Notepad Calculator

Keep notes, calculations, and results on the same page.

Notepad Calculator turns each page into a live calculation sheet. Write plain text, enter an expression, define a variable, or continue from the previous result. Answers appear inline so the reasoning stays visible beside the numbers.

Use it for:

• Personal budgets and expense breakdowns
• Shopping totals, discounts, and tax estimates
• Trip costs and bill splitting
• Study notes and formula checks
• Lists, averages, statistics, and unit conversions

Features:

• Multiple named pages for separate calculations
• Instant results next to each expression
• Variables such as price, tax, total, or any name you choose
• Chained calculations using the previous result
• More than 50 built-in math and statistics functions
• Lists and the special above variable for nearby values
• Searchable function reference with examples
• Configurable decimal precision
• Light and dark themes
• JSON backup export and import
• Local app storage with no account required
• Calculation timeout and recovery tools for problematic expressions

Notepad Calculator keeps the work readable: the notes explain the calculation, the expressions show the method, and the inline answers show the result.

Your pages are stored in app storage on your device. Export a backup whenever you want a portable copy.