There is no need to estimate. There are 8 pints in a gallon , so 15 pints is 1 -7/8 gallons.
Yes it is. 1 quart = 4 cups And 1 cup = 0.25 quart. There are 32 US fluid ounces (2 pints, or 4 cups) in 1 US quart (946.4 ml). There are 40 Imperial fluid ounces (2 pints) in 1 Imperial quart (1,136 ml). Note that there is no 'cup' in the Imperial system, it is best to use pints or half pints, and not 'cups'.
5 gallons
I would say gallons. Depends what kind of fish, but smaller than 10 gallons seems cruel.
The easiest way to do this sum is to convert all of the quantities to the same units. Pints would be best. There are 2 pints in a quart and there are 8 pints in a gallon. This means that the sum becomes 52 pints - 7 pints. The answer is obviously 45 pints. You can now convert this back into gallons, quarts and pints. 45 pints is 5 gallons (40 pints) plus 2 quarts (4 pints) and 1 pint. So the whole sum would be...6 gal + 2 qt - 3 qt + 1 pt = 5 gal + 2 qt + 1 pt.
Divide by 4. 1 quart = 4 cups And 1 cup = 0.25 quart. There are 32 US fluid ounces (2 pints, or 4 cups) in 1 US quart (946.4 ml). There are 40 Imperial fluid ounces (2 pints) in 1 Imperial quart (1,136 ml). Note that there is no 'cup' in the Imperial system, it is best to use pints or half pints, and not 'cups'.
There are 32 US quarts in 8 gallons. 4quarts=1 gallon. 4X8 = 32quarts 32 quarts (4 quarts per gallon). There are 32 US fluid ounces (2 pints, or 4 cups) in 1 US quart (946.4 ml). There are 40 Imperial fluid ounces (2 pints) in 1 Imperial quart (1,136 ml). Note that there is no 'cup' in the Imperial system, it is best to use pints or half pints, and not 'cups'.
2 1 quart = 4 cups And 1 cup = 0.25 quart. There are 32 US fluid ounces (2 pints, or 4 cups) in 1 US quart (946.4 ml). There are 40 Imperial fluid ounces (2 pints) in 1 Imperial quart (1,136 ml). Note that there is no 'cup' in the Imperial system, it is best to use pints or half pints, and not 'cups'.
5 pints In US measure, 1 pint = 2 cups And 1 cup = 0.5 pint. There are 16 US fluid ounces, 2 cups in 1 US pint (473.2 ml). Although there are 20 Imperial fluid ounces in 1 Imperial pint (568.3 ml), the Imperial system does not have cups, so it is best to use half pints.
2 quarts. In US measure: 1 quart = 4 cups And 1 cup = 0.25 quart. There are 32 US fluid ounces (2 pints, or 4 cups) in 1 US quart (946.4 ml). There are 40 Imperial fluid ounces (2 pints) in 1 Imperial quart (1,136 ml). Note that there is no 'cup' in the Imperial system, it is best to use pints or half pints, and not 'cups'.
0.37 gal 1 gallon makes 128 ounces and 1 ounce is 0.0078 gallon in U.S measure. There are 8 ounces in a cup, 2 cups in a pint, 2 pints in a quart and 4 quarts in a gallon. That makes 128 ounces in a gallon US. In UK 20 ounces to the pint, 8 pints to the gallon which makes 160 ounces Imperial measure.
Yes 1 quart = 4 cups And 1 cup = 0.25 quart. There are 32 US fluid ounces (2 pints, or 4 cups) in 1 US quart (946.4 ml). There are 40 Imperial fluid ounces (2 pints) in 1 Imperial quart (1,136 ml). Note that there is no 'cup' in the Imperial system, it is best to use pints or half pints, and not 'cups'.
Pints are a measure of liquid volume. Pounds is a measure of weight/mass. They don't convert directly because of density. If we are talking water, there would be 2 pounds. Feathers would probably fill several gallons.