Use the form below to do your conversion.
Solution
Step1
Log212015=Log(2015) ÷ Log(21)
Log(2015)= 3.3042750504771
Log(21)=1.3222192947339
Log212015=3.3042750504771 ÷ 1.3222192947339
Ans=2.499037083816
Step2
Alternatively, the logarithm can be calculated like this.