Estimate ten year fracture risk from clinical risk factors and bone density.
Fracture risk is driven by age and clinical risk factors as much as by bone density, which is why treatment decisions use absolute risk rather than T-score alone. This is a simplified approximation of the published model. Many fractures occur in people whose density is not in the osteoporosis range, which is precisely why absolute risk assessment replaced density thresholds.
FRAX Fracture Risk
Risk rises multiplicatively with age, falling T-score and each clinical risk factor
This reproduces a published formula for educational and reference use only. It is not a diagnostic tool, does not account for individual clinical context, and must not be used to make or change treatment decisions. Clinical assessment by a qualified healthcare professional is always required. This is a rough approximation and not the validated FRAX tool, which requires country-specific calibration. Use the official FRAX calculator for your country and discuss results with a healthcare professional.
Risk rises multiplicatively with age, falling T-score and each clinical risk factor Fracture risk is driven by age and clinical risk factors as much as by bone density, which is why treatment decisions use absolute risk rather than T-score alone. This is a simplified approximation of the published model.
Many fractures occur in people whose density is not in the osteoporosis range, which is precisely why absolute risk assessment replaced density thresholds.
This calculator takes 5 inputs: Age, Sex, Body mass index, Femoral neck T-score, Clinical risk factors present. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.