Use the form below to do your conversion.
Solution
Step1
Log218315=Log(8315) ÷ Log(21)
Log(8315)= 3.9198622535555
Log(21)=1.3222192947339
Log218315=3.9198622535555 ÷ 1.3222192947339
Ans=2.9646082682104
Step2
Alternatively, the logarithm can be calculated like this.