Everyday Calculators
The small calculations that come up constantly, done properly. Percentages that state the answer as a sentence so you can check it means what you intended. Ages that count months correctly instead of assuming every month is thirty days. Time zones that apply the real daylight saving rules for the date you pick rather than a fixed offset.
These are the tools most likely to be opened one-handed on a phone at a restaurant table or in a meeting, so every one of them loads instantly, works without an account, and puts the answer above the fold.
Everyday tools
- Percentage CalculatorSolve every common percentage question - what is X% of Y, X is what percent of Y, and the percentage change between two numbers.
- Age CalculatorWork out an exact age in years, months, and days from any date of birth - plus total days lived and the countdown to the next birthday.
- Tip CalculatorCalculate the tip and split the check between any number of people, with a rounding option and a US tipping reference.
- Time Zone ConverterConvert a time across cities and plan meetings that land in working hours everywhere - with daylight saving handled automatically.