# NumberFormatStyleConfiguration.Precision A structure that an integer format style uses to configure precision. ``` struct Precision ``` ## Topics ### Precision configurations [`static func significantDigits(R) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/significantDigits(_:)-2rp7g) Returns a precision that constrains formatted values to a range of significant digits. [`static func significantDigits(Int) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/significantDigits(_:)-9dvpr) Returns a precision that constrains formatted values to a given number of significant digits. [`static func integerAndFractionLength(integerLimits: R1, fractionLimits: R2) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/integerAndFractionLength(integerLimits:fractionLimits:)) Returns a precision that constrains formatted values to ranges of allowed digits in the integer and fraction parts. [`static func integerAndFractionLength(integer: Int, fraction: Int) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/integerAndFractionLength(integer:fraction:)) Returns a precision that constrains formatted values a given number of allowed digits in the integer and fraction parts. [`static func integerLength(R) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/integerLength(_:)-u8ua) Returns a precision that constrains formatted values to a range of allowed digits in the integer part. [`static func integerLength(Int) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/integerLength(_:)-1njyz) Returns a precision that constrains formatted values to a given number of allowed digits in the integer part. [`static func fractionLength(R) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/fractionLength(_:)-w6fk) Returns a precision that constrains formatted values to a range of allowed digits in the fraction part. [`static func fractionLength(Int) -> NumberFormatStyleConfiguration.Precision`](/documentation/Foundation/NumberFormatStyleConfiguration/Precision/fractionLength(_:)-3wkd9) Returns a precision that constrains formatted values to a given number of allowed digits in the fraction part. ## Relationships ### Conforms To [`Encodable`](/documentation/Swift/Encodable) [`Equatable`](/documentation/Swift/Equatable) [`Sendable`](/documentation/Swift/Sendable) [`Decodable`](/documentation/Swift/Decodable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Hashable`](/documentation/Swift/Hashable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)