Ampler Charts adds a y-axis to a chart from the right-click menu, giving the chart a labelled value scale so the reader can see what the bars or lines represent.
Quick answer: Right-click the chart and choose Add y-axis from the menu — Ampler adds a value-scale y-axis to the chart.
How to use it

Right-click the chart and choose Add y-axis to show the value scale.
- Right-click on the chart.
- Select Add y-axis from the menu.
Ampler Charts functions are reached from the chart’s right-click menu; the y-axis gives the chart a labelled value scale.
Why use it
A chart without a visible y-axis leaves the reader guessing at the scale — the bars have a shape but no magnitude. Adding a y-axis puts a labelled value scale on the chart in one click, so the numbers behind the picture are legible and the exhibit can be trusted.
How consultants use it
On a consulting chart the axis is part of the argument: a reader has to see the scale to trust the numbers, so a missing or unlabelled y-axis is a real flaw. Three conventions apply:
- Every axis is labelled and legible: the value scale is always shown, so magnitudes are unambiguous.
- The scale is made explicit: the reader should never have to guess what the bars or lines represent.
- Formatting stays consistent: axis scales and number formats are kept uniform across the exhibits in a deck.
Adding and formatting the y-axis is part of making a chart exhibit-ready.
Tips & best practices
- After adding the axis, set its number format (decimals, or a prefix such as a currency sign) by left-clicking the y-axis.
- To compare two metrics on different scales, add a second y-axis to a combination chart rather than forcing both onto one scale.
- Keep axis scales consistent across charts that are meant to be compared.
Availability
Part of Ampler Charts, included in Ampler for PowerPoint and the Ampler Suite, on Windows desktop PowerPoint.
Frequently asked questions
How do you add a y-axis to a chart in PowerPoint?
In Ampler Charts, right-click the chart and choose Add y-axis from the menu. Ampler adds a labelled value-scale y-axis to the chart.
How do you add a second (secondary) y-axis to a chart?
Convert a series to a line under Chart type, right-click the chart, and choose Add second y-axis — see “Add a 2nd y-axis to a combination chart” for the full steps.
Why does my Ampler chart have no y-axis?
An Ampler chart can be created without a visible axis. Adding a y-axis gives it a labelled value scale so the magnitudes are readable.
How do you format the y-axis number format?
Left-click the y-axis and set the number of decimal places, or type a custom format such as a $ prefix.
