Free-Flight Calculators & Tools
Free, practical tools for paragliding and free flight — check your wing loading, work out a glide ratio, estimate a sink rate, read a wind window, gauge a thermal's strength, and find a general harness size.
Wing Loading Calculator
Add up pilot, gear, and glider weight and enter your wing area to get your all-up weight and wing loading in kg/m² and lb/ft², plus a general performance-band read
Glide Ratio Calculator
Work out your still-air glide ratio from a distance-and-height reading or an airspeed-and-sink-rate pair, with an optional wind adjustment for your ground glide
Sink Rate Calculator
Estimate your average sink rate in m/s and ft/min from an altitude lost and elapsed time, with a general read on how brisk that descent was
Wind Window & Crosswind Calculator
Split a launch or ridge wind into headwind and crosswind components and check the total speed and crosswind against general guidance bands for your experience level
Thermal Lift & Climb Rate Estimator
Turn an altitude gained and time spent circling a thermal into a climb rate in m/s and ft/min, a general strength read, and a projected time to a further target altitude
Harness Sizing Guide
Get a general harness size suggestion from your height, plus a check of your all-up flying weight against that size's typical certified weight range