Use the form below to do your conversion.
Solution
Step1
Log202515=Log(2515) ÷ Log(20)
Log(2515)= 3.4005379893919
Log(20)=1.301029995664
Log202515=3.4005379893919 ÷ 1.301029995664
Ans=2.6137275856246
Step2
Alternatively, the logarithm can be calculated like this.