Use the form below to do your conversion.
Solution
Step1
Log21385=Log(385) ÷ Log(21)
Log(385)= 2.5854607295085
Log(21)=1.3222192947339
Log21385=2.5854607295085 ÷ 1.3222192947339
Ans=1.9553947970702
Step2
Alternatively, the logarithm can be calculated like this.