Outliyr Biological Age Calculator
Measure the biological age of 8 body systems in about 5 minutes.
The Outliyr calculator is the only multi-facet biological age assessment that combines a questionnaire with optional wearable sync (Oura, Apple Health, Whoop) and optional bloodwork panel (glucose, HbA1c, hs-CRP, LDL, HDL, triglycerides, ALT, AST). Most online biological age tools score only a single composite. Outliyr returns a composite plus 8 sub-scores so you know which system is aging fastest and which interventions to prioritize.
The 8 body systems scored
Cardiovascular
Heart and circulation: how efficiently your body delivers oxygen during effort and at rest.
Sample question: How winded are you after climbing two flights of stairs โ not at all, slightly, very, or cannot finish?
Metabolic
Blood sugar control, insulin sensitivity, and how your body handles carbs and fasting.
Sample question: After a carb-heavy meal, do you crash โ never, sometimes, often, or always?
Inflammatory
Chronic low-grade inflammation: joint discomfort, recovery, allergy load, alcohol tolerance.
Sample question: Rate your joint and body pain on a typical day, from 0 (none) to 10 (severe).
Immune
Infection frequency, speed of recovery, and reactivation of dormant viruses like cold sores.
Sample question: How many colds or flu do you catch per year โ zero, one-to-two, or three or more?
Musculoskeletal
Functional strength: how easily you stand from a chair, do push-ups, and climb stairs.
Sample question: Standing from a chair without using your hands is: easy, some effort, hard, or you need help.
Neuro-cognitive
Mental sharpness, brain fog frequency, word recall, and bedtime consistency.
Sample question: Rate your mental sharpness today, from 0 (foggy) to 10 (crystal clear).
Hormonal / Stress
HPA-axis tone: perceived stress, afternoon energy dips, and your daily energy curve.
Sample question: How stressed have you felt this month โ calm, some stress, high stress, or burned out?
Sleep / Circadian
Sleep quality and chronotype โ how restorative your sleep is and when you run best.
Sample question: Rate your overall sleep quality this month, from 0 (terrible) to 10 (great).
What your result looks like
Composite biological age: a single number (for example, 37.4) that represents your overall rate of aging, weighted across all 8 body systems.
Delta vs chronological age: the gap between your biological and calendar age (for example, -4.6 years younger or +3.1 years older). Negative is better.
8-axis radar chart: a visual octagon where each corner is one body system. Corners pulled close to the center = younger; corners pushed out = older. This is the "mini-radar" that makes it obvious at a glance which systems are dragging your overall age up or down.
Strongest system: the body system with the youngest sub-age (for example, "Cardiovascular: 31.2 โ 7 years younger than chronological").
Weakest system: the body system with the oldest sub-age and the highest-leverage interventions to reverse it (for example, "Metabolic: 44.8 โ focus on zone-2 cardio, time-restricted eating, continuous glucose monitoring").
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