Milliliters (cc) can't be converted to pounds. Milliliters measure volume, while pounds measure mass.
Pounds measure weight, and liters measure volume. You cannot convert from one to another.
The medium density should be known to convert a volume measure (L) to a mass measure (pounds)
The answer will depend on what it is that you wish to convert into PSI. You cannot. Inches are a linear measure, PSI (pounds per square inch) is a measure of pressure. The units are incompatible.
The conversion factor is 0.0625 - So: ounces x 0.0625 = pounds.
To convert milliliters to pounds, you would need to know the density of the substance. Milliliters measure volume, while pounds measure weight. Without knowing the density, it is not possible to directly convert 40-70ml to pounds.
You cannot convert gallons per minute to pounds per square inch. The quantities do not have the same meaning. Gallons are a measure of volume, and pounds are a measure of weight. Minutes are a measure of time, and square inches are a measure of area.
How do you want to convert that? km is a unit of length/distance; pounds is a unit of mass (or weight, the distinction is not always clear). It really doesn't make sense to convert units that measure completely different things.
You don't because km (kilometers) is a measure of distance and lbs (pounds) is a measure of weight To convert the unit of weight kg (kilograms) to pounds, multiply by 2.2 That is, 1 kg = 2.2 lbs
A foot is a measure of dimension or distance. A pound is a measure of weight. They don't covert into eachother. Are you perhaps confusing them with foot-pounds which is a measure of torque?
It would be closer to 2 pounds. You should measure weight when baking! Cups is a measure of volume. Pounds is a measure of weight and mass. You can not directly convert the two.
Liters is a measure of volume whereas pounds is a measure of weight. You would need the density to convert the 2 units.