Welcome to Eva-Calc

📐 You can use simple use calculator

📐 You can solve quadratic equation

📐 You can calculate hypotenuse of triangle

📐 You can calculate area of sphere

About Eva-calc

Eva-calc is a website that you can calculate simple mathematical things. Eva-calc is made for educational purposes not financal purposes

Simple Calculator

Enter a number and calculate !

Num 1

Num 2

Quadratic Equation Solver

In algebra, a quadratic equation is any equation that can be rearranged in standard form as ax²+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. (From wikipedia)

Enter A,B and C values

A :

B :

C :

Pythagorean theorem

In geometry, a hypotenuse is the longest side of a right-angled triangle

Enter the value of two sides of triangle

Side one :

Side Two :

Find Area of sphere

The surface area of a sphere of radius r is: A= 4.𝛑.r²

Enter the radius of sphere

Radius :