Kite Force
Calculate exactly how hard your kite will pull ā and the line strength you need to fly it safely
Download on Google Play
Calculate exactly how hard your kite will pull ā and the line strength you need to fly it safely
Download on Google PlayKite Force calculates the exact pull force your kite will generate under current weather conditions using real aerodynamic principles. Essential for safety planning, line selection, and understanding your kite's performance limits whether you're flying sport kites, single-line kites, or kite aerial photography rigs.
Unlike simple estimators, Kite Force uses the standard aerodynamic equation:
F = Ā½ Ć Ļ Ć VĀ² Ć Cd Ć A
Air density (Ļ) is derived from real-time temperature and pressure via the ideal gas law ā not a sea-level assumption. Drag coefficients (Cd) are tuned per kite type ā Quad-Line (1.6), Parafoil (1.5), Delta (1.2), Box (0.9) ā and adjusted for angle of attack.
Real-time pull force in Newtons, Pounds and Kilograms, with a force table across 10ā30 mph so you see what's coming as wind builds. Automatic line strength recommendations at a 3Ć safety factor, plus worst-case analysis against your kite's rated wind ceiling.
Save your kites with photos ā 5 for free, or unlimited with the one-time Unlimited upgrade. 13 kite types supported: Delta, Box, Parafoil, Diamond, Sled, Rokkaku, Dual-Line, Quad-Line, Bols, Bouncing Buddy, Banner, Line Laundry and a generic Other, each with a tuned drag coefficient and the right measurement fields for its geometry. Track manufacturer, product line, wind rating, cost, and last flown dates.
Auto-fetch current conditions via GPS. Wind speed, direction, temperature, and pressure updated automatically. Interactive Windy.com wind map shows conditions across your area.
Plan your flying sessions ahead of time with detailed weather forecasts. See high/low temperatures and maximum wind speeds for the next 5 days.
Add windsocks, flags, and banners to your force calculations. Choose Small/Medium/Large sizes for accurate additional pull estimation on your line.
Switch units instantly between mph ā m/s, Ā°F ā Ā°C, inHg ā hPa. All calculations and displays update in real-time. Your preferences are saved automatically.
Export/import your entire kite collection in ZIP format with photos preserved. Share individual kite configurations. Auto-backup reminders every 5 app launches.
Start a session and the app records condition snapshots over time with location, so you can compare what a flight actually felt like against what the numbers predicted.
A curated list of upcoming kite festivals and events, sorted by distance from you ā so you never miss one nearby.
All calculations run locally on your device ā the core calculator works anywhere. Live weather, maps and events need a connection. Your kite data stays private on your device.
Plan competition sessions with confidence. Choose the right line strength for varying wind conditions. The forecast feature helps you prepare practice sessions ahead of time.
Fly large show kites safely. Know exactly what forces you're dealing with. Essential for managing multiple-line setups and line laundry trains.
Critical safety tool for KAP rigs. Know exact pull forces before attaching expensive camera equipment. The line laundry calculator accounts for your camera suspension system.
Provide safety recommendations to hundreds of participants based on current conditions. Plan event days with accurate weather forecasts.
Track your entire collection with photos and detailed specs. Know which kites to fly in today's conditions. Monitor your total investment and last flown dates.
Learn kite physics with real calculations. Understand how weather affects performance. See the science behind safe flying practices.
Like all ProDirt apps, Kite Force follows our core principles: