Use the form below to do your conversion.
Solution
Step1
Log121315=Log(1315) ÷ Log(12)
Log(1315)= 3.1189257528258
Log(12)=1.0791812460476
Log121315=3.1189257528258 ÷ 1.0791812460476
Ans=2.890085205102
Step2
Alternatively, the logarithm can be calculated like this.