About IBIS

This risk assessment tool was developed by scientists at the Wolfson Institute of Preventive Medicine, Queen Mary University of London and is provided for non-commercial research purposes only. No responsibility is accepted for clinical decisions arising from its use.

This risk assessment calculator is available to individuals only; it is not for clinical or commercial use. Commercial use requires a license.

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Breast Cancer Risk Calculator

Powered by IBIS in Partnership with Ikonopedia

IBIS Risk Assessment Tool v8.0b

This tool estimates the likelihood of a woman developing breast cancer specifically within 10 years of her current age and over the course of her lifetime. The tool is utilized to inform women and help support the decision making process for genetic counseling and testing.

The risks provided account for competing mortality, so there is allowance for death from other causes than breast cancer.

Note: This tool is NOT intended to assess the risk for women who have already been diagnosed with breast cancer.

System of Measurement:
  • Imperial Units
  • Metric Units
Breast Density Measure:
  • Unknown
  • Volpara
  • VAS
  • BI-RADSĀ® ATLAS*
Personal History: Please enter your age, weight and height below...
Current Age:
Weight:
lbs
Height:
Feet:
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Inches:
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What was your age at the time of her first menstrual period?
Have you given birth to one or more children?
  • Unknown
  • No
  • Yes
Have you gone through menopause?
  • Don't Know
  • No
  • Yes
  • In Menopause Now
Hormone Replacement Therapy (HRT) Usage?
  • Never
  • Stopped use 5 or more years ago
  • Stopped use less than 5 years ago
  • Current User
BRCA Gene: Do you have a mutation in either the BRCA1 or BRCA2 gene?
  • Unknown
  • Tested, Normal
  • BRCA1+
  • BRCA2+
Ovarian Cancer: Have you had OVARIAN cancer?
  • No
  • Yes
Breast Biopsy: Have you had a breast biopsy?
  1. No prior biopsy / no proliferative disease
  2. Prior biopsy, result unknown
  3. Hyperplasia (not atypia)
  4. Atypical Hyperplasia
  5. Lobular Carcinoma in Situ (LCIS)
Family History:
Family history is an important factor in determining risk, especially if there is a history of breast or ovarian cancer in the woman's family.
Ashkenazi Inheritance?
  • No
  • Yes
To add a family member to your family history, click the "Add Family Member" button below
Add Family Member

This site is provided free for individual patient use only. By clicking the calculate button I certify that I am calculating my own personal risk score and not on behalf of a medical practice.
Clear Risk Factors
Calculate Risk