Log Calculator
In mathematics, the logarithm of a number to a given base is the power or exponent to which the base must be raised in order to produce that number.
If x=b^{y}, then y = log_{b}(x)
where b is the base.
Please provide any one value of the following to calculate the other one.
= log  
base:
e
10
2
other


Basic Log Rules
log_{b}(x·y) = log_{b}(x) + log_{b}(y)
log_{b}(x/y) = log_{b}(x)  log_{b}(y)
log_{b}(x^{y}) = y·log_{b}(x)
log_{b}(x) = log_{k}(x)/log_{k}(b)