Free Online Calculators

Pythagorean theorem calculator: The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. Mathematically, it can be expressed as: c^2 = a^2 + b^2 where…

Read more

percentage increase/decrease calculator: To calculate the percentage increase or decrease, you need to find the difference between the two values, divide it by the original value, and multiply by 100%. The formula is: Percentage change = ((new value – old value) / old value) x 100% Here’s an example: Suppose you earned $2,500 last…

Read more