scalechart
nounUK /ˈskeɪl.tʃɑːt/
US /ˈskeɪl.tʃɑːrt/
A scalechart is a picture that shows sizes or amounts so you can compare them.
The teacher used a scalechart to show how tall each student was.
OTHER MEANINGS
2. A chart used in music to show the notes of a scale.
The piano student studied the scalechart to learn her finger positions.
3. A printed table that converts map distances to real distances.
Check the scalechart at the bottom of the map to see how far the town is.
4. A diagram showing the relative sizes of model parts.
The model kit included a scalechart so builders knew each piece's true size.