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Smart Calculator
📱 Mobile Calculation Tools
Fast, accurate calculations on-site. Verify crane capacity and sling tension instantly—reducing errors and improving safety.
95%
Accuracy vs manual
75%
Time saved
Crane Capacity
Sling Tension
Load Weight (kg)
Rigging/Hook Weight (kg)
Crane Capacity at Radius (SWL)
Check Safety
CALCULATING
0
%
Total Load
0
kg
Remaining
0
kg
Weight of Load (kg)
Number of Sling Legs
2 Legs
1 Leg (Vertical)
3 Legs
4 Legs
Sling Angle (from Horizontal)
90° (Vertical) - Factor 1.000
85° - Factor 1.003
80° - Factor 1.015
75° - Factor 1.035
70° - Factor 1.064
65° - Factor 1.103
60° - Factor 1.154
55° - Factor 1.220
50° - Factor 1.305
45° - Factor 1.414
40° - Factor 1.555
35° - Factor 1.743
30° - Factor 2.000
Calculate Tension
RESULT
Tension Per Leg
0
kg
Load Factor used
1.000
Share of Load
0
kg
*Ensure your sling SWL exceeds the tension per leg.