Field Calculation Aid — Verify Critical Results

Use LoadCalc at your own risk. Independently verify critical inputs, geometry, calculations, load paths, and equipment ratings before use. LoadCalc is not a substitute for qualified rigging knowledge, required engineering, current manufacturer data, applicable standards, or site procedures.

About LoadCalc Studio

A free rigging math tool for studying, practicing, and visualizing the numbers. Built by one dude, for fun, in his spare time — not a professional-grade tool.

Why it exists

Study the math

See how the formulas work, play with the numbers. Great before you tackle it on paper in a training class.

Back up your hand calc

Already worked a problem? Use this to check your answer. Use it to see the steps, then go do it yourself.

Lower the barrier

Rigging math looks scary at first. Interactive diagrams and step-by-step results make it approachable. Think study buddy, not authority.

Mike Donaldson

Rope-access tech, high rigger, and technical climber based in Las Vegas. 20+ years working at height — big walls, arenas, stadiums, production rigging.

Credentials

  • SPRAT Level II Rope-Access Tech
  • IATSE Local 720 High Rigger
  • YOSAR (formerly) High-Angle Rescue

Select Projects

  • MSG Sphere, Las Vegas
  • Allegiant Stadium
  • Hangar One, NASA Ames
  • Formula 1 temporary structures

⚠ Real talk

Don't use this for anything real. It was built by one person, in his free time, after some basic training — not by an engineer. The math is correct to the best of my ability, but that's not saying much. If it matters, talk to a qualified rigger.

Don't use this for anything real. Ever.

Questions? Get in touch