Injury Index Calculator

✖Injury Frequency Rate defines the number of disabling injuries per one lakh man hours worked.ⓘ Injury Frequency Rate [I_r]			+10% -10%
✖Injury Severity Rate defines the number of days lost time due to injury for 1000 man hours worked.ⓘ Injury Severity Rate [R_i]			+10% -10%
✖Number of Disabling Injuries refers to the injuries that result in either death or permanent disability, or temporary total disability after the day of injury.ⓘ Number of Disabling Injuries [I_n]			+10% -10%

✖Injury Index gives the overall picture of injuries signifying both frequency and severity.ⓘ Injury Index [II]

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Injury Index Solution

STEP 0: Pre-Calculation Summary

Formula Used

Injury Index = Injury Frequency Rate*Injury Severity Rate*Number of Disabling Injuries/1000
II = I_r*R_i*I_n/1000
This formula uses 4 Variables

Variables Used

Injury Index - Injury Index gives the overall picture of injuries signifying both frequency and severity.
Injury Frequency Rate - Injury Frequency Rate defines the number of disabling injuries per one lakh man hours worked.
Injury Severity Rate - Injury Severity Rate defines the number of days lost time due to injury for 1000 man hours worked.
Number of Disabling Injuries - Number of Disabling Injuries refers to the injuries that result in either death or permanent disability, or temporary total disability after the day of injury.

STEP 1: Convert Input(s) to Base Unit

Injury Frequency Rate: 800 --> No Conversion Required
Injury Severity Rate: 18 --> No Conversion Required
Number of Disabling Injuries: 20 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

II = I_r*R_i*I_n/1000 --> 800*18*20/1000

Evaluating ... ...

II = 288

STEP 3: Convert Result to Output's Unit

288 --> No Conversion Required

FINAL ANSWER

288 <-- Injury Index

(Calculation completed in 00.004 seconds)

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Credits

Created by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

Chandana P Dev has created this Calculator and 500+ more calculators!

Verified by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has verified this Calculator and 700+ more calculators!

< Construction Safety Management Calculators

Number of Disabling Injuries given Frequency Rate

LaTeX Go Number of Disabling Injuries = Injury Frequency Rate*Man Hour/100000

Number of Man-Hour Worked given Frequency Rate

LaTeX Go Man Hour = Number of Disabling Injuries*100000/Injury Frequency Rate

Injury Frequency Rate

LaTeX Go Injury Frequency Rate = Number of Disabling Injuries*100000/Man Hour

Injury Severity Rate

LaTeX Go Injury Severity Rate = Lost Days*1000/Man Hour

Injury Index Formula

LaTeX Go

Injury Index = Injury Frequency Rate*Injury Severity Rate*Number of Disabling Injuries/1000
II = I_r*R_i*I_n/1000

What are the Approaches to Improve Safety in Construction Field?

Many rules and recommendations have been laid down as the result of research by societies, organizations and institutions on how to improve safety. Recognizing the importance of safety performance, a contractor can approach the problem in four different ways.
1 Organizational approach
i. Safety departments
ii. Committee
iii. Field Procedures
iv. Incentives
v. Safety Cost
2 Physical Approach
3 Economic incentives
4 Behavioral Approach

What is Disabling Injury?

The disabling injury means an injury which causes a loss of working time beyond the term, shift or day during which the injury occurred. Thus injury-frequency rate denotes how frequently accidents occurred. Bat it does not take into account the time lost because of an injury.

How to Calculate Injury Index?

Injury Index calculator uses Injury Index = Injury Frequency Rate*Injury Severity Rate*Number of Disabling Injuries/1000 to calculate the Injury Index, The Injury Index formula is defined as it gives the overall picture of injuries signifying both frequency and severity. An injury here refers to something which makes the workers lose a day. Injury Index is denoted by II symbol.

How to calculate Injury Index using this online calculator? To use this online calculator for Injury Index, enter Injury Frequency Rate (I_r), Injury Severity Rate (R_i) & Number of Disabling Injuries (I_n) and hit the calculate button. Here is how the Injury Index calculation can be explained with given input values -> 288 = 800*18*20/1000.

FAQ

What is Injury Index?

The Injury Index formula is defined as it gives the overall picture of injuries signifying both frequency and severity. An injury here refers to something which makes the workers lose a day and is represented as II = I_r*R_i*I_n/1000 or Injury Index = Injury Frequency Rate*Injury Severity Rate*Number of Disabling Injuries/1000. Injury Frequency Rate defines the number of disabling injuries per one lakh man hours worked, Injury Severity Rate defines the number of days lost time due to injury for 1000 man hours worked & Number of Disabling Injuries refers to the injuries that result in either death or permanent disability, or temporary total disability after the day of injury.

How to calculate Injury Index?

The Injury Index formula is defined as it gives the overall picture of injuries signifying both frequency and severity. An injury here refers to something which makes the workers lose a day is calculated using Injury Index = Injury Frequency Rate*Injury Severity Rate*Number of Disabling Injuries/1000. To calculate Injury Index, you need Injury Frequency Rate (I_r), Injury Severity Rate (R_i) & Number of Disabling Injuries (I_n). With our tool, you need to enter the respective value for Injury Frequency Rate, Injury Severity Rate & Number of Disabling Injuries and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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