Strap Load Calculator
Sunferno — Free Automotive Tools
Minimum WLL Per Strap
About This Tool
The Strap Load Calculator tells you the exact Working Load Limit (WLL) each ratchet strap must meet to legally secure your cargo under DOT FMCSA 393.100. Enter your cargo weight, number of straps, and strap angle to get per-strap WLL requirements. Sunferno ratchet straps are rated to exceed DOT requirements for safe, legal hauling.