NIOSH Lifting Equation

Formula and source

RWL = LC × HM × VM × DM × AM × FM × CM. LC (load constant) = 51 lb. Lifting Index LI = weight / RWL; LI > 1 indicates risk.

NIOSH 'Applications Manual for the Revised NIOSH Lifting Equation' (DHHS Publication No. 94-110, 1994) by name.

Audience

This tile is built for restoration and the adjacent professions in the Cross-Trade Utilities group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.

Related tools

• Heat Stress (WBGT and Heat Index)
• Fall Protection Clearance
• OSHA 1910.95 Noise Dose and TWA

Posture

Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.