CAGE Questionnaire Calculator

There is no point reaching for a calculator that cannot show its working. This one starts from a, please tick the corresponding box if you ever…, eye and g and reports cage, so you can see how each answer follows from the numbers you entered.

What Is the CAGE Questionnaire Calculator?

The cage questionnaire calculator gives you an estimate of cage based on a, please tick the corresponding box if you ever..., eye and g.

It is a quick reference figure rather than a diagnosis, and it is most useful for tracking how a number moves over time rather than for interpreting a single reading.

How the CAGE Questionnaire Estimate Is Worked Out

The calculation follows published reference relationships, so it is a reasonable approximation when the inputs are accurate. It assumes an average adult and does not account for individual variation.

If you are comparing two people, or the same person over a period of weeks, keep the method and the inputs identical. A change in the method can easily look like a change in the person.

What This Calculator Does Not Do

It does not diagnose anything, and it does not replace advice from a clinician. If a figure comes out at an extreme, or if it differs sharply from what you expect, that is a reason to speak to a professional rather than to adjust the inputs.

Nothing you type here is stored or sent anywhere. The whole calculation happens in your browser.

A Worked Example

Working through an example, with a set to 1, please tick the corresponding box if you ever... set to 1, eye set to 1, the calculator returns cage of 1,111. Substitute your own figures and the same steps produce the same kind of answer.

Frequently Asked Questions

What do I need to work out cage?

Enter a, please tick the corresponding box if you ever..., eye and g. The calculator then works through the relationship and reports cage.

What does the cage questionnaire actually calculate?

It takes a, please tick the corresponding box if you ever..., eye and g and converts them into cage using the standard relationship for this problem. Each step is applied in turn, so every output is traceable back to the numbers you typed in.

How should I enter a?

Use the value you actually have, in the unit shown next to the field. Enter every value in the same unit system. The calculator assumes the figures you supply are consistent, so it cannot correct a mistake that happens before the calculation starts.

Why does a small change in one value move the answer so much?

That happens when an output depends on a ratio, because dividing by a small number magnifies any change in it. Check the units first, then check whether the value you entered is in the range the relationship was designed for.

Do I have to fill in every field?

Only the fields a particular result depends on. If you leave one blank, the results that need it simply show a note instead of a number, and everything else still works.

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