Time & everyday conversions

See this section on the full toolbox page alongside every other category.

See the current time in multiple cities at once.

Convert a time between any two timezones.

Calculate days, weeks or months between two dates.

Convert between numbers and Roman numerals.

Convert text to binary/octal/hex and back.

Look up Unicode code points for characters, and back.

Spell out text using the NATO phonetic alphabet.

Evaluate a math expression, with common functions.

Percentage of a number, percent change, and more.

Convert between Celsius, Fahrenheit and Kelvin.

Resize an image and adjust its compression quality.