Any liquid inside a container will have volume. Let us try to understand what is a volume of a liquid and how do we measure it.
Milk inside the milk packet, a liquid chemical in the laboratory flask and medicine syrup inside the bottle and cap, all have volume.
Volume is the amount of space taken by the liquid. For example, what volume of water is inside this bottle?
Liquid volume can be measured using various units. The standard unit for measuring volume is Liter(l).
- A packaged bottle holds around 1 liter of water.
-A bucket holds around 10 liters of water.
-A swimming pool can hold 375000 liters of water.
A smaller unit than a liter is milliliter(ml).
1000 ml = 1 l (1 liter is one thousand times as much as 1 milliliters)
laboratory flask/cylinders, kitchen measuring cups, and the medicine syrups are usually marked in milliliters.
- A teaspoon of water is about 5ml.
- A cup of tea is approx 240ml.
- A can holds about 330ml of juice.
To measure a larger volume of liquid we use Kiloliter. A kiloliter(kl) is equal to 1000 liters.
1 kl = 1000 l
The amount of space that a container has for holding a liquid is called it's capacity. All these containers are of different sizes and shapes, but they all are of the same capacity.
Each bottle can hold up to 1 liter of a liquid. So all these bottles have the same capacity. The below bottle is 1-liter capacity but contains 250 ml volume of water.
Note: Capacity is the amount of space of a container for holding a liquid and Volume is the amount of space the liquid takes in a container.
As per US standard liquid volume is measured in Gallon, Quart, Pint, Cup, and Ounce.
1 ounce = 2 tablespoons
1 cup = 8 ounces
1 pint = 16 ounces = 2 cups
1 quart = 32 ounces = 2 pint
1 gallon = 128 ounces = 4 quarts
A gallon is about \(3\frac{3}{4}\)liters. A liter is about the same volume as a quart. The below figures will help you compare these units.
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1 Cup |
1 Pint | 1 Quart | 1 Gallon |
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In this lesson, we will see the conversion of units in the metric system, which is liters to milliliters and kiloliters.
Question 1: How many 20 ml cups will fill a 1-liter bottle?
Solution:
As 20 ml × 50 = 1000ml = 1 l, therefore 50 cups of 20 ml capacity will fill one liter bottle.
Question 2: 10,000 ml = _____l?
Solution:
1000 ml = 1l
10000 ml = 10000/1000 = 10 l
Question 3: 3 liters = _______ml?
Solution:
1 liter = 1000 ml
3 liters = 3 × 1000 = 3000 ml
