Use the form below to do your conversion.
Solution
Step1
Log20815=Log(815) ÷ Log(20)
Log(815)= 2.91115760874
Log(20)=1.301029995664
Log20815=2.91115760874 ÷ 1.301029995664
Ans=2.2375791630033
Step2
Alternatively, the logarithm can be calculated like this.