Use the form below to do your conversion.
Solution
Step1
Log216515=Log(6515) ÷ Log(21)
Log(6515)= 3.8139144200486
Log(21)=1.3222192947339
Log216515=3.8139144200486 ÷ 1.3222192947339
Ans=2.8844794772233
Step2
Alternatively, the logarithm can be calculated like this.