Wingload for Skydiving vs BreakOff

A simple wing load calculator for skydiving. Wing loading is a measurement of how much total weight is supported by how large a wing, and is expressed in pounds per square foot. This tool lets you calculate your wing load using both metric and imperial units. You can also compare your wing loading on different sizes of canopies using the compare feature.

Your jump. Your record. Your progression. BreakOff brings wrist recording, a personal skydiving logbook and detailed post-jump debriefs together. Record on Apple Watch or the free BreakOff app for supported Garmin watches, then review on iPhone after landing. RECORD FROM YOUR WRIST Arm your Apple Watch before boarding. BreakOff detects climb, freefall, canopy and landing, retaining altitude, timing, GPS and heart rate where available, then syncs the record to iPhone. The phone can stay on the ground. Garmin users record with the free Connect IQ app, export original FIT files from Garmin Connect and import up to six together through Logbook +. Transfer is manual. Saving Garmin imports requires Logbook or Pro; full analysis requires Pro. DEBRIEF EVERY PHASE WITH PRO Explore Overview, Freefall, Opening, Canopy and Landing. Inspect linked altitude, horizontal and vertical speed, supported combined-speed, ground glide, descent angle, direction and turning charts. The floating timeline keeps your selected recorded moment at hand as you scroll. View recorded heart rate by phase, opening timing and height loss, and supported Apple Watch wrist-motion evidence. Review flight markers for more precise intervals while preserving the original recording. Evidence labels explain coverage and unavailable readings; missing samples remain gaps. REPLAY AND COMPARE Explore recorded paths in interactive 3D and linked overhead/side profiles. Change viewpoint and playback speed, or switch between recorded and labelled smoothed views. Compare two to four jumps by phase with searchable selection and canopy/source context. YOUR PERSONAL LOGBOOK Browse recent months, a year or all history. Search and filter, correct summary values, add manual entries, record gear and aircraft and export PDF/CSV logs. In-person QR sign-off supports individual and grouped entries. QR sign-off does not replace verification required by your association or dropzone. GEAR, CANOPY PASSPORT AND WATCH CONTEXT — PRO Track owned canopies, current and past linesets, containers, reserve repacks and AAD service dates. Canopy Passport brings linked jumps, service history and supported opening/flight trends together. Stats makes its selected period clear; Home highlights actionable alerts. Choose a landing target on iPhone for straight-line distance and available direction on Apple Watch. A bright white compass surrounds the altitude display, and target distance uses ft or m/km independently of altitude units. This is informational target context, not a route or safe-return prediction. CHOOSE YOUR PLAN Free: your newest ten saved jumps, basic summaries and 2D GPS tracks. Older records remain preserved. Logbook: unlimited records, manual entries, Garmin imports, corrections/search, QR sign-off, exports and backup/recovery controls. Pro: everything in Logbook plus full analysis, comparison, 3D, recorded heart-rate charts, Stats, gear/linesets, linked video, Canopy Passport and advanced Watch features. Existing Pro subscribers keep Pro access. Monthly/yearly auto-renewable plans are available. Apple shows local prices, trial eligibility and renewal terms before purchase. Manage or cancel in Apple Account settings. BACKUP AND PRIVACY Logbook backup/recovery and evidence exports protect your records. Pending Watch recordings and Recording Inbox originals have separate evidence-export routes. Analysis sharing omits exact coordinates by default; location inclusion is your choice. IMPORTANT BreakOff is a tracker and logbook, not a certified altimeter or safety/navigation device. Sensors and GPS can be incomplete. Analytics are informational. Always use certified skydiving instruments and follow training and local procedures. V2 details: https://breakoffapp.com/v2.html Garmin app: https://apps.garmin.com/en-US/apps/10883a54-500f-480b-a8ef-d9bd1f4c08e7 Privacy: https://breakoffapp.com/privacy.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/