Use the form below to do your conversion.
Solution
Step1
Log217=Log(7) ÷ Log(21)
Log(7)= 0.84509804001426
Log(21)=1.3222192947339
Log217=0.84509804001426 ÷ 1.3222192947339
Ans=0.63915119328547
Step2
Alternatively, the logarithm can be calculated like this.