ISO/ILO Lost Time Injury Frequency Rate. Based on ILO / ISO 45001:2018. Results shown with the full formula so you can verify. Zero signup, zero tracking, zero data sent to a server — all calculation is client-side.
{
"rate": 6,
"base": 1000000,
"formula": "(3 × 1,000,000) ÷ 500,000"
}LTIFR (Lost Time Injury Frequency Rate) is the international equivalent of LTIR — ISO 45001:2018 / ILO / IOGP standard — using a 1,000,000-hour base. Required by HSE UK reporting, Aramco / ADNOC / QatarEnergy contractor prequalification, and ISO 45001 Clause 9.1 management review.
IOGP reports global oil & gas LTIFR at 0.21 per million hours (2023), with Middle East at 0.16 — the lowest of any region. World-class LTIFR across non-oil-and-gas industries is below 1.0. Our calculator shows both LTIFR and the equivalent OSHA LTIR so you can report to every audience.
LTIFR = (Lost Time Injuries × 1,000,000) ÷ Hours WorkedILO / ISO 45001:2018
12 million hours on a major Aramco / ADNOC project. 2 lost-time injuries. LTIFR = (2 × 1,000,000) ÷ 12,000,000 = 0.17. Top-tier performance — matches IOGP Middle East regional average.
Lost Time Injury Frequency Rate — LTIs per million hours worked. International safety standard (ISO 45001 / ILO / IOGP).
IOGP global: 0.21 (2023). Middle East region: 0.16. Europe: 0.25. World-class across industries: <1.0.
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