Official NCEP FB winds/temps via Aviation Weather Center.
Digital ATIS--:--:-- UTC
D-ATIS loads from atis.info when available.
ATIS update time: —
Unofficial convenience source for situational awareness. Live UTC remains beside Digital ATIS in 24-hour format. ATIS Relay remains the preferred provider slot if API access is granted.
More Aviation WeatherOfficial AviationWeather.gov Data API
›
Choose a product. PIREPs use the selected airport as the center point.
AWC limits requests to 100/minute and does not allow browser CORS, so WR Quick Calc uses its own same-origin PHP proxy and conservative server caching.
For situational awareness only. Verify operational weather and ATIS through approved aviation sources before flight.
Airports
FAA directory • Phones • Frequencies • ATC
Favorites
Recents
Search an airport identifier, airport name, or city.
This code shares Airport Notes only. It does not share Cities, weather, calculators,
favorites, dashboard settings, or other WR Quick Calc data. Anyone with this code can view
and edit all notes in this notes set.
Manage Notes Sync
Checking code ownership…
Keeps this notes set, creates a new code, and invalidates the old code. Your other devices must be updated with the new code.
Starts a separate blank notes set with a new code. The current notes set is not deleted.
FAA 28-Day NASR
Published airport and pilot-contact information can change. Confirm operational telephone numbers and frequencies with current FAA publications when needed.
Menu
All sections and app settings.
v70
Start Screen
Customize Bottom Bar
Home, ★ Favorites and Menu stay fixed. Choose up to 4 middle buttons; unused slots disappear and the remaining buttons grow automatically.
Cities
Wx updates when online
—
No cities yet.Tap + Add City to build your weather list.
Local follows your phone location when location access is allowed; its last weather/location stays available offline. Temp and dew point are shown in °F / °C. Baro is mean sea-level pressure. RH is relative humidity. WC applies at ≤50°F with wind ≥3 mph; HI applies at ≥80°F with RH ≥40%. Weather data: Open-Meteo. Radar buttons open the official Aviation Weather Center GFA radar centered on that city.
Speed & Distance per Minute
Enter a speed in knots, mph, feet/sec, meters/sec, or km/h. All conversions update instantly.
2.00 NM/min
Nautical miles traveled each minute
120.0knots
138.1mph
12,152feet/min
3,704meters/min
2.30statute mi/min
3.70km/min
30.0sec per NM
26.1sec per statute mile
Barometer Conversion
Convert altimeter/barometric pressure between hectopascals (hPa / mb) and inches of mercury.
29.92 inHg
1013.25hPa / mb
29.92inHg
Density Altitude
Enter pressure altitude and outside air temperature. The calculator uses standard-atmosphere pressure with actual temperature to determine air density and the equivalent ISA density altitude.
Tap ± to switch between positive and negative temperature.
0 ft
Calculated density altitude
15.0 °CISA temp at PA
+0.0 °COAT vs ISA
1.000density ratio σ
0 mdensity altitude
For flight planning/performance, use the approved AFM/POH and current weather data. Humidity is not included.
TAS
Estimate TAS from calibrated airspeed (or IAS as an approximation), pressure altitude, and OAT using air-density ratio.
Tap ± to switch between positive and negative temperature.
— KTAS
—TAS mph
—TAS km/h
—density ratio σ
—TAS/CAS factor
Best accuracy requires CAS. If you enter IAS, the result does not correct for instrument/position error. This density-ratio method is a practical subsonic estimate and is not a replacement for an aircraft AFM/FMS.
Fuel Calculator
Convert aviation fuel and calculate fuel required or fuel added. All displayed results are whole numbers.
Default fuel entry unitRemember this choice on this device
Fuel Conversion
—US gallons
—liters
—pounds
Jet A planning density: 6.7 lb per US gallon.
Fuel Needed to Add
Enter fuel currently on the aircraft and total fuel required for the trip. The result is how much must be added.
Fuel currently on plane
Fuel required for trip
Enter current fuel and trip fuel.
—gallons to add
—liters to add
—pounds to add
Fuel Added / New Total
Enter fuel already on the plane and the fuel you plan to add. This shows the amount added in all three units and the new total fuel on board.
Fuel currently on plane
Fuel being added
Amount being added
—gallons added
—liters added
—pounds added
New total fuel on plane
—total gallons
—total pounds
Fuel weights use nominal planning densities. Actual density varies with temperature and fuel specification. Use aircraft/operator-approved values when precise loading data is required.
Wind Chill
Enter air temperature and wind speed. Uses the standard U.S. National Weather Service wind-chill formula.
Tap ± to switch between positive and negative temperature.
19 °F
Feels-like temperature from wind chill
19 °Fwind chill
-7 °Cwind chill
15.0wind mph
Validformula range
The standard wind-chill formula applies at 50 °F (10 °C) or colder with wind speeds of at least 3 mph.
Heat Index
Enter air temperature and relative humidity. Uses the NOAA/NWS heat-index equation.
Tap ± to switch between positive and negative temperature.
100 °F
Estimated heat index / feels-like temperature
100 °Fheat index
38 °Cheat index
60%relative humidity
Validformula range
Heat index is intended for warm, humid conditions in shade/light wind. Direct sun can make conditions feel hotter.
Fahrenheit ↔ Celsius
Enter a temperature in either Fahrenheit or Celsius. Negative temperatures are supported.
Tap ± to switch between positive and negative temperature.
0.0 °C
32.0 °FFahrenheit
0.0 °CCelsius
Time
World clocks and time zone converter.
Local—
Current clocksUTC stays fixed in 24-hour time • choose the other two
UTC—
—
Clock 1—
—
Clock 2—
—
Choose the two world clocksUTC remains fixed
——
——
1
FROM
Where is the entered time?
——
Interpreted as —
2
TO
Where do you want the entered time converted?
——
SELECTED DATE/TIME CONVERSION——
—
Local time with seconds stays beside the Time heading. UTC is always fixed in Current clocks; choose the other two world clocks above. The lower section converts any entered date/time between FROM and TO zones.
Local
Date Calculator
Add or Subtract From a Date
—
Calculated date
Date & Duration
Calculate the interval between two dates and times.
—Saturdays + Sundays in the selected period
—
Calendar difference
—total years (avg)
—total months (avg)
—total weeks
—total days
—total hours
—total minutes
—total seconds
—direction
Calendar difference uses whole calendar years and months first. Decimal years/months are averages so you can compare the interval as one number.
Hebrew dates begin at sunset. “Today” uses the civil date on your device; for a birth/event after sunset, use the After Sunset option below.
19-Year Hebrew Calendar Cycle7 leap-month years in each cycle
—
—
Leap years are cycle years 3, 6, 8, 11, 14, 17 and 19. A leap year adds Adar I; the regular Adar becomes Adar II.
Shmita / Sabbatical Cycle7th year = year of release
—
—
Jubilee / Yovel7 × 7 years, then the 50th
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The current Jubilee year is not universally/authoritatively counted today. Use an anchor below if you want to track a particular 50-year model.
No anchor selected.
This tracker uses the model you requested: seven 7-year Sabbatical cycles (49 years), followed by a separate 50th Jubilee year. Other rabbinic views treat the cycle differently.
Date ConverterGregorian and Hebrew side by side
—
—The Hebrew date begins at sunset on the preceding civil evening.
Saved DatesBirthdays, anniversaries and other dates
Saved dates stay on this device. “Next Hebrew” is a calendar match for the same Hebrew month/day; Adar birthday/yahrzeit customs can vary, so the app flags ambiguous Adar mappings rather than making a religious ruling.
Cycle reference: The fixed Hebrew calendar uses a 19-year cycle with seven leap years.
The currently used Shmita count places the next Sabbatical year in 5789.
Jubilee/Yovel is not currently designated or observed with an agreed modern year count.
Loan Calculator
Calculate principal and interest, estimated monthly housing cost, payoff with extra payments, interest savings, and a full amortization schedule.
$
% per year
years
months
$
$
per year
$
per year
$
per year
% per year
$
Used for estimated down payment and loan-to-value.
Property tax, insurance, HOA/fees and PMI are added to the monthly-cost estimate but do not change the principal-and-interest amortization. PMI is estimated as the entered annual percentage of the original loan amount and does not automatically cancel.
