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

sam sung auction

Former Apple Employee Sam Sung Changed His Name to Avoid Attention

Wednesday October 22, 2025 4:44 pm PDT by
Back in 2012, an Apple retail employee named Sam Sung went viral because his name is similar to Samsung, one of Apple's main competitors. In a recent interview with Business Insider, he detailed that period in his life, how Apple responded, and he explained why he ultimately changed his name. Someone posted an image of Sung's Apple business card on Reddit in 2012, and it spread rapidly....
iOS 26

iOS 26.1 Coming Soon With These 8 New Features for Your iPhone

Wednesday October 22, 2025 6:15 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. iOS 26.1 is currently in beta testing. The update will likely be released in the first half of November, and it is compatible with the iPhone 11 series and newer, but some...
iOS 26 Battery Glass Feature

iOS 26.1 Beta Liquid Glass Battery Drain Test: Tinted vs Clear Mode

Friday October 24, 2025 2:30 pm PDT by
In the fourth iOS 26.1 beta, Apple added a "Tinted" option that reduces the translucency of Liquid Glass for those who prefer a more opaque look. I saw some comments wondering whether the setting might preserve battery life, so I thought I'd do some testing. Test Settings I did four separate tests using the iPhone 17 Pro Max, and I kept the parameters as similar as possible. Here are the...
All Screen iPhone 2027 Feature 1

Report: Apple to Skip 'iPhone 19' Name for 'iPhone 20'

Thursday October 23, 2025 4:28 am PDT by
Apple's new iPhone lineup launched in the fall of 2027 will be called the "iPhone 20" models, rather than the "iPhone 19," according to research firm Omdia. Speaking at a conference in Seoul (via ETNews), Omdia Chief Researcher Heo Moo-yeol corroborated rumors that Apple plans to move the launch of its standard iPhone to the first half of the year and provided some additional clarity about...
trump white house ballroom

Apple Donating to Trump's $350M White House Ballroom Project

Thursday October 23, 2025 3:55 pm PDT by
Apple is one of several tech companies that will contribute to the construction of U.S. President Donald Trump's 90,000-square-foot ballroom, reports CNN. Construction began on the ballroom this week, and the White House's east wing was torn down. Trump claims that the ballroom will cost $350 million, and that it will be privately funded through donations. The cost has already increased $150 ...
apple wallet drivers license feature iPhone 15 pro

iPhone Driver's License Feature in Apple Wallet App Launches in Another U.S. State

Thursday October 23, 2025 7:44 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Starting today, the feature is available to residents of West Virginia. To set it up, open the Wallet app and tap on the plus sign in...
cadillac lyric infotainment

GM to Remove CarPlay from All Future Vehicles, Including Gas Cars [Updated]

Wednesday October 22, 2025 11:34 am PDT by
General Motors began phasing out support for CarPlay in its electric vehicles back in 2023, leading to complaints from iPhone users, but the company has no plans to back down. In fact, GM is going further and plans to remove CarPlay from all future gas vehicles, too. In an interview with The Verge, GM CEO Mary Barra said that the company opted to prioritize its platform for EVs, but the...
iPhone Air

Report: 'Virtually No Demand' for iPhone Air

Wednesday October 22, 2025 3:22 am PDT by
Apple is "drastically" cutting production of the iPhone Air and shifting focus toward the iPhone 17 and iPhone 17 Pro models, Nikkei Asia reports. The business publication claims to have learned of a major cut to iPhone Air production motivated by weaker-than-expected consumer interest, nearly to "end of production levels." Despite early reports of the iPhone Air selling out within hours of...
maxresdefault

Apple's iPhone Air Experiment Fails as Supply Chain Cuts Production by 80%

Wednesday October 22, 2025 10:48 am PDT by
iPhone Air demand failed to meet Apple's expectations and the company's supply chain is scaling back shipments and production, reports Apple analyst Ming-Chi Kuo. Subscribe to the MacRumors YouTube channel for more videos. Suppliers are expected to reduce capacity by more than 80 percent between now and the first quarter of 2026, and some components with longer lead times will be discontinued ...
iOS 26 Feature

iOS 26 Leaker Being Sued by Apple is Actually a 'Lifelong Apple Fanboy'

Friday October 24, 2025 9:20 am PDT by
In July, Apple sued well-known YouTuber Jon Prosser and his acquaintance Michael Ramacciotti over alleged theft of the company's trade secrets, after Prosser leaked some iOS 26 details in videos uploaded to his YouTube channel Front Page Tech. If you are not caught up on the lawsuit, read our initial coverage to learn more. Earlier this week, Prosser told The Verge he has "been in active...