Weight and Capacity Class 5 Maths Chapter 8 CBSE Notes 2025-26

In this chapter, you will learn about weight and capacity, which are part of measurement in Maths. Weight is how heavy an object is, while capacity means how much a container can hold. The chapter introduces various standard units like grams (g), kilograms (kg), milligrams (mg), litres (l), and millilitres (ml), and helps students become comfortable using them in real-life situations.

The common units of weight are gram (g), kilogram (kg), and milligram (mg). A kilogram is 1,000 grams, and a gram is 1,000 milligrams. Items like beds, rice bags, and iron almirahs are weighed in kilograms, while lighter items such as a water bottle or groceries are usually measured in grams. Even lighter items, such as medicine or gold, use milligrams.

• 1 kilogram (kg) = 1,000 grams (g)
• 1 gram (g) = 1,000 milligrams (mg)
• Weights are measured using different types of weighing scales.

For example, an iron almirah weighed as 40 g or sofa as 30 g is incorrect, as these are much heavier and would be measured in kg. Recognising whether the weight given is reasonable is an important skill covered in this topic.

Students practise reading various weighing scales and recording the weights properly, sometimes converting the units as needed. Understanding conversions, like from kilograms to grams or grams to milligrams, is essential for daily maths. The chapter provides exercises using double number lines and tables to match the equivalent weights, such as matching 2 kg with 2,000 g.

• 3 kg 500 g is the same as 3,500 g
• 5 kg 50 g equals 5,050 g
• 7 kg 67 g is 7,067 g

Learning to do these conversions helps solve daily life problems and compare different measurements easily.

For objects even lighter than a gram, we use milligrams. For example, an ant typically weighs between 1 and 5 mg. On the other hand, heavier units like quintal and tonne are used for larger quantities such as agricultural products.

• 100 kg = 1 quintal
• 10 quintals = 1 tonne
• 1 tonne = 1,000 kg

Gold ornaments and medicine doses are usually measured in milligrams. Large agricultural weights, such as 5,000 kg, are best represented as quintals or tonnes.

The chapter explains that we can add and subtract weights by the same units or by converting to common units first. This is helpful in making calculations simpler, whether you are combining the weights of groceries or working out how much is left after using some.

• 2 kg 500 g + 1 kg 750 g = 4 kg 250 g
• 4 kg 500 g used from 10 kg sack → 10 kg - 4 kg 500 g = 5 kg 500 g left

Column methods and oral calculations are both encouraged for these operations depending on the numbers involved.

Applying multiplication and division, you can find totals or evenly distribute quantities. For example, if one sack of potatoes is 10 kg 500 g and a farmer has 4 sacks, their total weight is 42 kg. To share 4 kg 800 g equally among 4 boxes, each box gets 1 kg 200 g.

Daily maths like finding the cost for buying more quantity, or dividing food for a group, use these operations. For example, 5 kg of tomatoes cost ₹73, so 10 kg would cost ₹146.

Capacity tells us how much liquid something can hold, measured in litres (l) and millilitres (ml). 1 litre equals 1,000 millilitres. For example, a usual water bottle is 500 ml, and a jug might be 2 litres.

• 1 litre (l) = 1,000 millilitres (ml)
• To make 2 cups of tea, less than a litre is usually enough

Buckets, bottles, and containers use these units. Recognizing which unit fits the quantity is important — for example, a bucket would not be measured in millilitres, but litres.

Like in weight, converting between litres and millilitres is key. If Ramiz drinks two bottles of 500 ml each at school, that's 1,000 ml or 1 litre. If a family needs 2 litres of milk every day, that's 2,000 ml. Tables and exercises help students convert and compare values easily.

• 3 l 8 ml = 3,008 ml
• 14,075 ml = 14 l 75 ml

These conversions prepare students for solving practical questions about liquids in daily life.

The chapter provides a variety of real-world examples like distributing juice evenly among glasses, dividing milk, and comparing fuel filled in vehicles. For example, a petrol pump record may require students to calculate how much more fuel was provided to buses than trucks or find the total fuel sold in a day.

Other scenarios include how many glasses can be poured from a 5-litre juice jar if each glass is 250 ml, or how much buttermilk there is in eight containers, each holding 1 l 75 ml.

This chapter focuses on reading, adding, subtracting, multiplying, and dividing weights and capacities using correct units and conversions. It helps make sense of real-life scenarios whether in the kitchen, a grocery store, or during family activities like picnics.

• Understanding units and conversions is essential for measurement
• Solving different problems using weights and capacities helps in practical life
• Applying simple calculation tricks makes working with these quantities easier

Learning weight and capacity gives a strong base for higher mathematics and daily problem solving. Through practical questions and table-based activities, you become confident in handling all kinds of measurement tasks.

CBSE Class 5 Maths Chapter 8 Notes – Weight and Capacity: Key Revision Points

These CBSE Class 5 Maths Chapter 8 notes on Weight and Capacity help you understand units, conversions, and solve real-life problems with ease. Practice the key points and tables to quickly revise measurement concepts before your exams. The notes include solved examples, easy-to-remember conversions, and fun word problems for thorough understanding.

Use these summary notes to revisit important formulae, addition and subtraction tricks for weights and capacities, and how different units relate to each other. With simple language and real-world cases, the revision notes help boost confidence and speed up your Maths preparation for Chapter 8.