Measurement of Weight

Standard unit of weight is kilogram.

We commonly use grams and kilograms to measure weight.

Gram is the basic/standard unit of weight which is written as ‘g’.

All units of weight are related to each other.

We measure small weights in cg and mg and large weights g and kg.

According to weight conversion charts, units of weights and their equivalents are:

1 kilogram (kg) = 10 Hectograms (hg) = 1000 g

1 Hectogram (hg) = 10 Decagrams (dag) = 100 g

1 Decagram (dag) = 10 Grams (g)

1 Gram (g) = 10 Decigrams (dg) = 100 cg = 1000 mg

1 Decigram (dg) = 10 Centigrams (cg)

1 Decigram = 0.1 Gram

1 Centigram (cg) = 10 Milligrams (mg)

1 Centigram = 0.01 Gram

1 Milligram = 0.001 Gram

 Conversion

While converting from a larger unit to a smaller unit, we multiply

Example 1:

g → mg

1 g = 1000 mg

Therefore, 3 g = 3 x 1000 = 3000 mg

Example 2:

kg → g

1 kg = 1000 g

Therefore, 2.5 kg = 2.5 x 1000 = 2500 g

While converting from a smaller unit to a larger unit, we divide

Example 1:

g → hg

1 g = 1/100 hg

Therefore, 20 g = 20/100 hg = 0.2 hg

Example 2:

g → kg

1 g = 1/1000 kg

Therefore, 5g = 5/1000 kg = 0.005 kg

Practice Exercise

Q1) Word problem:

1. Dia’s weight is 25000g. What is her weight in kg?

2. A pencil box weighs 25 g. Find the weight of 5 such pencil box.

3. Ravi’s bag weighs 15 kg. Ramesh’s bag weighs 12500g. Whose bag is heavier and by how much?






4. Convert 1400 mg to g.





Q2) Do as Directed

1. Express as decagrams: 505.100kg







2. Weight of 1 egg is 33g. Find the weight of 1 dozen eggs?






3. 10 bag of wheat weighs 712kg. What is the weight of each bag?








4. Weight of 1 orange is 125 g. What is the weight of 1 dozen oranges?