2.1.2

Imperial Measurements

Test yourself on Imperial Measurements

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Imperial and Metric Measurements

Whilst you will mostly use metric measurements (e.g. grams, metres, litres), there are other forms of measurement that are still used. The other forms of measurement are known as imperial measurements.

Imperial measurements

Imperial measurements

  • Some examples of imperial measurements are:
    • Inches - a measure of length/distance.
    • Pounds - a measure of mass.
    • Pints - a measure of capacity (volume).
    • Miles - a measure of length/distance.
    • Ounce - a measure of mass.
Measuring length/distance

Measuring length/distance

  • You can measure lengths/distances in both inches and cm.
    • Inches are just another way to measure lengths/distances.
    • It is possible to convert between inches and cm.
Converting inches and centimetres

Converting inches and centimetres

  • 1 inch is the same as 2.5 cm. This means that:
    • 2 inches = 5 cm
    • 7.5 cm = 3 inches
Converting inches to centimetres

Converting inches to centimetres

  • To convert from inches to cm, you can multiply by 2.5.
    • E.g. 4 inches = 4 × 2.5 = 10 cm
    • E.g. 6 inches = 6 × 2.5 = 15 cm
Converting centimetres to inches

Converting centimetres to inches

  • To convert from cm to inches, you can divide by 2.5.
    • E.g. 5 cm = 5 ÷ 2.5 = 2 inches
    • E.g. 20 cm = 20 ÷ 2.5 = 8 inches

Distance and Mass

You can convert between imperial and metric measurements if you know how to convert them.

Miles and kilometres

Miles and kilometres

  • Distances are shown in miles on road signs in the UK.
Miles to kilometres

Miles to kilometres

  • 5 miles is the same as 8 km.
    • You can multiply these distances to work out how many kilometres are in 10 miles, 15 miles, 20 miles, etc.
Kilometres to miles

Kilometres to miles

  • 8 km is the same as 5 miles.
    • You can multiply these distances to work out how many kilometres are in 16 km, 24 km, 32 km, 40 km, etc.
Pounds and grams

Pounds and grams

  • A pound is not just a unit of money.
  • A pound is also a name for a measurement of weight.
Pounds to grams

Pounds to grams

  • There are 453 grams in 1 pound.
Pints and millilitres

Pints and millilitres

  • There are 568 ml in a pint.
Jump to other topics
1

Year 5 - Number

1.1

Number & Place Value

1.1.1The Value of Digits to Millions1.1.2Smallest & Biggest Numbers to Millions1.1.3Ordering Numbers to Millions1.1.4Counting in Powers of 101.1.5Counting in Negative Numbers1.1.6Rounding Numbers up to 1,000,0001.1.7Reading Roman Numerals
1.2

Addition & Subtraction

1.2.1Written Methods for Adding Large Numbers1.2.2Written Methods for Subtracting Large Numbers1.2.3Mental Addition & Subtraction1.2.4Rounding to Check Your Answer
1.3

Multiplication & Division

1.3.1Multiples1.3.2Factors1.3.3Prime Numbers1.3.4Prime Factors1.3.5Composite Numbers1.3.6Factor Trees1.3.7Multiplication by a 1 Digit Number1.3.8Long Multiplication Using Column Method1.3.9Times Tables1.3.10Division1.3.11Multiplying & Dividing by 10, 100 & 1,0001.3.12Square & Cube Numbers
1.4

Fractions & Decimals

1.4.1Compare & Order Fractions1.4.2Identifying Equivalent Fractions1.4.3Add & Subtract Fractions1.4.4Mixed Numbers & Improper Fractions1.4.5Multiplying Fractions by Whole Numbers1.4.6Converting Between Decimals & Fractions1.4.7Rounding Decimals1.4.8Ordering Decimals
2

Year 5 - Measurement

2.1

Measures

2.1.1Metric Measurements2.1.2Imperial Measurements
2.2

Perimeter & Area

2.2.1Perimeter2.2.2Area
2.3

Time

2.3.1Units of Time
3

Year 5 - Geometry

3.1

Properties of 3D Shapes

3.1.1Types of 3D Shapes3.1.2Faces, Edges & Vertices
3.2

Properties of 2D Shapes

3.2.1Polygons
3.3

Angles

3.3.1Angles in Degrees3.3.2Types of Angle3.3.3Finding Missing Angles
3.4

Position & Direction

3.4.1Reflection & Translation
4

Year 5 - Statistics

4.1

Graphs

4.1.1Line Graphs4.1.2Tables4.1.3Timetables
5

Year 6 - Number

5.1

Number & Place Value

5.1.1The Value of Digits to Ten Millions5.1.2Ordering Numbers to Millions5.1.3Rounding5.1.4Negative Numbers
5.2

Multiplication & Division

5.2.1Multiplication by a 2 Digit Number5.2.2Division5.2.3Multiples5.2.4Factors5.2.5Primes
5.3

Mental Maths

5.3.1Multiplying & Dividing by 10, 100 & 1,0005.3.2Addition & Subtraction5.3.3Adding & Subtracting 10, 100 & 1,0005.3.4Multiplication & Division
5.4

Order of Operations

5.4.1BIDMAS
5.5

Problem Solving

5.5.1Addition & Subtraction Multi-step Problems5.5.2Problem Solving with Proportion
5.6

Fractions & Decimals

5.6.1Simplifying Fractions Using Equivalents5.6.2Ordering Different Types of Fraction5.6.3Adding & Subtracting Fractions5.6.4Adding & Subtracting Mixed Numbers5.6.5Multiplying Fractions5.6.6Dividing Fractions by Whole Numbers5.6.7Converting Between Decimals & Fractions5.6.8Dividing Decimals
6

Year 6 - Ratio & Proportion

6.1

Ratio

6.1.1Using Ratios6.1.2Simplifying Ratios
6.2

Percentages

6.2.1Calculating Percentages
6.3

Scale

6.3.1Scale of 2D Shapes
7

Year 6 - Algebra

7.1

Sequences

7.1.1Describing Sequences7.1.2Finding Gaps in Sequences
7.2

Missing Number Problems

7.2.1Missing Number Problems
7.3

Equations

7.3.1Balancing Equations7.3.2Combining Two Variables
8

Year 6 - Measurement

8.1

Problem Solving

8.1.1Problem Solving with Measures
8.2

Unit Conversion

8.2.1Conversion Between Miles & Kilometres
8.3

Perimeter, Area & Volume

8.3.1Area8.3.2Volume8.3.3Nets8.3.4Faces, Edges & Vertices
8.4

Angles

8.4.1Types of Angle8.4.2Finding Missing Angles8.4.3Finding Missing Angles in Triangles8.4.4Vertically Opposite Angles
8.5

Circles

8.5.1Parts of a Circle
8.6

Coordinate Grids

8.6.1Positions on Coordinate Grids8.6.2Reflection & Translation
9

Year 6 - Statistics

9.1

Displaying Data

9.1.1Pie Charts9.1.2Line Graphs
9.2

Averages

9.2.1Mean

Practice questions on Imperial Measurements

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    Select the imperial measurements:True / false
  2. 2
    How do you convert a length from inches to centimetres?Multiple choice
  3. 3
    How many kilometres are there in 5 miles?Multiple choice
  4. 4
    How many miles are there in 8 kilometres?Multiple choice
  5. 5
    What do you use 'pounds' to measure?Multiple choice
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Metric Measurements

Perimeter