I have given 14 pt font size in photoshop cs6 but its looking bigger than that.whats going on?
You're using points as a unit which, in short, is a typographic measure relative to the image resolution, at least in bitmap documents. The image resolution defines how many pixels are being represented by your 14pt:
- in 72 ppi: 14pt = 14px
- in 300 ppi: 14pt = ~58px
If you want to have consistent font sizes in Photoshop no matter at what image resolution you're working in, switch to pixel units for
Preferences > Units & Rulers