Use the form below to do your conversion.
Solution
Step1
Log215=Log(5) ÷ Log(21)
Log(5)= 0.69897000433602
Log(21)=1.3222192947339
Log215=0.69897000433602 ÷ 1.3222192947339
Ans=0.52863394681945
Step2
Alternatively, the logarithm can be calculated like this.