The default scale of a profile in Surfer for the X axis is 6” and the Y axis is 1.5”. This is unrelated to the units on the X and Y axes.
You can change the scale in the profile properties:
- Select Profile in the Contents window.
- Click the Scale tab in the Properties window.
- Change the scale of one direction; or for proportional scaling, check the Proportional XY scaling check box and change the scale.