Interpret conversion graphs

Home learning focus

Learn how to interpret conversion graphs and practise using them to convert between different measurements, such as currencies.

This lesson includes:

  • 1 video
  • a learning summary
  • 2 activities with answers

Created in partnership with Sparx


Conversion graphs

Conversion graphs show us how two different units are related to each other, for example two types of currency. You could also use them to work out the relationship between different types of weight, temperature or length.

Look at this example of a graph that we could use to convert between two different currencies - Euros (€) and British pounds (£).

The value of Euros against British pounds

Imagine you wanted to convert £20 into Euros. You can use the conversion graph to do this easily.

1. Find £20 on the British pounds axis.

2. Read up to find where it meets the diagonal conversion line.

3. Read across to the Euro axis to find the converted value.

From the graph you can see that £20 converts into €22.50.

The value of Euros against British pounds

Watch this video from Sparx to learn more about solving different problems using conversion graphs. To see a short recap and further example of the learning points you have covered so far, watch the video from the beginning. If you are ready to carry on and progress your learning, begin watching at 1:25.

Please pause the video as needed, so you can stop and work out the different problems for yourself.

Find out more on how to use conversion graphs


Activity 1

Currency conversions, exchange rates and other measurements

To put what you have learned into action, have a go at this set of questions from Sparx and test your knowledge on interpreting conversion graphs using different forms of measurement. Write your answers on a piece of paper.

Conversion graphs - currencies, exchange rates and other measurements

Click here to see the correct answers to the questions.

Activity 2

MyMaths - creating and interpreting conversion graphs

Go further - try this interactive activity from Oxford University Press where you can have a go at creating and interpreting conversion graphs using different forms of measurement. Select a chapter to work on and click 'Next' each time as you complete the various tasks. You can mark your answers within the activity.

Creating and interpreting conversion graphs with different measurements

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