Salary to Hourly Conversions. Divide your gross income by your total work hours to convert your salary to an hourly wage. For example, if your gross salary is $41,600 per year and you worked 2,080 during that time, then your hourly wage is $20.f you got a raise or you can't find the number on your work documents, contact the human resources department to request your annual salary. Use your gross income -- salary before taxes are withdrawn -- to convert your wages to an hourly rate. You can also use your paychecks to determine your annual salary.