It can take as few as 12 months to earn a diploma in practical nursing, as opposed to approximately 2-3 years to earn an associate or bachelor's degree in nursing (ADN/ASN or BSN). Learn more about how to become an LPNExplore Now Other Questions Is a degree in health science worth it? Are there any scholarships available? Is a diploma in bookkeeping and payroll accounting worth it? What does a medical coder do?