## easy calc that i can't do

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biology_06er
Coral
Posts: 260
Joined: Tue Mar 21, 2006 9:33 am

### easy calc that i can't do

Hey there,

say I have a g/L and I want to convert to ug/mL how do I do this?
I know its really simple maths but I haven't done it in ages and just want someone to explain it or see if im right

say i have 4g/L and wanna convert to ug/mL--do i just go (4/10^-6)/1000

at first i thought i have to multiply by 1000 to get L-->mL but then my answer was huge so i divided it and it seems ok...so why don't i multiply by 1000 seeing as im converting L-->mL??

Thanks in advance
biology_06er

Revenged
Coral
Posts: 118
Joined: Sat Oct 07, 2006 10:27 pm

### Re: easy calc that i can't do

biology_06er wrote:Hey there,

say I have a g/L and I want to convert to ug/mL how do I do this?
I know its really simple maths but I haven't done it in ages and just want someone to explain it or see if im right

say i have 4g/L and wanna convert to ug/mL--do i just go (4/10^-6)/1000

at first i thought i have to multiply by 1000 to get L-->mL but then my answer was huge so i divided it and it seems ok...so why don't i multiply by 1000 seeing as im converting L-->mL??

Thanks in advance
biology_06er

firstly,

4 g = 4x10^6 micrograms

4g/L = 4x10^6 ug/L

then you must divide by 1000 (since 1mL is 0.001L)

so you end up with,

4x10^3 ug/mL (or 4000 ug/mL)

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