Measuring for my mold...

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I have my rectangular mold i have been using since the beginning and I know how much ingredients I need to fill it.

I want to start using circular molds. How do I measure how much ingredients I will need to fill them? This has to be a simple fix, but I am either making way too much or not enough... is there a formula?
 
I have my rectangular mold i have been using since the beginning and I know how much ingredients I need to fill it.

I want to start using circular molds. How do I measure how much ingredients I will need to fill them? This has to be a simple fix, but I am either making way too much or not enough... is there a formula?
Yes - if by circular you mean a cylinder, measure the radius, and the volume will be the height x the radius x the radius x 3.14 (pi). Or h*pi*r2. There’s plenty of info online about how to do this. Try this site Volume of Cylinders – Explanation & Examples
Once you have cubic inches you have the figure out what volume you’ll need and you can convert it to liquid ounces or liters. Cubic Inches to US Fluid Ounces conversion
Hope that helps.
 
you can usually find the volume requirements of your molds on the website of where you bought/buy them! reading reviews can also give you a sense of recommendations from other people who use those molds, (ie if they say they can hold 10 fl oz but really hold 9.5 fl oz better!)
 
When I have a new mold, I usually weigh it, then fill it with water, then weigh it again. Since water has the density of 1, I know the volume will be pretty close. I do the same candle containers.

That being said, I usually err on the side of a little too much and keep a silicone bar mold nearby to catch any overage.
 
When I have a new mold, I usually weigh it, then fill it with water, then weigh it again. Since water has the density of 1, I know the volume will be pretty close. I do the same candle containers.

That being said, I usually err on the side of a little too much and keep a silicone bar mold nearby to catch any overage.
That’s a lot simpler! Thanks.
 

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