Use the form below to do your conversion.
Solution
Step1
Log2018109=Log(18109) ÷ Log(20)
Log(18109)= 4.2578944687308
Log(20)=1.301029995664
Log2018109=4.2578944687308 ÷ 1.301029995664
Ans=3.272710454733
Step2
Alternatively, the logarithm can be calculated like this.