The density of propane at 25 degrees C is .493 grams per cubic centimeter

So, scaling up, we have a litre with a mass of 493 grams or 1.1 Pounds

Or, put in reverse to answer you question, 0.91 Litres = 1 pound

Mark

So, scaling up, we have a litre with a mass of 493 grams or 1.1 Pounds

Or, put in reverse to answer you question, 0.91 Litres = 1 pound

Mark