In iOS 18, Apple has added a powerful new feature to your iPhone's Calculator app: Math Notes. This integration between Calculator and Notes offers a versatile tool for all your calculation needs. It's particularly handy for splitting bills, calculating group expenses, or working through more complex mathematical problems.

ios 18 math notes
Math Notes allows you to type equations directly into a note, with automatic solving when you add an equals sign. You can perform a wide range of calculations, including defining variables for more complex math. For example, if you're planning a night out, you could write "dinner = $57" and "movies = $24" in a note, then simply type "dinner + movies =" to get the total cost.

Here's how you can start using Math Notes in the Calculator app in iOS 18:

  1. Open the Calculator app on your iPhone.
  2. Tap the calculator symbol at the bottom left of the screen.
  3. Select Math Notes from the options.
    calculator

  4. Tap the new note symbol in the bottom right corner.
  5. Start typing your calculations.
    calculator

You're not limited to accessing Math Notes through the Calculator app – you can also use the feature directly within the Notes app using any new or existing note.

If you need to switch back to the standard calculator while using Math Notes, simply tap the calculator icon again and choose either Basic or Scientific mode.

You can in fact get Math Notes results almost anywhere in the operating system. If you type an equation into search, for example, you'll get a result, and the same goes for apps like Messages.

Math Notes on iPad

In ‌iPadOS 18‌, Math Notes works in the same way, but there is an added bonus - you can use an Apple Pencil. Once you start a Math Note from the Calculator app or the Notes app, you can write your equations by hand and have them solved in the exact same way.

ipados 18 math notes
Note that Math Notes not only supports calculations written with Western Arabic numerals and common mathematical symbols, but also calculations using Arabic (Eastern & Western) and Devanagari numerals.

Popular Stories

Apple Announces Special Event in New York Feature

Apple Announces Special Event in New York, London, and Shanghai on March 4

Monday February 16, 2026 6:05 am PST by
Apple today announced a "special Apple Experience" in New York, London, and Shanghai, taking place on March 4, 2026 at 9:00am ET. Apple invited select members of the media to the event in three major cities around the world. It is simply described as a "special Apple Experience," and there is no further information about what it may entail. The invitation features a 3D Apple logo design...
M3 iPad Air

Apple's Next Two Products Are Coming Soon

Thursday February 12, 2026 11:17 am PST by
Apple plans to release an iPhone 17e and an iPad Air with an M4 chip "in the coming weeks," according to the latest word from Bloomberg's Mark Gurman. "Apple retail employees say that inventory of the iPhone 16e has basically dried out and the iPad Air is seeing shortages as well," said Gurman. "I've been expecting new versions of both (iPhone 17e and M4 iPad Air) in the coming weeks."...
iphone 17 pro dark blue 1

Gurman: iPhone 18 Pro Could Be Underwhelming

Monday February 16, 2026 4:24 am PST by
Apple's upcoming iPhone 18 Pro and iPhone 18 Pro Max models "won't be a big update," according to Bloomberg's Mark Gurman. In the latest edition of his "Power On" newsletter, Gurman said that the iPhone 18 Pro models will "represent minor tweaks from last year's iPhone 17 Pro and 17 Pro Max." He compared the upgrade to Apple's past practice of appending the letter "S" to its more minor...
Apple Announces Special Event in New York Feature 1

Apple Event on March 4: Here's What to Expect

Tuesday February 17, 2026 8:08 am PST by
Apple on Monday invited selected journalists and content creators to a "special Apple Experience" on Wednesday, March 4 in New York, London, and Shanghai. At an Apple Experience, attendees are typically given the opportunity to try out Apple's latest hardware or software. Following the launch of Apple Creator Studio last month, for example, some content creators attended an Apple Experience...
Coffee Burgundy and Purple iPhone 18 Pro Mock

Five iPhone 18 Pro Features Revealed in New Report

Friday February 13, 2026 8:43 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are still seven months away, an analyst has revealed five new features the devices will allegedly have. Rumored color options for the iPhone 18 Pro models In a research note with investment firm GF Securities on Thursday, analyst Jeff Pu outlined the following upgrades for the iPhone 18 Pro models: Smaller Dynamic Island: It has been rumored...