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multipleOf JSON Schema Keyword

Use multipleOf to require numbers to align to a step size, such as cents, pack sizes, grid units, or batch increments.

Number

Schema template

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JSON Schema

{
  "type": "number",
  "multipleOf": 5
}

Valid example JSON

25

Invalid example JSON

23

Fields

FieldTypeRequiredDescription
multipleOfnumberYesThe value must divide evenly by this number. Use positive numbers only.

How to use this schema

multipleOf is practical for quantities that must move in fixed increments. Be careful with decimal fractions because floating-point behavior can differ across validators.

Version support and combinations

This keyword or pattern is commonly supported across modern JSON Schema workflows. Check your validator for Draft-04, Draft-07, 2019-09, and 2020-12 behavior before relying on newer composition or conditional features.

Common combination: pair this reference with type, required, and properties so validation errors are specific enough for API clients and form users.

Batch validation seed

Want to validate JSON Schema in bulk? Toolumina Pro can grow into batch validation for 100+ files, saved schemas, and repeatable API contract checks.

Related reference pages

minimum JSON Schema KeywordUse minimum to require a numeric value to be greater than or equal to a lower bound.maximum JSON Schema KeywordUse maximum to require a numeric value to be less than or equal to an upper bound.type JSON Schema KeywordUse type to require a JSON value to be a string, number, integer, boolean, object, array, or null before other rules are evaluated.