What is a Holland Code?
A Holland Code is a short label, usually three letters, that describes the kinds of work you enjoy most. It comes from the theory of psychologist John L. Holland, who first published it in 1959 and later spent the rest of his career at Johns Hopkins University.
Holland proposed that both people and work environments can be described with six interest types:
- Realistic
- Investigative
- Artistic
- Social
- Enterprising
- Conventional
Together they spell RIASEC, which is why a Holland Code test is also called a RIASEC test. The core idea is simple: people tend to be more engaged in work that matches their interests.
The model is still in wide use. The U.S. Department of Labor’s O*NET database tags occupations with interest codes. Electricians are coded RC (Realistic, Conventional), for example, and registered nurses are coded SCI (Social, Conventional, Investigative).
How does the free Holland Code test above work?
The test above is an interest inventory: a list of activities you rate by how much you would like doing them. It has 48 items, eight for each RIASEC type, mixed together so the types alternate.
A few tips for useful results:
- Rate interest, not ability. “Write code to solve a logic puzzle” is about whether it sounds enjoyable, not whether you know how.
- Ignore pay and training for now. Those come later, when you compare specific careers.
- Go with your first reaction. Overthinking pushes every answer toward the middle.
- Answer for yourself, not for what your family, boss or school expects.
When you finish, your highest-scoring types form your code. The first letter is your strongest interest, the second is next, and so on.
What are the six RIASEC types?
| Type | Nickname | Enjoys work that involves | Sample careers |
|---|---|---|---|
| Realistic (R) | The Doers | Building, repairing and operating tools, machines and equipment, often outdoors | Electrician, plumber, wind turbine service technician, civil engineer |
| Investigative (I) | The Thinkers | Researching, analyzing data and solving complex problems | Software developer, data scientist, chemist, pharmacist |
| Artistic (A) | The Creators | Creating original visual art, writing, performances or designs | Graphic designer, writer, art director, animator |
| Social (S) | The Helpers | Teaching, advising, caring for or serving other people | Registered nurse, teacher, counselor, dental hygienist |
| Enterprising (E) | The Persuaders | Leading, selling, negotiating and managing, usually in business | Sales manager, lawyer, real estate agent, construction manager |
| Conventional (C) | The Organizers | Following procedures to organize data, records and processes | Accountant, paralegal, payroll clerk, database administrator |
Realistic: the Doers
Realistic people like hands-on work with real objects. They often prefer practical results they can see, like a working engine or a finished building, over abstract discussion. Many skilled trades score high here.
Investigative: the Thinkers
Investigative people enjoy figuring out how things work. They like research, math, science and data, and they are comfortable with problems that take a long time to solve.
Artistic: the Creators
Artistic people want to make something original. They tend to prefer flexible settings with room for self-expression, whether through design, writing, music or performance.
Social: the Helpers
Social people are energized by helping others learn, heal or grow. Teaching, health care and counseling careers cluster here.
Enterprising: the Persuaders
Enterprising people like to lead, influence and compete. They are drawn to sales, management, law and starting businesses, where results and decisions matter.
Conventional: the Organizers
Conventional people like clear procedures, accuracy and order. They do well with records, numbers, schedules and systems, often in business, finance or legal settings.
How do you read your 3-letter Holland Code?
Order matters. SCE and CES use the same letters but describe different work. On O*NET, educational, guidance and career counselors are coded SCE: mostly helping people, with structure and some leadership. Executive secretaries and executive administrative assistants are coded CES: mostly organizing information, with some business and people contact.
Look at the hexagon. Holland arranged the six types around a hexagon in the order R, I, A, S, E, C. Types next to each other are the most alike, and types across from each other are the least alike:
- Realistic is opposite Social
- Investigative is opposite Enterprising
- Artistic is opposite Conventional
A code made of neighbors, such as RIC or SEC, describes a focused set of interests. A code with opposites, such as RSE, is less common but not a problem. It suggests you want variety, such as hands-on work that also involves people.
Check the gaps between scores. If your top two or three scores are close, treat them as roughly equal and search careers using each order. If one type is far ahead of the rest, start there.
How do you use your results on O*NET OnLine?
O*NET OnLine (onetonline.org) is a free career database sponsored by the U.S. Department of Labor. It is the most direct way to turn your code into a list of jobs.
- Open the Browse by Career Interest Types page on O*NET OnLine.
- Click your first letter. You will see occupations with that interest type and their full interest codes.
- Use the Second interest and Third interest menus to narrow the list to your code.
- Filter by Job Zone, which shows how much preparation a job needs. Job Zone 1-2 usually requires a high school diploma or GED, Zone 3 vocational training or an associate degree, Zone 4 a bachelor’s degree, and Zone 5 graduate school.
- Open any occupation to read its tasks, skills, wages and outlook.
For example, someone with an RCI code would find automotive service technicians, wind turbine service technicians and aircraft mechanics, all coded RCI and all in Job Zone 3. Someone with an EC code would find sales managers, marketing managers and general and operations managers, all in Job Zone 4.
If your code is R or C heavy and you want to avoid a four-year degree, our list of high paying jobs without a degree is a good next stop.
What can a Holland Code test tell you, and what can’t it?
It can:
- Point you toward work activities you are likely to enjoy
- Give you a shared language to use with career counselors
- Help you narrow hundreds of occupations to a manageable shortlist
It cannot:
- Measure your skills, aptitude or intelligence
- Account for pay, job openings, location or the training you can afford
- Guarantee you will like or succeed in a matching job
The research backs this middle-ground view. A 2010 review in the Journal of Counseling Psychology found considerable support for the RIASEC types and how they are ordered, but only modest predictive power for the idea that a good person-job match leads to better outcomes. Your interests matter, but so do pay, working conditions, coworkers and your own circumstances.
How does this test compare with other interest inventories?
| Inventory | Who publishes it | Length | Cost |
|---|---|---|---|
| JobQuix Holland Code test (above) | JobQuix | 48 original items | Free |
| O*NET Interest Profiler, Mini-IP | U.S. Department of Labor O*NET program | 30 questions, web-based | Free |
| O*NET Interest Profiler, Short Form | U.S. Department of Labor O*NET program | 60 questions, paper | Free |
| Self-Directed Search | PAR, Inc. (developed by John L. Holland) | Questionnaire that produces a three-letter Summary Code | Paid ($18.95 for single online use) |
All of these measure the same six RIASEC types, so your results should point in a similar direction. Taking a second inventory is a good way to check whether a close score is real.
What should you do after you get your Holland Code?
- Shortlist three careers that match your code and a Job Zone you are willing to train for.
- Talk to someone in each one. A 15-minute call reveals more than any test.
- List your transferable skills and the gaps you would need to close. Our skills for a resume guide helps you name them.
- Plan the move. If you are switching fields midcareer, our step-by-step career change at 40 plan covers training options and financial runway.
- Update your resume summary for the new target. See our resume summary examples for career-changer versions.