flight level (FL) to meters Converter
Convert flight level (FL) to meters instantly with a reference conversion table.
| flight level (FL) | meters |
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How to convert flight level (FL) to meters
Enter your value
Type the number of flight level (fl) you want to convert into the left box. The result in meters appears instantly in the right box. You can also type into the right box to convert in the other direction.
Use the swap button
Click the ⇄ Swap button to reverse the conversion — meters to flight level (FL). Your current value carries across so you don't have to re-enter anything.
About flight level (FL) and meters
A flight level is a standardized pressure altitude used in aviation, expressed in hundreds of feet above the point where every altimeter is set to a common reference pressure of 1013.25 hPa. Converting flight level to meters is a straightforward multiplication (flight level × 100 × 0.3048), but the number itself represents pressure altitude, not a directly measured height — it's a shared reference that keeps aircraft correctly separated in the high-altitude airspace where local barometric pressure varies from place to place.
Flight levels for pilots, engineers, and researchers
Reading charts and NOTAMs
Aeronautical charts, NOTAMs, and ATC clearances reference cruising altitude almost exclusively by flight level ("climb and maintain FL370"), not feet or meters. Converting to meters is useful when cross-referencing with metric-altitude documentation, older Russian or Chinese charts, or scientific instruments and weather balloons that report height in meters.
Typical cruising flight levels
Short-haul narrowbody jets often cruise around FL350–FL390 (about 10,670–11,890 meters), while long-haul widebody aircraft can reach FL410–FL430 (about 12,500–13,100 meters) once lighter on fuel late in a flight. General aviation piston aircraft usually stay below FL180 (about 5,490 meters), since pressurization and oxygen requirements kick in above that.
The transition altitude matters
Below the transition altitude, aircraft use local QNH pressure settings and report altitude in feet (or meters) above sea level, not flight levels. Above it, everyone switches to the standard 1013.25 hPa setting and flight levels. The transition altitude itself varies by country and airport — from around 3,000 feet in parts of Europe to 18,000 feet across the entire continental US — so the same physical altitude might be described as a flight level in one country's airspace and a plain altitude in another's.
| flight level (FL) | meters |
|---|---|
| 100 | 3048 |
| 200 | 6096 |
| 300 | 9144 |
| 350 | 1.067e+04 |
| 370 | 1.128e+04 |
| 390 | 1.189e+04 |
Frequently asked questions
How do I convert flight level (FL) to meters?
To convert flight level (FL) to meters, multiply by 30.48. Or use the calculator above for instant results.
How many meters are in 1 flight level (FL)?
1 flight level (FL) equals 30.48 meters.
Is the flight level (FL) to meters converter free?
Yes, the flight level (FL) to meters converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.
What does a flight level actually measure?
A flight level is not your true height above the ground or sea level — it's a pressure altitude. Every aircraft altimeter above the transition altitude is set to a standard pressure of 1013.25 hPa (29.92 inHg), and the flight level is that reading in hundreds of feet. FL350 means the altimeter reads 35,000 feet on the standard setting, regardless of the actual local air pressure that day.
Why do pilots use flight levels instead of feet or meters?
Flight levels give every aircraft in a region the same reference frame. If every pilot sets their altimeter to the same standard pressure rather than the day's actual local pressure, two aircraft both flying "FL330" are guaranteed to be at the same height relative to each other. Below the transition altitude, aircraft switch back to local pressure settings and altitude is given in feet or meters above sea level instead.
Why are flight levels written as FL350 instead of 35,000 feet?
Flight levels are always expressed in hundreds of feet with the last two zeros dropped — FL350 is 35,000 feet, FL410 is 41,000 feet. This shorthand is spoken as "flight level three five zero" over radio, which is faster and less error-prone than the full number. Commercial jets typically cruise between FL310 and FL410 (roughly 9,450–12,500 meters).
Do all countries use feet-based flight levels?
Almost all countries use feet-based flight levels as standardized by ICAO, even nations that use metric units for everything else. China, Russia, Mongolia, and North Korea are notable historical exceptions that used meter-based altitude systems, though China transitioned most of its airspace to the standard feet-based system in the 2010s to align with international traffic.