text: how do i convert minutes into a percent? 1 hour and 25 minutes  1.25                                               1 hour and 40 minutes  1.40 into percents divide the minutes you have been given by 60 then multiply by 100   eg 30 minutes would be 30/60 = 0.5 x 100 = 50%  and as 20 minutes is one third of an hour (ie 33.3%) it stands that 20/60x100=33.3%