database. To turn off the database, click Preferences. This is useful when you want to use a constant as a variable in algebra, e.g. "(a+b+c)^2" without using c = the speed of light.