CalcNote - Notepad Calculator

Type a calculation like a note and the answer appears instantly. No equals button.
Write many calculations on one screen, mix text with math, and edit any line at any time.
CalcNote is a notepad calculator that combines the ease of a calculator with the power of a spreadsheet.

Example: comparing prices while shopping

Shop A
USD 18 * 2 items + USD 4 (shipping)

Shop B
USD 19 * 2 items (free shipping) + 8% (sales tax)

Shop C
USD 18.30 * 2 items + USD 5 (shipping) - USD 2 (points)

Because notes and math live together, every calculation still makes sense when you read it later. Save your work as files, print it, or share it by email.

[What you can do with CalcNote]
- Compare prices and find the best deal while shopping
- Track household expenses and plan a budget
- Calculate sales tax, discounts, and percentages
- Estimate travel costs within a limited budget
- Use variables and line references like a spreadsheet (hourly wage = 15, daily wage = hourly wage * 8 ...)
- Break a complex problem into simple steps and reuse previous results

[A full calculator under the hood]
From everyday math to business and engineering, CalcNote supports:

- Percentage and tax (inclusive/exclusive) calculations
- Unit converter (length, area, volume, mass, temperature, time, speed, fuel consumption, pressure, work)
- Currency converter (156 currencies and 5 cryptocurrencies)
- Scientific calculator functions
- Trigonometry (degrees, radians, gradians)
- Financial functions (compound interest, loans)
- Aggregates (sum, average, variance, standard deviation)
- User-defined functions in JavaScript
- Logarithms (log10, log2) and natural logarithm
- Permutations, combinations, factorial
- Squares, powers, exponential functions, square and cube roots
- Maximum, minimum, median
- Rounding: round, floor, ceiling, bankers' rounding
- Quotient and remainder of division
- Hexadecimal, octal, binary, complements, and bitwise operations
- Variables and reuse of previous results

[Make it your own]
- Change fonts and text size
- Customize almost every color, or restyle the built-in themes
- Arrange the keypad layout freely
- Toggle key sounds and vibration
- Set rounding methods, tax rate, precision, and decimal places
- Define your own constants and functions
- Reorder or hide menus
- Adjust grammar such as decimal comma and comment symbols

Disclaimer
burton999 is committed to providing a high-quality, reliable, and accurate calculation tool through CalcNote. While we strive to ensure the integrity and accuracy of calculations, results may vary depending on inputs and context. Please verify critical calculations independently. burton999 assumes no liability for any direct or indirect damages arising from the use of CalcNote.

CalcNote aims to offer Soulver on Android.
Special thanks go to Zac Cohan, the creator of Soulver.

More than a decade after its first release, CalcNote is still actively developed and improved. It is free to download, so give it a try — once you get used to CalcNote, you may never go back to a traditional calculator.