Assess your risk of fracture The fracture risk calculator below asks five basic questions about your medical history and health to assess your risk of breaking a bone.

The calculator is based on a mathematical formula developed by Australian researchers to compute a person’s fracture risk "score," or level of risk. In research studies the formula was 75% accurate in predicting older women’s risk of fracture within a two-year period.

Many experts believe this new scoring method is more accurate than other measurements. But it doesn't take all of your medical factors into account, so your actual fracture risk may be lower or higher than the calculator indicates.

You may want to re-calculate your score every few years -- or more often if you experience any falls, fracture or significant weight gain or loss. You also should look over the list of fracture risk factors to see which health issues and lifestyle habits can increase your fracture risk.

Fracture risk calculator.

To calculate your score, you'll need to know your most recent bone mineral density (BMD) test results. If you don't know your results, or want help answering the questions, print out the calculator questions. Take them to your next doctor visit, and come back to this page when you have all the information you need.

If you haven't had BMD tests, ask your doctor about scheduling them. BMD tests use x-rays to measure bone thickness, and they're painless and non-invasive. Note: This calculator is meant to serve as a reference tool only. The most accurate way to gauge your overall fracture risk is to consult your physician.

Os-Cal Fracture Risk Calculator

1.) How many times did you fall in the previous year?*

2.) Since you were 20, how many fractures have you had?

3.) What is your weight?

4.) What is the bone mineral density in your spine?

5.) What is the bone mineral density in your femoral neck bone?
(Your femoral neck bone is in your upper thigh, near the hip joint.)

If your score is between 0 and 5.3, you may be at lower risk of having a fracture within the next two years. The lower your score, the lower your risk. If you are taking proactive steps to protect your bones, keep up the good work. Taking Os-Cal every day can help you to maintain strong bones and prevent bone loss as you get older.

If your score is between 5.4 and 10, you may be at higher risk of having a fracture within the next two years. The higher your score, the greater your risk. If you're not currently using calcium, taking Os-Cal every day is an easy way to strengthen your bones. In addition to calcium supplementation, your doctor may recommend other medications or lifestyle changes to prevent fracture and osteoporosis.