Free AI-Trained Biological Age Test

NOVOS, the world’s leading consumer platform for human longevity, offers the ENABL Age biological age clock free of charge to the general public, as part of its commitment as a Public Benefit Corporation. NOVOS’ mission is to make longevity accessible and achievable for all.

ENABL Age is a second generation, survey-based biological age clock that provides greater accuracy than first generation, blood-based, epigenetic biological age clocks. The clock, created by researchers at the University of Washington, and overseen by Professor Su-In Lee, and in collaboration with Dr. Matt Kaeberlein, was trained using both blood test results and survey questions from tens of thousands of people. After being trained using XAI (Explainable Artificial Intelligence), the algorithm is capable of producing accurate biological age outputs based on simple questionnaire responses about your lifestyle and health behaviors.

Learn more about the science behind the test here or check out our free AI test to analyze your face age

Ethnicity *

• American Indian or Alaska Native
• Black or African American
• Caucasian
• Hispanic or Latino
• Native Hawaiian or Other Pacific Islander
• South Asian
• East Asian or South East Asian

Select all that apply.

Sex assigned at birth *

• Male
• Female

What is your highest level of education? *

• Less than 9th grade
• 9-11th grade (includes 12th grade with no diploma)
• High school grad/ged or equivalent
• Some college or AA degree
• College graduate or above

What is your birthdate? *

For fast input, click the "Year" — eg 2024, to skip to your year of birth.

For how many months have you been working in your main job? *

The algorithm behind this biological age clock is based upon NHANES survey data (similar to UK Biobank), some of which includes employment characteristics correlated with aging and health. Learn more.

What is your longest job duration in months? *

The algorithm behind this biological age clock is based upon NHANES survey data (similar to UK Biobank), some of which includes employment characteristics correlated with aging and health. Learn more.

Are you a citizen of the United States? *

• Yes
• No

How many members are in your household? *

What is your household annual income? *

In United States Dollar ($USD). Currency converter here. The algorithm behind this biological age clock is based upon NHANES survey data (similar to UK Biobank), some of which includes housing characteristics correlated with aging and health. Learn more.

How many rooms do you have in your home? Count kitchens; do not count bathrooms, laundry rooms, or unfinished basements. *

The algorithm behind this biological age clock is based upon NHANES survey data (similar to UK Biobank), some of which includes housing characteristics correlated with aging and health. Learn more.

What is your self-reported weight at age 25? If not 25 yet, report your current weight (lbs) *

Convert kgs to lbs here. Do not include weight during pregnancy.

What is your lifetime heaviest weight? (lbs) *

Convert kgs to lbs here. Do not include weight during pregnancy.

What is your arm circumference? (inches) *

Average circumference is 13 inches or 33 centimeters. Convert cm to in here. Use a measuring tape to measure at your mid-upper arm with your arm relaxed by your side. If you don't have a measuring tape, you can indirectly measure by using a string and then placing the string along a ruler to get the length.

Do you experience a shortness of breath on stairs and/or inclines? *

• Yes
• No

What is your history of tobacco smoking or vaping? *

• I used to smoke/vape but no longer do
• I smoke/vape socially, less than 3 times per week
• I smoke/vape once to twice daily
• I smoke/vape more than twice daily
• I have never smoked and I have never regularly vaped

Have you smoked at least 100 cigarettes in your life? *

• Yes
• No

How often do you consume alcohol? *

• Daily
• Weekly
• Monthly
• Rarely
• Never

What is the average number of alcoholic drinks per day you've consumed for the past 12 months? *

Remember, this is asking for average drinks per day. To estimate, divide the number of drinks you consume per week by 7 days. Whole integers only (no decimals).

What is your relationship status? *

• I have a partner, who typically contributes to my happiness
• I have a partner, but it’s a stressful relationship
• I don’t have a consistent partner

Are you widowed? *

• Yes
• No

What is your general health condition? *

• Excellent
• Very good
• Good
• Fair
• Poor

Do you now have any health problem that requires you to use special equipment, such as a cane, a wheelchair, a special bed, or a special telephone? *

• Yes
• No

What is your systolic blood pressure? (mmHg) *

The top number of your blood pressure, e.g. "120" from 120/70. If you don't have an at-home blood pressure measuring device, visit your doctor's office or local pharmacy. Note: if you estimate from memory, the accuracy of your biological age will be lessened. Sample blood pressures here.

What is your diastolic blood pressure? (mmHg) *

The bottom number of your blood pressure, e.g. "70" from 120/70. If you don't have an at-home blood pressure measuring device, visit your doctor's office or local pharmacy. Note: if you estimate from memory, the accuracy of your biological age will be lessened. Sample blood pressures here.

Email *

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