Use the form below to do your conversion.
Solution
Step1
Log20115=Log(115) ÷ Log(20)
Log(115)= 2.0606978403536
Log(20)=1.301029995664
Log20115=2.0606978403536 ÷ 1.301029995664
Ans=1.5838972561904
Step2
Alternatively, the logarithm can be calculated like this.