1. What is the Lost Days Calculation?

The Lost Days calculation determines the number of days lost due to workplace injuries based on the injury severity rate and total man hours worked. This metric is crucial for workplace safety analysis and risk management.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Injury Severity Rate — Number of days lost time due to injury for 1000 man hours worked
• Man Hour — Total hours worked to complete a task

Explanation: The formula calculates the actual days lost by scaling the severity rate according to the total man hours worked.

3. Importance of Lost Days Calculation

Details: Calculating lost days helps organizations measure the impact of workplace injuries, assess safety performance, implement preventive measures, and comply with occupational health regulations.

4. Using the Calculator

Tips: Enter the injury severity rate (typically obtained from safety records) and total man hours worked. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is Injury Severity Rate?
A: Injury Severity Rate measures the number of days lost due to workplace injuries per 1000 man hours worked, indicating the severity of injuries.

Q2: How is Man Hour defined?
A: Man Hour represents one hour of work completed by one worker. It's used to measure the total effort invested in a task or project.

Q3: Why divide by 1000 in the formula?
A: The division by 1000 scales the calculation since the injury severity rate is typically measured per 1000 man hours worked.

Q4: What industries use this calculation?
A: This calculation is commonly used in construction, manufacturing, mining, and other industries with significant workplace safety concerns.

Q5: How can organizations reduce lost days?
A: Through comprehensive safety training, proper protective equipment, regular safety audits, and creating a culture of workplace safety awareness.