Occupational Safety, Health, and Environmental (OSHE) Blog

Near Miss Frequency Rate Calculator

Near Miss Frequency Rate
Calculate Near Miss Frequency Rate (NMFR) to measure workplace safety performance and track near-miss incidents for proactive hazard prevention.

What is NMFR?

Near Miss Frequency Rate (NMFR) is a safety metric that measures the frequency of near-miss incidents per million hours worked.

It helps organizations identify potential hazards before they result in actual injuries or damage, enabling proactive safety management.

NMFR Formula

NMFR =
(Number of Near Miss Incidents × 1,000,000)
Total Hours Worked

Industry Benchmarks

Excellent< 5.0
Good5.0 - 10.0
Average10.0 - 20.0
Needs Improvement> 20.0

Important Notes

A near-miss is an unplanned event that could have resulted in injury, illness, or damage but did not

Encourage a no-blame reporting culture to capture all near-miss incidents

Use consistent time periods for accurate trend analysis

Investigate all near-miss incidents to prevent future occurrences

NMFR Calculator