Anonymous asked in Science & MathematicsEarth Sciences & Geology · 1 month ago

How do I convert kg/yr to volume/year?

I was told to use density and to flip the units to m^3/kg - but that's not density, no? Does it make sense to do it that way?


So, instead of 1300kg/m^3 it's 1m^3/1300kg ?

3 Answers

  • A.J.
    Lv 7
    1 month ago
    Favorite Answer

    If you flip the units, you also flip the number in the same way.

    The density of water is 1000 kg/m3 at 4 °C (39 °F).

    That makes it 1m3/1000kg or written like 1/1000  m3/kg

    If water flows at 55,000 kg of water per year, how many cm3 of water per second?

    (55,000 kg/yr)  x (1/1000 m3/kg) = 55 m3/yr  is the first step to m^3/year

    1 m^3 is 100x100x100 cm^3 = 1,000,000 cm^3

    1 year approximates as 365.25 days  or 8,765.76 hours or 525,945.6 minutes

    or 31,556,736 seconds

    (55 m^3/year) x 1,000,000 cm^3/m^3 x 1 year / 31,556,736 seconds

    You multiply numbers and cross-out units

    55,000,000 / 31,556,736   cm^3/second

    1.743 cm^3/second   for 55,000 kg/year  water flow

    Get familiar with using units. 

    Per your update, you understand the concept, and try a few examples converting units.

  • 1 month ago

    Since density=mass/volume, then volume=mass/density. So, volume = kg/(kg/m^3) the kg cancel each other and you're left with m^3 - a volume! Viola!

  • Mark
    Lv 7
    1 month ago

    You don't.  Density, size, and mass are three completely different units.  That's like asking "what is 32F in feet"?

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