This free logarithm calculator helps you easily calculate the log of any number with any base. You can enter your desired number and choose the base (for example base 2, base 10, or base e). If no base is given, the calculator automatically uses base 10. It is a simple and fast tool for students, teachers, and professionals who need accurate log values for mathematics, algebra, and scientific calculations. Use this calculator to save time and solve logarithm problems instantly