How high should a dress suit's skirt go according to professional standards?

A dress suit's skirt should ideally go to the knee for a professional standard. This length is generally deemed appropriate for business settings, as it balances professionalism and style while providing a polished appearance. A skirt that is one inch or even two inches above the knee tends to veer towards being considered less formal or appropriate for some professional environments. Going three inches above the knee could further diminish the formality and is often viewed as unsuitable in many corporate or business contexts. Therefore, adhering to the knee-length standard ensures that attire remains appropriate and respectful in professional settings.