# Daily Safety Moment

> Free, OSHA-focused workplace safety resources for safety professionals: interactive
> safety calculators, plain-language safety topics, toolbox-talk guides, and a safety
> glossary. Content is bilingual (English and Mexican Spanish, under /es). Regulatory
> claims reference OSHA, NIOSH, ANSI/ASSP, and BLS sources. Calculators support
> planning and discussion — they do not replace a competent person's judgment or
> compliance determinations.

## Safety calculators (most-used tools)

- [TRIR Calculator](https://dailysafetymoment.com/tools/trir-calculator): Calculate the OSHA Total Recordable Incident Rate and DART rate. Formula: recordable cases × 200,000 ÷ hours worked.
- [Ladder Angle Calculator (OSHA 4-to-1 rule)](https://dailysafetymoment.com/tools/ladder-safety-calculator): Find the correct extension-ladder base distance and ~75° setup angle. For every 4 ft of height, the base sits ~1 ft from the wall.
- [Crane Swing Radius Tool](https://dailysafetymoment.com/tools/crane-swing-radius-tool): Determine a crane's swing-radius hazard zone. The swing radius mark identifies where the rotating superstructure, counterweight, boom, or load may move; workers must stay outside it.
- [5x5 Risk Assessment Matrix Tool (JHA/HIRA)](https://dailysafetymoment.com/tools/risk-assessment-matrix-tool): Score likelihood (1-5) × severity (1-5) for a 1-25 risk score with Low/Medium/High/Extreme bands.
- [Minimum Approach Distance (MAD) Calculator](https://dailysafetymoment.com/tools/mad-calculator): Estimate OSHA minimum approach distances for energized high-voltage work (29 CFR 1910.269 / 1926 Subpart V).
- [Fall Clearance Calculator](https://dailysafetymoment.com/tools/fall-protection-calculator): Estimate required fall clearance from free fall, deceleration distance, harness stretch, worker height, and safety factor.
- [Noise Exposure Calculator](https://dailysafetymoment.com/tools/noise-exposure-calculator): Estimate an 8-hour time-weighted average (TWA) noise dose against the OSHA 90 dBA PEL and 85 dBA action level (29 CFR 1910.95).
- [NIOSH Lifting Equation Calculator](https://dailysafetymoment.com/tools/niosh-lifting-equation-calculator): Compute the Recommended Weight Limit (RWL) and Lifting Index (LI) using the 1994 revised NIOSH equation.
- [Arc Flash Calculator](https://dailysafetymoment.com/tools/arc-flash-calculator): Estimate incident energy (cal/cm²), arc flash boundary, and NFPA 70E PPE category.
- [Heat Stress Calculator](https://dailysafetymoment.com/tools/heat-stress-calculator): Estimate heat-stress risk from WBGT and conditions.
- [Confined Space Ventilation Calculator](https://dailysafetymoment.com/tools/confined-space-ventilation-calculator): Calculate air exchanges and fan run time before confined-space entry.
- [Excavation & Trenching Calculator](https://dailysafetymoment.com/tools/excavation-trenching-calculator): Support sloping/benching and protective-system planning.
- [Job Hazard Analysis (JHA) Form](https://dailysafetymoment.com/tools/jha-form): Build and export a JHA / JSA.
- [Pre-Task Plan (PTP) Form](https://dailysafetymoment.com/tools/ptp-form): Build and export a pre-task plan.

## In-depth guides

- [How to Calculate TRIR Using the OSHA Formula](https://dailysafetymoment.com/blog/understanding-trir-calculation): TRIR formula, worked examples, benchmarks, and recordkeeping.
- [Ladder 4-to-1 Rule: How to Set the Correct Ladder Angle](https://dailysafetymoment.com/blog/ladder-4-to-1-rule-angle-setup): The 4-to-1 rule, base-distance examples, field angle checks, OSHA 1926.1053.
- [Crane Swing Radius Hazards That Lead to Struck-By Injuries](https://dailysafetymoment.com/blog/crane-swing-radius-struck-by-hazards): Why the rotating superstructure is a struck-by/caught-between hazard and how to barricade the exclusion zone (OSHA 1926.1424).
- [5x5 Risk Matrix Examples for Job Hazard Analysis](https://dailysafetymoment.com/blog/5x5-risk-matrix-examples-jha): Worked construction, warehouse, maintenance, and office examples with the hierarchy of controls.
- [Fall Clearance Calculation for Fall Protection Planning](https://dailysafetymoment.com/blog/fall-clearance-calculation-guide): The clearance formula, anchor-location effects, lanyard vs SRL, OSHA 1926 Subpart M / ANSI Z359.

## Sections

- [Safety Tools index](https://dailysafetymoment.com/tools): All free safety calculators and forms.
- [Safety Topics](https://dailysafetymoment.com/topics): Plain-language toolbox-talk topics across hazards and industries.
- [Safety Blog](https://dailysafetymoment.com/blog): In-depth safety guides and analysis.
- [Safety Glossary](https://dailysafetymoment.com/glossary): Definitions of common OSHA and safety terms.
- [Spanish site (Español)](https://dailysafetymoment.com/es): Bilingual content under /es.