Swift strings have changed in every release since the language was first announced, but even after so much change its older counterpart, NSRange , still appears in many UIKit APIs.

Fortunately, Swift 4 introduced a simple way to convert any NSRange into a regular Swift Range . For example, say you had the following string and range:

let input = "Hello, world"
let range = NSMakeRange(0, 10)

To make that into a Swift Range instance you just need this single line of code:

let swiftRange = Range(range, in: input)

SPONSORED Join some of the App Store’s biggest apps—from brands like Mojo and Citizen to thriving indies. Test pricing, run paywall experiments, update locked features, and now, launch web checkout links straight from your app—all without updates. Superwall is your complete growth toolkit.

Try now

Available from iOS 7.0

Similar solutions…

• How to use Core Spotlight to index content in your app
• How to search your app’s Spotlight index
• How to find the index of the first matching array element
• How to change the order of view layering using Z index
• How to convert dates and times to a string using DateFormatter

About the Swift Knowledge Base

This is part of the Swift Knowledge Base , a free, searchable collection of solutions for common iOS questions.

Swift, SwiftUI, the Swift logo, Swift Playgrounds, Xcode, Instruments, Cocoa Touch, Touch ID, AirDrop, iBeacon, iPhone, iPad, Safari, App Store, watchOS, tvOS, visionOS, Mac and macOS are trademarks of Apple Inc., registered in the U.S. and other countries. Pulp Fiction is copyright © 1994 Miramax Films.

Hacking with Swift is ©2025 Hudson Heavy Industries .