Converting Herbal Formulas from Percentage to Grams

[Guest guest]

Hi All

Can someone please tell me how to convert a formula that is written in

percentage to grams? For example if an author lists Si Jun Zi Tang as:

Ren Shen 30%, Bai Zhu 30%, Fu Ling 30%, and Zhi Gan Cao 10%, how do I

do the math so that I can convert it to read Ren Shen 9g,Bai Zhu9g,

Fu Ling 9g, and Zhi Gan Cao 3g?

 

That is a fairly easy example. I get confused when something reads

like for example the same above herbs but 20%,16%, 60%,and 4%.

 

I understand that in 100g 30% is 30g. What I want to do is to take a

formula from the " Notes from South Mountain " or " Chinese Herbal Patent

Medicines " books which are written in percentages and convert those

percentages into grams.

 

I know how to do the math to take a formula in grams and convert it to

percentage, but can't seem to figure out the math to go from

percentage to grams.

 

Thank you

Denise

[Guest guest]

, " mountainwarp "

<twoocean39 wrote:

>

> Hi All

> Can someone please tell me how to convert a formula that is

written in

> percentage to grams?

> I understand that in 100g 30% is 30g. What I want to do is to

take a

> formula from the " Notes from South Mountain " or " Chinese Herbal

Patent

> Medicines " books which are written in percentages and convert

those

> percentages into grams.

> I know how to do the math to take a formula in grams and convert

it to

> percentage, but can't seem to figure out the math to go from

> percentage to grams.

 

It seems like you answered your own question above, but you've

missed it.

 

Really, all you need to know is how many total grams the formula is,

then when you see the percentages listed, even if they are not nice

round numbers, just multiply the total grams by each percentage to

get the gram equivalent for that medicinal.

 

I do not have the book you mention. Does it not have the total

grams for the formula? If not, then check another formulary.

 

Brian C. Allen

[Guest guest]

You can look at this two ways. An easy case would be that if you feel gan cao

should be 3

grams in the formula and it is 6 percent of the total then divide every other

herb's

percentage by 2 to get their gram weight. In this case you have to make a

determination of

at least one herb's weight.

In the other way you would determine the total weight of all the herbs in the

finished

formula and do the math in the same way. A 90 gram formula would require 90 per

cent

of each percentage. A 110 gram formula would require a 1.1 multiplication.

Both cases require a judgement before you start.

I think that should do it.

doug

 

 

, " mountainwarp " <twoocean39

wrote:

>

> Hi All

> Can someone please tell me how to convert a formula that is written in

> percentage to grams? For example if an author lists Si Jun Zi Tang as:

> Ren Shen 30%, Bai Zhu 30%, Fu Ling 30%, and Zhi Gan Cao 10%, how do I

> do the math so that I can convert it to read Ren Shen 9g,Bai Zhu9g,

> Fu Ling 9g, and Zhi Gan Cao 3g?

>

> That is a fairly easy example. I get confused when something reads

> like for example the same above herbs but 20%,16%, 60%,and 4%.

>

> I understand that in 100g 30% is 30g. What I want to do is to take a

> formula from the " Notes from South Mountain " or " Chinese Herbal Patent

> Medicines " books which are written in percentages and convert those

> percentages into grams.

>

> I know how to do the math to take a formula in grams and convert it to

> percentage, but can't seem to figure out the math to go from

> percentage to grams.

>

> Thank you

> Denise

>

[Guest guest]

, " "

wrote:

>Thanks Doug- that was the info that I needed. Denise

 

> You can look at this two ways. An easy case would be that if you

feel gan cao should be 3

> grams in the formula and it is 6 percent of the total then divide

every other herb's

> percentage by 2 to get their gram weight. In this case you have to

make a determination of

> at least one herb's weight.

> In the other way you would determine the total weight of all the

herbs in the finished

> formula and do the math in the same way. A 90 gram formula would

require 90 per cent

> of each percentage. A 110 gram formula would require a 1.1

multiplication.

> Both cases require a judgement before you start.

> I think that should do it.

> doug

>

>

> , " mountainwarp "

<twoocean39@>

> wrote:

> >

> > Hi All

> > Can someone please tell me how to convert a formula that is

written in

> > percentage to grams? For example if an author lists Si Jun Zi

Tang as:

> > Ren Shen 30%, Bai Zhu 30%, Fu Ling 30%, and Zhi Gan Cao 10%, how

do I

> > do the math so that I can convert it to read Ren Shen 9g,Bai

Zhu9g,

> > Fu Ling 9g, and Zhi Gan Cao 3g?

> >

> > That is a fairly easy example. I get confused when something

reads

> > like for example the same above herbs but 20%,16%, 60%,and 4%.

> >

> > I understand that in 100g 30% is 30g. What I want to do is to

take a

> > formula from the " Notes from South Mountain " or " Chinese Herbal

Patent

> > Medicines " books which are written in percentages and convert

those

> > percentages into grams.

> >

> > I know how to do the math to take a formula in grams and convert

it to

> > percentage, but can't seem to figure out the math to go from

> > percentage to grams.

> >

> > Thank you

> > Denise

> >

>