Free Workplace Safety Calculators
Quick answers to the numbers owners get asked for on bids, insurance renewals and OSHA paperwork. Every tool is free to use and you don't need an account.
Safety Team's free calculators turn the records you already keep into the figures customers and insurers ask about. Start with the TRIR calculator, which works out your recordable, DART and lost-time incident rates from your OSHA 300 log and total hours worked.
The Safety Numbers Small Businesses Get Asked For
Four figures come up again and again on prequalification forms and renewal paperwork. Three of them come straight from your OSHA records. The fourth doesn't, which is where a lot of the confusion starts.
| Figure | What it counts | Where the inputs come from |
|---|---|---|
| TRIR | Every OSHA-recordable injury and illness, per 100 full-time workers. | OSHA 300 log case total and payroll hours. |
| DART rate | Only cases with days away from work, restricted duty or a job transfer. | The same log and payroll hours. |
| LTIR | Only cases with days away from work. | The same log and payroll hours. |
| EMR | How your workers' compensation claims compare with similar businesses. | Your insurer or rating bureau. Not your OSHA log. |
The TRIR calculator works out the first three in one go and compares them with the Bureau of Labor Statistics average for your industry. EMR is set by your workers' compensation rating bureau, so no calculator here produces it.
What to have in front of you
- Your OSHA 300A summaryfor the year, or the 300 log if the year isn't closed yet. It has the case totals. Our guide to the 300, 300A and 301 forms shows which column is which.
- Total hours worked from payroll for the same period. Include overtime. Leave out vacation, sick leave and holidays.
- Your industry, so the comparison is against businesses like yours and not the whole economy.
When it's worth running the numbers
- At year end. You already total the log for the 300A, which has to be posted from February 1 to April 30. The rate takes one more minute.
- Before a bid.Prequalification forms often ask for the last three years, so keep each year's figure on file.
- Before an insurance renewal. Walking in with your own numbers and a trend is a stronger position than waiting to be told.
- Each quarter. Not for reporting, just to notice a bad run while there is still time to act on it.
A rate is a result, not a plan. If the number is higher than you'd like, the work is in training and hazard reporting, which is what our safety compliance platform handles for you.
Where These Calculators Get Their Numbers
Safety Team Technologies runs safety training and recordkeeping for small businesses in construction, manufacturing and warehousing, so these are the figures our customers get asked for most. Every calculator follows the same rules.
- The formula is the published one, and the page shows it with a worked example.
- Benchmarks come from Bureau of Labor Statistics injury and illness data, and regulations are read from the eCFR text of 29 CFR Part 1904.
- Each page states the data year and the date it was last checked, and we refresh it when the source updates.
- Nothing here is legal advice. For a specific recording decision, go to the standard or your OSHA area office.
Safety Calculator FAQs
Are the safety calculators really free?
Yes. You don't need an account, and the calculator shows your result on the page without asking for contact details. Under the result there is an optional OSHA compliance checklist download, which does ask for a work email. Skip it if you only want the rate.
Where do the benchmark figures come from?
Industry averages come from the Bureau of Labor Statistics Survey of Occupational Injuries and Illnesses, and the rules we describe come from 29 CFR Part 1904 in the eCFR. Each calculator page names its sources and the date they were last checked.
Are these calculators a substitute for my OSHA 300 log?
No. They do arithmetic on the records you already keep. The 300 log, 300A summary and 301 incident reports are still the official records, and your own judgement and the standard decide what is recordable.
How often should I recalculate my incident rates?
At least once a year, when you total the columns on your OSHA 300 log for the 300A summary. Many owners also run the numbers each quarter to spot a trend early, and again before a bid or an insurance renewal so the figure they hand over is current.
Do I need my NAICS code to use the calculators?
No. Your own rate only needs your case counts and hours worked. The NAICS code matters when you compare yourself with an industry average, because BLS publishes its rates by NAICS industry. You can find the code on your OSHA 300A or your business tax filings.
Can I use the calculators if I have fewer than 11 employees?
Yes. Employers with 10 or fewer employees are partially exempt from keeping a routine OSHA 300 log (29 CFR 1904.1), but customers and insurers may still ask for a rate. Count the injuries that would have been recordable and use your payroll hours. Remember that on a very small payroll one case moves the rate a long way.
Numbers Are the Start. Training Moves Them.
Safety Team schedules, delivers and records your crew's safety training, with text reminders and a web portal or mobile app. See how it works in 10 minutes.