Getting started

“Notes calculator” is a notepad for working through problems that involve calculations. Type a calculation in the input field (left side), and the result will be displayed on the right side.

The currency conversion below uses an illustrative rate of USD 1 = EUR 0.8. Live currency results vary with the app’s current rate.

Notes CalculatorCopy

Calculation example

Calculation	Result
1(75 + 25) x 3	300
2100 + 50%	150
320% of 40	8
4
5100 dollars in euro	€80
660 degree in radians	1,05 rad
71 kg in g	1.000 g
81 day in seconds	86.400 seconds
9
10// You can also use variables: <-- this is a comment, which is ignored
11discount = 10%	10%
12cost = 550€	€550
13cost - discount	€495

Calculations are performed automatically as you type, and the result is updated in real-time.

What’s new

• Decimal Point & Thousands Separators — type grouped numbers like 1.234.567 (matching your “Use dot as decimal point” setting) or 1_000_000 with underscores.
• Line References — refer to an earlier line by its number, e.g. line1.
• User-Defined Functions — define your own functions like f(x) = 2*x + 1.
• Number Bases & Scientific Notation — hex, binary, octal, and scientific literals plus in hex / as scientific postfixes.

Autocomplete

As you type, Notes Calculator suggests units, currencies, constants, functions, line references, and timezones. Press Tab to accept, ↑/↓ to navigate, and Esc to dismiss. Toggle in Settings → Completion hints.

Syntax highlighting

Numbers, units, variables, operators, line references, and comments are colour-coded, with a palette that adapts to light and dark mode. Toggle in Settings → Syntax highlighting.