1. What is Lost Time Incident Rate?

The Lost Time Incident Rate (LTIR) is a safety metric that shows the number of lost time injuries occurring in a workplace per 200,000 hours worked. It's a standardized way to compare safety performance across different organizations or time periods.

2. How Does the Calculator Work?

The calculator uses the LTIR formula:

Where:

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

Explanation: The 200,000 figure represents 100 employees working full-time for one year, providing a standardized benchmark.

3. Importance of LTIR Calculation

Details: LTIR is a key occupational health and safety indicator used to measure and compare workplace safety performance, identify trends, and evaluate the effectiveness of safety programs.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What counts as a lost time incident?
A: Any work-related injury or illness that results in an employee missing work beyond the day of the incident.

Q2: What is a good LTIR value?
A: Lower values are better. Industry benchmarks vary, but many organizations aim for LTIR < 1.0.

Q3: How does LTIR differ from TRIR?
A: TRIR (Total Recordable Incident Rate) includes all recordable incidents, while LTIR only includes those resulting in lost work time.

Q4: What time period should be used?
A: Typically calculated annually, but can be used for any period (monthly, quarterly) for trend analysis.

Q5: Why use 200,000 hours?
A: This standardization allows comparison between organizations of different sizes by representing 100 employees working full-time for one year.