Degrees Fahrenheit per 1,000 feet to kelvins per kilometer
Type a value in °F/1000 ft to get it in K/km instantly.
17.86K/km
That's 1.82× as steep as dry air, while the geothermal gradient is 1.4× steeper. Climbing the 3,800 m from Chamonix to the top of Mont Blanc, that is 67.88 °C colder.
Convert the other way: K/km to °F/1000 ft
What it means
How fast does it cool?
Real lapse rates change with humidity, time of day and weather; inversions make them negative.
The math
How to convert °F/1000 ft to K/km
To convert degrees Fahrenheit per 1,000 feet to kelvins per kilometer, multiply by 1.82269.
Example: 9.8 °F/1000 ft × 1.82269 = 17.8624 K/km.
In the other direction, 1 K/km = 0.54864 °F/1000 ft.
Every unit
Your lapse rate in every unit
Tables
°F/1000 ft to K/km conversion table
| °F/1000 ft | K/km |
|---|---|
| 1 °F/1000 ft | 1.82269 K/km |
| 2 °F/1000 ft | 3.64538 K/km |
| 3 °F/1000 ft | 5.46807 K/km |
| 4 °F/1000 ft | 7.29076 K/km |
| 5 °F/1000 ft | 9.11344 K/km |
| 6 °F/1000 ft | 10.9361 K/km |
| 6.5 °F/1000 ft | 11.8475 K/km |
| 7 °F/1000 ft | 12.7588 K/km |
| 8 °F/1000 ft | 14.5815 K/km |
| 9 °F/1000 ft | 16.4042 K/km |
| 9.8 °F/1000 ft | 17.8624 K/km |
| 10 °F/1000 ft | 18.2269 K/km |
| 15 °F/1000 ft | 27.3403 K/km |
| 20 °F/1000 ft | 36.4538 K/km |
| 25 °F/1000 ft | 45.5672 K/km |
| 30 °F/1000 ft | 54.6807 K/km |
K/km to °F/1000 ft conversion table
| K/km | °F/1000 ft |
|---|---|
| 1 K/km | 0.54864 °F/1000 ft |
| 2 K/km | 1.09728 °F/1000 ft |
| 3 K/km | 1.64592 °F/1000 ft |
| 4 K/km | 2.19456 °F/1000 ft |
| 5 K/km | 2.7432 °F/1000 ft |
| 6 K/km | 3.29184 °F/1000 ft |
| 6.5 K/km | 3.56616 °F/1000 ft |
| 7 K/km | 3.84048 °F/1000 ft |
| 8 K/km | 4.38912 °F/1000 ft |
| 9 K/km | 4.93776 °F/1000 ft |
| 9.8 K/km | 5.37667 °F/1000 ft |
| 10 K/km | 5.4864 °F/1000 ft |
| 15 K/km | 8.2296 °F/1000 ft |
| 20 K/km | 10.9728 °F/1000 ft |
| 25 K/km | 13.716 °F/1000 ft |
| 30 K/km | 16.4592 °F/1000 ft |
Quick answers
Quick answers
- How many K/km is 1 °F/1000 ft?
- 1 °F/1000 ft is 1.82269 K/km.
- How many K/km is 10 °F/1000 ft?
- 10 °F/1000 ft is 18.2269 K/km.
- How many K/km is 9.8 °F/1000 ft?
- 9.8 °F/1000 ft is 17.8624 K/km.
The units
About these units
Degrees Fahrenheit per 1,000 feet (°F/1000 ft)
US pilots and weather briefings.
Kelvins per kilometer (K/km)
The meteorology and geology unit.
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