Safe Man-Hour Calculator (LTI / No LTI) – Safety Management Tool

🧮 Safe Man-Hour Calculation Format

✅ No LTI (Zero Incidents)

👷 50 workers

🕒 8 hours/day

📅 30 working days

Calculation:

✅ Safe Man-Hours = 50 × 8 × 30 = 12,000 hours

✔ No Lost Time Injuries Reported

⚠️ With LTI (Injury Occurred)

👷 1 worker injured

🕒 40 hours lost due to LTI

Calculation:

Total Man-Hours = 12,000

Lost Time Hours = 40

⚠️ Safe Man-Hours = 12,000 – 40 = 11,960

⚠ Lost Time Injury Impact Applied

📊 Summary Table

Condition	Total Man-Hours	LTI Hours	Safe Man-Hours
✅ No LTI	12,000	0	12,000
⚠️ With LTI	12,000	40	11,960

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🛠️ How to Use This Tool

1. Enter the number of workers involved in the project.
2. Input daily working hours (e.g., 8 hours/day).
3. Specify the number of working days.
4. Select if any Lost Time Injury (LTI) occurred during the period.
   • If “Yes”, enter the total LTI hours lost due to the incident(s).
5. Click “Calculate Safe Man-Hours” to get:
   • Total man-hours worked.
   • Safe man-hours (adjusted for LTI, if any).
   • Smart safety suggestions based on the outcome.

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🎯 Who Is This Tool For?

This tool is ideal for:

• Safety Officers / HSE Managers
• Site Supervisors / Engineers
• Construction & Industrial Project Leads
• Safety Consultants
• HR & Compliance Officers

Basically, anyone responsible for tracking safety performance and improving workplace safety metrics.

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❓ Why Use This Tool?

✅ Track safety performance quickly
✅ Identify gaps caused by injuries
✅ Plan toolbox talks and corrective actions
✅ Report safe man-hours to management, clients, or regulators
✅ Support ISO, OSHA, or OHSAS compliance

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📈 Benefits of Using This Tool

• Saves time with automatic calculations.
• Reduces errors in manual tracking.
• Helps visualize the safety impact of incidents.
• Promotes data-driven safety planning.
• Improves team accountability and awareness.

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