The TI-RADS Calculator helps clinicians accurately assess thyroid nodules using the American College of Radiology (ACR) Thyroid Imaging Reporting and Data System, introduced in 2017 to reduce unnecessary biopsies and standardize reporting. This interactive tool makes ultrasound evaluation simple and consistent, providing clear malignancy risk estimates and guidance based on ACR criteria. While this calculator follows the ACR TI-RADS classification, it is not officially endorsed by the ACR. Use it to streamline your diagnostic process, document findings efficiently, and support confident, evidence-based clinical decisions.
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ACR TI-RADS Calculator
Enter ultrasound features to calculate the TI-RADS category, malignancy risk & recommended follow-up interval
Source: Radiopaedia – ACR Thyroid Imaging Reporting & Data System (ACR TI-RADS)
Medical Disclaimer
This TI-RADS Calculator is provided for educational and informational use only to support the evaluation of thyroid nodules according to their ultrasound features. It is not intended to replace professional medical judgment, diagnosis, or treatment.
Although every effort has been made to maintain accuracy and consistency with the 2017 ACR TI-RADS guidelines, this tool may not reflect individual patient differences or the most current medical recommendations. Results should be interpreted in the context of a complete clinical assessment by a qualified healthcare provider.
Always seek advice from a licensed medical professional or specialist regarding any questions or concerns about your health. Do not ignore or postpone professional medical consultation based on information obtained from this calculator.
Use of this calculator is entirely at your own discretion. The creators of this tool accept no liability for clinical decisions, outcomes, or actions taken based on its use.
New to TI-RADS?
Not sure what each feature means or how the score is calculated? Our quick guides explain how to use the TI-RADS calculator, what your results mean, and how the TI-RADS system works in ultrasound reporting.