If you already have a bachelor’s degree in any field, nursing school takes 12 to 18 months for most people. That’s through an accelerated Bachelor of Science in Nursing (ABSN) program, the most common route for career changers. Other pathways take two to three years depending on the degree level you’re aiming for and whether you want to become a nurse practitioner.
Accelerated BSN: 12 to 18 Months
The accelerated BSN is designed specifically for people who already hold a bachelor’s degree in a non-nursing field. Most programs run 12 to 18 months and cover roughly 60 credit hours of nursing coursework, compared to the 120 credit hours in a traditional four-year BSN. You skip the general education classes you already completed in your first degree and dive straight into nursing science, clinical rotations, and hands-on skills training.
The pace is intense. You’ll take a full semester’s worth of nursing courses in compressed timeframes, often with classes running year-round through summers without breaks. Programs like the one at MGH Institute of Health Professions have trimmed their ABSN to just 12 months. Others stretch to 15 or 18 months depending on how clinical placements are scheduled. Most programs are full-time only, meaning you likely won’t be able to work while enrolled.
Direct-Entry Master’s: 2 to 3 Years
If you want to enter nursing at a graduate level, direct-entry Master of Science in Nursing (MSN) programs accept applicants with a bachelor’s degree in any discipline. These programs typically take two to three years. Rush University’s program, for example, runs two years. Programs that also prepare you for an advanced practice role, like nurse practitioner, generally take closer to three years.
At MGH Institute, the direct-entry MSN is a three-year track that awards both a BSN and an MSN. The first three semesters focus on foundational nursing courses and prepare you to pass the NCLEX-RN licensing exam. After passing the exam, you can work part-time as a registered nurse during the remaining three semesters while completing your master’s degree and choosing a nurse practitioner specialty. This path costs more time upfront but positions you for advanced practice roles without needing to go back to school later.
The ADN Alternative
An Associate Degree in Nursing (ADN) is a two-year community college program that also qualifies you to take the NCLEX-RN. If you already have a bachelor’s degree, the ADN itself isn’t shortened, but the follow-up step is faster. After completing an ADN, you can enroll in an RN-to-BSN bridge program, and because your prior degree waives upper-division general education requirements, you can finish the BSN in as little as one semester. Some students even take bridge courses concurrently with their ADN program, graduating with a BSN almost immediately after earning the associate degree.
This route takes longer overall than an ABSN (roughly two and a half to three years total), but it can be more affordable since community college tuition is significantly lower. It also lets you start earning a nursing salary after the ADN portion while finishing your bachelor’s.
Prerequisites Can Add Time
One detail that catches many people off guard: most accelerated programs require science prerequisites before you can start. Common requirements include anatomy and physiology, microbiology, chemistry, statistics, and nutrition. If your first degree was in English, business, or another non-science field, you may need six months to a year to complete these courses at a community college or university.
The American Association of Colleges of Nursing notes that fast-track baccalaureate programs take 11 to 18 months “including prerequisites,” which suggests some programs build prerequisite coursework into their timelines. But many do not. Check individual program requirements carefully, because a 12-month ABSN can easily become a 20-month journey if you need two semesters of science courses first.
What the Application Timeline Looks Like
Most ABSN programs have rolling or seasonal admissions, and you’ll need to plan roughly a year ahead. SUNY Downstate, for example, recommends applying in September for a start date the following fall, with final application deadlines falling between January and March. Competitive programs fill quickly, and many require prerequisite courses to be completed (or nearly completed) by the time you apply. If you’re starting from scratch on prerequisites, a realistic timeline from “I’ve decided to become a nurse” to “I’m starting the program” is about 12 to 18 months before classes even begin.
From Graduation to Working as a Nurse
After finishing your nursing program, you still need to pass the NCLEX-RN exam to get your license. Most graduates register for the exam during their final month of school. The test itself is computerized and available year-round, so there’s no waiting for a specific test date. Many new graduates sit for the NCLEX within a few weeks of graduating and receive results within 48 hours. State licensing boards then process the official license, which can take anywhere from a few days to several weeks depending on the state.
In practical terms, most people go from graduation to licensed RN in about one to two months.
Choosing the Right Path
- Fastest route to RN: ABSN (12 to 18 months of coursework, plus any prerequisite time)
- Most affordable route: ADN at a community college, then RN-to-BSN bridge (about 2.5 to 3 years total, but you can work as an RN partway through)
- Best for advanced practice: Direct-entry MSN or NP program (2 to 3 years, ending with a master’s degree and eligibility for nurse practitioner certification)
Your choice depends on how quickly you want to start working, how much you can invest in tuition, and whether you see yourself eventually moving into a nurse practitioner or leadership role. The ABSN is the most popular option for career changers because it balances speed with the BSN credential that most hospitals now prefer for hiring.