Write `°` directly (e.g., `25°`)
Use HTML: `°` (e.g., `25°C`)
Use Unicode (UTF-8): `u00B0` (e.g., `25u00B0`)
In LaTeX: `^{circ}` (e.g., `25^{circ}text{C}`)
In CSS: `content: “ 0B0”;`
In JavaScript: `”u00B0″` (e.g., `25 + “u00B0″`)
In Python: `”u00B0″` (e.g., `f”{25}u00B0″`)
In C#: `”u00B0″` (e.g., `”{25}u00B0″`)
On Windows (Alt code): hold `Alt` and type `0176` on the numeric keypad
On macOS: Option (⌥) + `Shift` + `8`
On Linux (common): `Ctrl` + `Shift` + `u` then `00b0` then `Enter`