This interactive workspace contains 18 calculators for navigation, weather, energy, payload, power, RF and mission planning. Run an individual calculation or use a local aircraft profile to carry supported values between tools.
Choose a task
Open a tool, enter your values, then calculate and review the results. You can use every calculator without setting up a profile.
Browse all calculators
Select a calculator card to include it in your profile checks; select it again to remove it. Choose Open calculator to enter values directly.
Optional: use a saved aircraft profileSave shared values and run the selected profile checks. Open
Choose or create a profile, select the calculator cards you want in the list, then run the checks. Tools needing a route, weather or other task-specific inputs provide a link to their own page.
Create or edit profile parameters
Link route, wind and mission fuel
Build an ordered waypoint route with separate speed, wind and fuel flow for every leg, or use a two-point route. Review the proposed phases before applying them. Selected profile fuel checks remain quick estimates; the linked mission plan uses its own phase inputs.
Route drafts stay in this browser tab. Waypoint coordinate fields stay on the route page; leg names, derived distances, bearings and settings are transferred.
18 calculators
WGS84 Coordinate Converter
Convert WGS84 decimal latitude and longitude into DMS, DDM and standard UTM coordinates.
Distance, Bearing and Destination Calculator
Build a multi-waypoint route with separate winds, speeds and fuel flows per leg, or convert coordinates and bearings.
METAR Decoder and UAS Weather Risk Tags
Decode common METAR groups and compare wind, visibility and cloud against entered UAS planning thresholds.
Crosswind, Headwind and Tailwind Calculator
Calculate sustained and gust crosswind, headwind and tailwind, with separate aircraft wind and component limits.
Battery Pack Builder
Calculate pack voltage, capacity, energy, mass, specific energy and C-rating current from cell configuration.
Centre of Gravity and Moments Calculator
Calculate total mass, longitudinal moment, centre of gravity and margins against an entered CG envelope and MTOW.
Survey Flight Line and Battery Estimator
Estimate survey line spacing, line count, track distance, turn time, total flight time and battery count.
Battery Runtime Calculator
Estimate runtime, usable energy and average electrical power from battery capacity, voltage and load current.
Electric UAS Flight Endurance Estimator
Estimate electric-flight endurance from battery energy, representative current draw, auxiliary load and operational reserve.
Mission Fuel Planner and Endurance Calculator
Import a full waypoint route, use separate winds and speeds per leg, and automatically total mission fuel and reserves.
Payload and MTOW Budget Calculator
Calculate available payload mass and MTOW margin after platform, energy, fixed-equipment and contingency allowances.
Electrical Power Budget Calculator
Build a multi-component average and peak electrical power budget with source limits and engineering reserve.
SWaP Budget Calculator
Track size, weight and average/peak power across an integrated payload or subsystem against platform allowances.
RF Link Budget Calculator
Estimate free-space received power, EIRP and link margin using explicit gains, losses, sensitivity and fade margin.
First Fresnel Zone Calculator
Calculate first-Fresnel-zone radius and the commonly used 60% clearance target at a selected point on a path.
Radio Horizon Calculator
Estimate combined radio line-of-sight horizon from transmitter/receiver heights and an effective-Earth-radius factor.
Air Density and Density Altitude Calculator
Estimate pressure altitude, ISA temperature, dry-air density, density ratio and density altitude from elevation, QNH and OAT.
IPv4 Subnet Calculator
Convert an IPv4 address and CIDR prefix into network, broadcast, mask, wildcard and usable-host ranges.
Profile assessment
Calculations run locally. Profiles remain in this browser unless exported.
Use, evidence and limitations
These calculators are planning aids, not design approval, operational authorisation or certified performance data.
- Use traceable source values where possible.
- Review each calculator’s formula basis and limitations.
- Record assumptions with any decision or report.
- Replace estimates with measured configuration data as evidence matures.
- Use competent engineering, operational and regulatory review before implementation.