Injury rates tell you what already went wrong. They count the accidents after they happen. A site can have a clean record for a year and still be heading for trouble, because nothing is being checked and nothing is being fixed. Leading indicators help you spot that early, while there is still time to act.
Fill in one or more pairs of numbers below, and the calculator will turn them into simple percentages.
What are safety KPIs?
KPI means key performance indicator. It is a number that shows how well you are doing at something that matters. Safety KPIs fall into two groups:
- Lagging indicators: these measure results after the fact, such as the incident rate and the lost time case rate
- Leading indicators: these measure the things you do to prevent harm, such as training, inspections and fixing problems
This calculator covers three leading indicators. They are simple, but they say a lot about the health of a safety system.
The three KPIs
1. Training coverage
Training coverage % = Workers trained / Workers who need training x 100
It shows what share of the people who need a certain training have really received it. A site with 60 percent coverage has four in ten workers doing the job without the training they need.
2. Action closure rate
Action closure rate % = Actions closed / Actions raised x 100
Audits, inspections, incident reports and near misses all produce actions. This rate shows how many of them were really finished. A low rate means that problems are found but not fixed.
3. Inspection completion
Inspection completion % = Inspections completed / Inspections planned x 100
It tells you if the planned checks happened. An inspection that is skipped is a chance to spot a hazard that was lost.
You do not have to fill in all three. Enter the pairs that you have, and leave the others empty.
Worked example
A manufacturing site reviews the last quarter.
- 85 of the 100 workers who need forklift awareness training have completed it. Training coverage = 85 / 100 x 100 = 85%
- 48 safety actions were raised, and 36 are closed. Action closure rate = 36 / 48 x 100 = 75%
- 20 inspections were planned, and 18 were done. Inspection completion = 18 / 20 x 100 = 90%
The picture is useful. Inspections are mostly on track, but one in four actions is still open, and 15 workers are untrained. The next step is clear: close the old actions and book the missing people on the next course.
What are good targets?
Many companies aim for close to 100 percent on all three. In real life, a small gap is normal, because new people join and new actions are raised all the time. What matters most is the trend, and what the gap is made of. Ask these questions:
- Are the missing trained people the ones in the highest-risk jobs?
- Are the open actions overdue, and how serious are they?
- Were the skipped inspections in the areas with the most hazards?
A 90 percent score with no serious gaps is better than a 98 percent score that leaves out the most dangerous task.
Other leading indicators you can track
- The number of near misses reported, where a rising number can be a good sign
- Safety talks and toolbox meetings held
- Safety observations or “stop work” actions raised by workers
- Emergency drills completed
- Your audit score
- Time taken to close serious actions
How to use the KPIs well
- Track every month: a single reading is a snapshot, and a series is a story
- Share the numbers: put them on a notice board and discuss them in meetings
- Give each action an owner and a date: unowned actions stay open for ever
- Look at the quality as well: a training session that no one remembers does not help, even if the box is ticked
- Do not punish the number: if people fear the score, they may close actions without fixing the problem
Step by step
- Choose the KPIs that matter for your site.
- Count the “done” and the “planned” for the same period.
- Enter the pairs in the calculator.
- Read the percentages.
- Find the cause of any gap, and set an action.
- Repeat each month and plot the trend.
Common mistakes
- Counting a “closed” action that was only marked closed on paper
- Comparing different periods, for example this month’s closed actions with last quarter’s raised ones
- Using only lagging indicators and being surprised by accidents
- Setting a target but never checking the trend
- Counting training as done when the person only attended for part of it
- Letting overdue actions sit with no escalation
Linking it to your wider plan
Leading indicators and lagging indicators belong together. If your KPIs go up but your DART rate does not come down, check that your training and actions are aimed at the real causes. To see how much training pays, use the safety training ROI calculator.
Frequently asked questions
What is the difference between a leading and lagging indicator?
A lagging indicator measures an outcome that already happened, like an injury. A leading indicator measures the actions you take to prevent harm, like training and inspections.
How many KPIs should I track?
A few good ones are better than many weak ones. Start with training, actions and inspections, then add more as you need them.
What is a good action closure rate?
Aim as close to 100 percent as you can, with serious actions closed first and on time.
Can I enter only one pair of numbers?
Yes. Fill in the pairs you have, and leave the rest empty.
How often should I review safety KPIs?
Monthly is common for site teams, and quarterly for senior managers.
Learn this properly
Safety performance measurement and leading indicators are covered in NEBOSH, IOSH and OSHA courses. ISH Institutes teaches these in Peshawar. Chat with us on WhatsApp and we will help you pick the right course.