Drone Area Coverage Calculator
Hectares covered per battery from speed, swath and usable flight minutes — and batteries needed for the whole field or site.
Coverage per battery = speed × swath × usable minutes. It's the number that decides whether the job is one trip or two — before you've left the office.
Turn-around and transit time eat into working minutes — for small irregular fields, derate usable minutes by 15–25%.
With your numbers: With 16.5 usable minutes at 7 m/s and a 5 m swath, each battery covers 3.47 ha — so 40 ha needs 12 battery cycles.
⚠️ Not for operational decisions. This is a record-keeping and planning aid only — not certified avionics, not a source of regulatory truth. Always verify against official sources (FAA) and your operator's approved documents before flying.
Free drone coverage calculator: usable minutes, speed and swath in — hectares per battery and total battery cycles out. The dispatch math for spray, survey and inspection work.
About Drone Area Coverage Calculator
Whether the payload is a spray boom, a mapping camera or a thermal sensor, area work reduces to the same throughput arithmetic: working speed times effective swath times usable minutes equals area per battery. That single figure converts any job into logistics — battery cycles, charger capacity, generator time, hours on site — and it's the difference between quoting from arithmetic and quoting from hope. This calculator runs it with honest inputs: usable minutes after reserve (not brochure endurance), the EFFECTIVE swath (spray width with proper overlap, or mapping line spacing — not the nominal boom width), and your real working speed. The batteries-needed output, checked against your charging throughput, answers the question that actually schedules the day: does this job fit?
How to use Drone Area Coverage Calculator
- 1Enter per-battery flight time and your reserve discipline.
- 2Set working speed and EFFECTIVE swath (after overlap).
- 3Read hectares per battery and cycles needed; check against charging capacity.
Why use Drone Area Coverage Calculator?
- ✓Throughput math shared by spray, survey and inspection work
- ✓Reserve-aware usable minutes, not brochure endurance
- ✓Effective-swath framing prevents the overlap omission
- ✓Battery-cycle count drives charger and generator planning
- ✓Instant, free, browser-only
Frequently asked questions
What's the difference between nominal and effective swath?+
Nominal is the hardware's width claim (boom span, image footprint); effective is what you credit after overlap and edge discipline — spray passes overlap 10-30% for even deposition, mapping lines overlap 60%+ by design, and inspection passes overlap for coverage assurance. Using nominal swath overstates coverage by exactly your overlap fraction, which is how jobs run out of batteries at 80% complete.
How do battery cycles translate into time on site?+
Cycles × (flight minutes + swap time) + charging bottleneck: with three packs and a dual charger, you fly continuously until charging can't keep pace — then the generator/charger throughput, not the drone, sets the schedule. Run this calculator's cycle count against charge time per pack and packs on hand; the bottleneck math is what separates one-day quotes that hold from ones that don't.
Why do small irregular fields underperform the calculation?+
Turns and transits: the formula models productive straight-line work, but every headland turn, obstacle detour and ferry to the next block burns minutes without covering area. Regular large blocks lose ~10%; small scattered paddocks with treelines can lose 30%+. The note's 15-25% derate is the field-tested correction — apply it to usable minutes before quoting tight.
Is this tool private — who can see my entries?+
Only you. Entries live in your browser's local storage and never leave your device, so there is no account, no cloud sync and no one else with access. Because the data is device-local, export a CSV backup before clearing browser data or switching computers.
Can I get my data out if I switch systems later?+
Always — the CSV export is a complete, lossless dump of your coverage plan, generated locally in one click. Import it into commercial software, archive it with your files, or post-process it in a spreadsheet. No lock-in is deliberate: data you can't take with you isn't really yours.
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