### Lost Time Injury Frequency Rate LTIFR : What It Is and

2018 2 28 The total hours worked in this period for all employees was 800,000. LTIFR = 14 / 800,000 = 0.0000175. Then, the number is multiplied by 200,000 to make it easier to use and interpret. LTIFR = 14 / 800,000 x 200,000 = 3.5. With their LTIFR calculated, this company can compare it to the rate for the construction industry as a whole.