On the other hand, the "standard" ounce we usually think of is a specific measure of weight and defined to be 1/16 of a pound, or 28.3495 grams.
As you will remember from high school chemistry, liquids vary in density, which means that a gallon of one liquid will be heavier or lighter than others. Thus the weight of a fluid ounce also varies depending on the liquid in question.
Both white gas and denatured alcohol (one of the most common types of fuel used in alcohol stoves) are relatively low density and a fluid ounce of each weighs less than an actual ounce. Here's the specifics:
- A fluid ounce of denatured alcohol weighs 0.817 ounce.
- A fluid ounce of white gas weighs approximately 0.75 ounce (varies slightly by brand)
Learn more about stoves:
- Pack Heat, Not Weight: The Pros and Cons of Alcohol Stoves
- Alcohol Stoves: Useful Resources
- How to Unclog a White Gas Stove Jet
- How Canister Stoves Work: The Science Behind the Fuel