With the release of iOS 18, Apple heavily upgraded the native Notes app by integrating a feature called Math Notes. This functionality allows the Notes app to instantly recognize mathematical equations, formulas, and arithmetic expressions typed or handwritten within a note, automatically calculating and displaying the result as soon as you type an equals sign (=).
While this seamless calculation tool is fantastic for students or users doing quick budgeting, it can be highly frustrating when you are typing standard text that happens to include an equals sign. If you frequently use mathematical symbols for formatting, coding snippets, or specific document structures, the auto-calculation feature can abruptly alter your text and disrupt your workflow. If you prefer your Notes app to remain a strict text editor, you can completely disable the Math Notes auto-calculation feature.
Why Disable Math Notes Auto-Calculation?
There are several practical reasons why you might want to stop the Notes app from automatically solving equations:
- Formatting Interference: If you use equals signs as dividers or within code blocks, the app may interpret them as equations and insert unwanted calculated results.
- Unintended Results: Typing out a formula for reference (rather than for a solution) will trigger the automatic calculation, which can clutter your carefully formatted note.
- Preserving Simplicity: Many users rely on the Notes app for basic, uninterrupted text entry and prefer to use a dedicated calculator app for mathematics.
How to Turn Off ‘Math Notes’ Auto-Calculation in iOS 18
Apple allows you to disable the automatic calculation behaviour directly from the iOS Settings app, preventing the Notes app from intervening when you type mathematical symbols.
- Open the Settings app on your iPhone.
- Scroll down the list of apps and tap on Notes.
- Scroll down to the Math Notes section.
- Locate the toggle switch labelled Auto-Calculate Results.
- Switch the toggle to the Off position.
Once disabled, you can freely type equals signs, variables, and complex equations within any note. The Notes app will treat them as standard text, and no automatic calculations or highlighted results will appear.