50+ free calculators for pilots — crosswind, density altitude, fuel burn, weight & balance and more. Accurate, instant, no sign-up required.
Every calculator lives under one of six categories. Pick one to jump straight to the tools you need.
One modular toolkit covering the numbers you check before every leg — weather, fuel, weight, and performance.
Resolve headwind and crosswind components instantly, and get density altitude corrected for temperature, pressure, and field elevation.
Plan reserves against burn rate, distance, and headwind before you file.
Plot loaded CG against the envelope for your airframe in seconds.
Convert headings with live variation lookups by region.
Runway-length checks adjusted for weight, wind, slope, and surface condition, cross-referenced against POH tables.
6 are live and fully working right now. The rest are built into the toolkit's structure and shipping on the same layout — filter by category below.
Every calculator in the toolkit follows the same flow — no learning curve between tools.
A look at the kind of insight the toolkit surfaces — usage, response time, and formula coverage across every category.
"I run the crosswind numbers before every pattern lesson with students — it's faster than the E6B and just as accurate."
"Density altitude at a hot, high field is the first thing I check. This gets me the number in seconds, cockpit-side."
"Weight and balance for a fully loaded 172 used to mean a paper worksheet. Now it's two minutes on my phone before startup."
Short explainers behind the formulas — full posts are the next thing we're shipping.
Why sin(angle) is the whole formula, in plain English.
Pressure altitude, ISA deviation, and why hot & high bites performance.
Burn rate, reserves, and how range actually gets calculated.
Moments, arms, and reading a CG envelope without the headache.
50+ calculators, zero sign-up, built for the way pilots actually work.
Browse All CalculatorsEvery formula follows FAA and ICAO reference methods and is checked against POH worked examples. Always cross-check against your aircraft's official performance charts before flight.
No. Every calculator is free to use instantly, with no sign-up or paywall.
The toolkit is fully responsive and built for quick use in the cockpit, flight school, or on the ramp from any device.
Student pilots, commercial pilots, flight instructors, dispatchers, flight schools, and aviation enthusiasts.
Have a feature request? Tell us what to build next →