convertimate Lapse rate

Degrees Celsius per 1,000 feet to kelvins per kilometer

Type a value in °C/1000 ft to get it in K/km instantly.

32.15K/km

That's 1.29× as steep as the geothermal gradient — nothing on our list beats it. Climbing the 3,800 m from Chamonix to the top of Mont Blanc, that is 122.2 °C colder.

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 °C/1000 ft to K/km

To convert degrees Celsius per 1,000 feet to kelvins per kilometer, multiply by 3.28084.

Example: 9.8 °C/1000 ft × 3.28084 = 32.1522 K/km.

In the other direction, 1 K/km = 0.3048 °C/1000 ft.

Every unit

Your lapse rate in every unit

Tables

°C/1000 ft to K/km conversion table

°C/1000 ft to K/km conversion table
°C/1000 ftK/km
1 °C/1000 ft3.28084 K/km
2 °C/1000 ft6.56168 K/km
3 °C/1000 ft9.84252 K/km
4 °C/1000 ft13.1234 K/km
5 °C/1000 ft16.4042 K/km
6 °C/1000 ft19.685 K/km
6.5 °C/1000 ft21.3255 K/km
7 °C/1000 ft22.9659 K/km
8 °C/1000 ft26.2467 K/km
9 °C/1000 ft29.5276 K/km
9.8 °C/1000 ft32.1522 K/km
10 °C/1000 ft32.8084 K/km
15 °C/1000 ft49.2126 K/km
20 °C/1000 ft65.6168 K/km
25 °C/1000 ft82.021 K/km
30 °C/1000 ft98.4252 K/km
K/km to °C/1000 ft conversion table
K/km to °C/1000 ft conversion table
K/km°C/1000 ft
1 K/km0.3048 °C/1000 ft
2 K/km0.6096 °C/1000 ft
3 K/km0.9144 °C/1000 ft
4 K/km1.2192 °C/1000 ft
5 K/km1.524 °C/1000 ft
6 K/km1.8288 °C/1000 ft
6.5 K/km1.9812 °C/1000 ft
7 K/km2.1336 °C/1000 ft
8 K/km2.4384 °C/1000 ft
9 K/km2.7432 °C/1000 ft
9.8 K/km2.98704 °C/1000 ft
10 K/km3.048 °C/1000 ft
15 K/km4.572 °C/1000 ft
20 K/km6.096 °C/1000 ft
25 K/km7.62 °C/1000 ft
30 K/km9.144 °C/1000 ft

Quick answers

Quick answers

How many K/km is 1 °C/1000 ft?
1 °C/1000 ft is 3.28084 K/km.
How many K/km is 10 °C/1000 ft?
10 °C/1000 ft is 32.8084 K/km.
How many K/km is 9.8 °C/1000 ft?
9.8 °C/1000 ft is 32.1522 K/km.

The units

About these units

Degrees Celsius per 1,000 feet (°C/1000 ft)

The aviation rule of thumb.

Kelvins per kilometer (K/km)

The meteorology and geology unit.

Learn more about lapse rate units

Keep going

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