Wing Loading Calculator for Skydivers
Use this wing loading calculator to calculate parachute wing loading from full exit weight and canopy size. It is a math tool for reference, not a downsizing recommendation engine.
Parachute wing loading calculator
Wing loading is commonly expressed as exit weight divided by canopy size. Enter your body weight and equipment weight separately so the calculator can total the full exit weight used for the wing loading number.
How the wing loading is calculated
- Exit weight:
exit_weight_lb = body_weight_lb + equipment_weight_lb - Wing loading:
wing_loading = exit_weight_lb / canopy_size_sq_ft - Metric loading:
kg_per_m² = (exit_weight_lb × 0.45359237) / (canopy_size_sq_ft × 0.09290304)
Why this matters
- Lower values generally mean a more forgiving canopy, but they do not guarantee a safer landing.
- Downsizing should also account for currency, traffic, turbulence, flare timing, and local policy.
- Manufacturer guidance and instructor feedback should carry more weight than any single number.
Canopy downsizing guidance
Wing loading is only one part of canopy choice. A smaller canopy can increase forward speed, descent rate, flare timing sensitivity, turn rate, recovery arc, and landing consequences after poor decisions.
- Do not downsize based on wing loading alone. Also consider currency, landing consistency, turbulence judgment, traffic awareness, pattern discipline, and instructor feedback.
- Use full exit weight. Include body weight, rig, helmet, suit, lead, camera gear, and any other equipment that is actually on the jump.
- Change one variable at a time. Avoid combining a smaller canopy with a new wing design, new line trim, new harness fit, or unfamiliar weather in the same progression step.
- Validate in conservative conditions. First jumps on any smaller wing should be done in good weather, light traffic, clear outs, and with a structured landing plan.
- Get outside review before downsizing. Consult your instructor, coach, S&TA, canopy course mentor, and the manufacturer guidance for the exact canopy model.
Wing loading calculator FAQ
What is wing loading? The amount of weight carried by a canopy relative to its size.
Why does exit weight matter? Because it reflects the actual load on the wing, not just body weight.
What does a higher number mean? Generally, a more aggressive canopy response and less forgiveness, depending on the canopy design.
Technical references
Primary skydiving reference for canopy progression, landing context, and safety guidance.
Quick mobile access to official SIM material when you are away from a desktop browser.
Useful background on why wing loading must be considered with currency, policy, and conditions.
Supplementary reading on canopy downsizing considerations and progression.
U.S. parachute operations rules for the regulatory context around jumps.
Official aviation weather source used for wind and weather planning reference.
Official forecast and observation source for weather context.
Manufacturer owner's manual and published wing-loading guidance for the exact canopy model.