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Thread: convert LPM to cubic feet per minute

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    convert LPM to cubic feet per minute

    what is the formula for converting an RMV in lpm to cu ft.?

    so what would 1.25 lpm equate to?


    thanks


    BAM

    and how do you convert a 3L tank to cubic feet?

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    Re: convert LPM to cubic feet per minute

    For cylinder size conversions, I refer you to this thread my friend:

    http://www.rebreatherworld.com/showthread.php?t=2851

    The same conversion can be used for RMV, e.g.

    Convert cf into free liters using: cf * 28.3 = free liters

    so 1.25lpm = .044 cuft/minute

    You can also download the trial version of V Planner and have a play in metric and imperial modes.

    V-Planner VPM & VPM-B dive decompression software

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    Re: convert LPM to cubic feet per minute

    or better yet do everything in liters, liters per minute, bar, and meters and live a happy life.

    I took a trimix course last weekend and my instructor was figuring his preasure needed in his al 80s without bothering to use the water capacity and using 80 cu ft even after I mentioned that they are really 77 cu ft tanks. His answer? "I figured my RMV using 80 cu ft as the tank volume so now I use it to calculate the psi needed for the dive." Maddness.

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    Re: convert LPM to cubic feet per minute

    Quote Originally Posted by cramerdn  View Original Post
    or better yet do everything in liters, liters per minute, bar, and meters and live a happy life.

    I took a trimix course last weekend and my instructor was figuring his preasure needed in his al 80s without bothering to use the water capacity and using 80 cu ft even after I mentioned that they are really 77 cu ft tanks. His answer? "I figured my RMV using 80 cu ft as the tank volume so now I use it to calculate the psi needed for the dive." Maddness.

    after looking at the metric formulas.... imperial sucks... us americans do things the hard way don't we?


    thanks for your help

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    Re: convert LPM to cubic feet per minute

    I was 4 hours into my first tech diving course when I saw the light.

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