# Online mold size calculator ?

Discussion in 'Lye-Based Soap Forum' started by jbarad, Feb 24, 2009.

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1. Feb 24, 2009

#### Well-Known Member

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I used to use the Rational Soapmaker mold calculator but it seems to have gone offline. The domain is inactive now

Does anyone have a link to another online mold size calculator ? I know I can do it by hand, but I'm mathematically challenged and I prefer the easy enter numbers and click the button method

2. Feb 24, 2009

### topcat

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Hi Rhonda. Summerbee Meadow have an online lye calc with a recipe resizer added to it, so that may be of help to you:-

HTH!

Tanya

3. Feb 24, 2009

### itsmeroro

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Maybe Paul can chime in -- what is the formula to figure out the liquid volume for a mold? I had it somewhere and now can't find it.

Thanks! Rachelle

4. Feb 24, 2009

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Thanks that works !!

5. Feb 24, 2009

### topcat

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Here it is: http://www.soapmakingforum.com/forum/vi ... php?t=3461

It's a sticky topic at the top of the soap forum section :wink:

Tanya

6. Feb 24, 2009

### itsmeroro

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I saw that but for some reason its not coming out correct for me. I must be doing something wrong...

I NEED SOME HELP!! Argh.

I did a recipe last night with 80 oz total oils in my silvermoon log mold which is 20 x 3.5 x 2.75 and it was not even half full... any ideas?

7. Feb 24, 2009

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did you discount the water ? I know that affects the total at the end.

8. Feb 24, 2009

### topcat

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I have used Paul's figures to work out oil weight for a mould before and it worked fine....? I only take a 5% water discount and the recipe came out pretty well just right.

itsmeroro - are the dimensions you quote here the inside dimensions of your mould? That is the measurements you need. Using your figures I get 77 oz. oils so 80 should be okay. Weird..... :?

Tanya

9. Feb 25, 2009

### carebear

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Are you sure you measured everything correctly? I'd have used 77 ounces of oils for that mold - maybe 80 if I soaped at 34% (lye conc) as I often do.

10. Feb 25, 2009

### itsmeroro

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Yes, its the inner dimensions... I got 80 ounces... I discount at 6% with 33%. I am going to try and remake... maybe I measured wrong. Its possible!

11. Nov 8, 2019

### KirstyJay

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12. Nov 8, 2019

### lsg

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The link was posted in 2009. Check the bottom of the post window and you can see if the post is an old one.

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