WHO-5 Wellbeing Percent of Max Calculator
WHO5five independently assigned0–5items, rawsum×4percentage of maximum100; does not infer diagnosis or thresholds. Actual independently qualified instrument/cohort/matching units; no diagnosis, causal outcome, validated personal prediction or universal clinical cutoff.
Description
WHO-5 totals five independently coded wellbeing responses on a 0–5 scale.
WHO-5 totals five independently coded wellbeing responses on a 0–5 scale.1
Multiplying their raw sum by four expresses the percentage of the maximum score. The calculation and input requirements are explained below.
When to use WHO-5 Wellbeing Percent of Max Calculator
Enter exactly five integer WHO-5 item codes from 0 to 5.
How to use WHO-5 Wellbeing Percent of Max Calculator and how it works
- Prepare the measurements or independently established model inputs described below, with matching units and observation scope.
- Enter the required fields and run WHO-5 Wellbeing Percent of Max Calculator.
- Read the result fields using the formula, output units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualWho5ItemCodes | Actual Who5 Item Codes. Use the units and matching context stated in the calculation below. | array of number | Required; other constraints below |
Enter exactly five integer WHO-5 item codes from 0 to 5. Sum the codes and multiply by four. The output runs from 0 to 100 as percentage of maximum; the tool does not administer the questionnaire or assign diagnostic bands.
wellbeingPercent=4*sum(fiveItemCodes) Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Numeric result under the formula and output units explained above. | number |
{
"input": {
"actualWho5ItemCodes": [
1,
2,
3,
4,
5
]
},
"output": {
"result": {
"value": 60
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
WHO describes WHO-5 as a five-statement self-report wellbeing instrument using a six-point response scale. This tool expects independently established item codes and only converts the total to percentage of maximum.2
Alternative or Complementary methods
Use Reverse-Code Item Transform Tool for a complementary operation: Reverse coding reflects an item score between its scale endpoints.
Use Likert Sum to Mean Rescaler for a complementary operation: A mean item score divides a scored total by completed items.
References
-
WHO: World Health Organization-Five Well-Being Index — World Health Organization
Similar or alternative tools
- Reverse-Code Item Transform Tool
Reverse coding reflects an item score between its scale endpoints.
- Likert Sum to Mean Rescaler
A mean item score divides a scored total by completed items.