Parachute "min pressure"

[AlpacaMall]

What does the "min pressure" tweakable on parachutes correspond to in terms of kPa? I'm trying to make the parachutes only deploy at 50kPa, but I'm not sure how the 0.04-0.75 scale corresponds to that.

[Fraktal]

From personal experience, 0.1 deploys at 10 kPa, so I think 0.5 is what you need.

[AlexinTokyo]

From the wiki (https://wiki.kerbalspaceprogram.com/wiki/Kerbin), 100% is 101,325 Pa, so 50 kPa is 50,000 / 101,325 = 0.4934 (so 0.5 is close enough for government work).

[jimmymcgoochie]

The value is % of sea level pressure, so you can approximate the number after the decimal (to 2 significant figures e.g. 0.10) to be the pressure in kPa that the chute will open. Most of the time I set mine to around 0.65 which is safe enough anywhere but over the highest mountains and means the time spent slowly floating down under chutes is minimised compared to, say, 0.1.