This calculator is tool to calculate every thing you need only in one single step.
After searching a function, enter the values it will give result.

Besides the basic functions you can get reminder, you can calculate average, you can calculate percentage, you can convert degree into radian and vice versa.
Further you can use this calculator to find area of rectangle, Perimeter of rectangle, Circumference of circle, Area of circle etc.
It can be used to convert Celsius into Fahrenheit and Fahrenheit into Celsius temperature.
And there are many more functions you can use it very easily for.