1. What is Lost Time Injury Frequency Rate?

The Lost Time Injury Frequency Rate (LTIFR) is a safety performance metric that shows how many lost time injuries occur per 200,000 hours worked. It's a standard measure used to compare safety performance across different organizations and industries.

2. How Does the Calculator Work?

The calculator uses the LTIFR formula:

Where:

• \( LTI \) — Number of lost time injuries
• \( Hours \) — Total hours worked by all employees
• 200,000 — Base hours (equivalent to 100 employees working 40 hours/week for 50 weeks)

Explanation: The 200,000 hour base represents 100 employees working full-time for one year, allowing for standardized comparison across organizations of different sizes.

3. Importance of LTIFR Calculation

Details: LTIFR is crucial for measuring workplace safety performance, identifying trends, benchmarking against industry standards, and meeting regulatory reporting requirements.

4. Using the Calculator

Tips: Enter the number of lost time injuries and total hours worked by all employees during the reporting period. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What counts as a lost time injury?
A: A lost time injury is any work-related injury that results in an employee being unable to perform their regular job duties for at least one full day beyond the day of the injury.

Q2: What is a good LTIFR value?
A: Lower values are better. Industry benchmarks vary, but generally an LTIFR below 1.0 is considered good, while above 5.0 indicates significant safety issues.

Q3: How often should LTIFR be calculated?
A: Typically calculated monthly or quarterly for ongoing monitoring, and annually for formal reporting and benchmarking.

Q4: What's the difference between LTIFR and TRIFR?
A: TRIFR (Total Recordable Injury Frequency Rate) includes all recordable injuries, while LTIFR only includes those resulting in lost work time.

Q5: Why use 200,000 hours as the base?
A: This standard base allows for comparison across organizations of different sizes by representing what the injury rate would be for 100 full-time employees.