Use the form below to do your conversion.
Solution
Step1
Log25685=Log(685) ÷ Log(25)
Log(685)= 2.8356905714924
Log(25)=1.397940008672
Log25685=2.8356905714924 ÷ 1.397940008672
Ans=2.028478013292
Step2
Alternatively, the logarithm can be calculated like this.