Wire Rope Sling Calculator – Calculate Sling Capacity

Load & Sling Configuration

Load Weight

Number of Legs

Assumes only 2 legs bear load per industry standard.

Hitch Type

Sling Angle (from horizontal)

Sling Specifications

Rope Construction

Wire Rope Diameter

Custom WLL per Leg (optional)

lbs

Safety Factor

Advanced Derating Factors

Bending Diameter (D)

inches

End Fitting Type

Max Operating Temp

Angle Factor: 1.155 | Tension multiplier: 1.155x

Safety Assessment

PASS - Sling Adequate Utilization: --

Tension Per Leg

lbs

Effective WLL Per Leg (All Deratings)

lbs

Angle Factor (1/sin)

multiplier

Min Breaking Strength Required

lbs

D/d Ratio Efficiency

% of nominal strength

Total Derating Factor

applied to WLL

This calculator provides approximate values based on OSHA 1926.251 & ASME B30.9. Always consult manufacturer data sheets and a qualified rigger for critical lifts. WLL values are estimates for standard wire rope constructions at the selected safety factor.

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