Your Complete Rigging & Lifting Calculator is here.

Sling Load & Tension Calc is a professional lifting and rigging calculator designed for engineers, riggers, crane operators, and lifting supervisors.

Sling Load & Tension Calc is a complete lifting and rigging calculator app built for engineers, riggers, crane operators, and lifting supervisors who need accurate, safe, and quick calculations in the field or on-site.
Whether you’re managing sling load calculations, determining crane boom angles, or checking safe lifting capacity, this app provides every essential rigging tool in one simple and powerful platform.
Perfect for professionals in construction, mechanical, oil & gas, marine, transport, and industrial projects, this tool ensures your lifting operations are always safe, compliant, and efficient.

⚙️ Safe Lift Calculators
Perform professional-grade lifting and rigging calculations instantly.

Sling Load Weight (Load Calc):
Accurately calculate total sling load, leg tension, and weight distribution for single or multi-leg slings. Avoid overload and ensure balanced lifts every time.

Tail Load (Safe Lift):
Determine the correct tail load balance to prevent tipping or structural stress during complex or large lifting operations.

Wind Speed (Air Speed):
Check safe wind speed limits for cranes, booms, and lifts. Stay compliant with OSHA and industry safety standards for outdoor operations.

% of Capacity (Load Ratio):
Instantly find the percentage of lifting capacity being used, ensuring that all lifting equipment remains within SWL (Safe Working Load) limits.

Boom Clearance (Safe Boom):
Calculate boom angle, clearance height, and working radius to avoid overhead obstructions and maintain crane stability during lifts.

? Load Secure & Transport Tools
Plan and secure heavy loads with precision before lifting or transport.

Transportation (Transport Converter):
Convert, calculate, and plan transport loads for trucks, trailers, or cargo shipments safely and efficiently.

Weight (Weight Module):
Determine total load weight and center of gravity to ensure proper balance and lifting preparation.

Converter (Kg to LBS):
Instantly convert between kilograms and pounds for both sling load and transport calculations, suitable for both U.S. and international use.

? Sling & Crane Safety Calculations

Sling Tension (Capacity Calc):
Compute exact sling leg tension based on load angle, number of legs, and total weight. Prevent sling overload and ensure safe lifting operations.

Sling Length (Load Force):
Find the required sling length or load force needed for your lifting setup to maintain proper load balance.

Crane Power (Crane Tools):
Evaluate crane load charts, boom angles, and lifting radius to optimize crane performance and ensure safe operation.

Forklift Capacity (Carry Cap):
Check forklift lifting limits based on load center, attachment, and total weight. Prevent tip-overs and maintain full operational safety.

? Download Sling Load & Tension Calc Today
Make your lifting and rigging operations safe, smart, and precise.
Take control of your sling load, crane setup, and rigging calculations - all in one powerful, easy-to-use app.