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Calciyums

Daily Life

Practical tools for splitting bills, tipping and everyday sharing.

Bill SplitterSplit a dinner, trip or shared shopping bill evenly between people.
Tip CalculatorWork out the tip as a percentage of the bill, the total, and each person's share.
BMI CalculatorWork out your body mass index from your weight and height, see which range it falls in and your healthy weight range.
Water Intake CalculatorWork out how much water to drink a day, in litres and glasses, from your weight, exercise and the climate.
Calorie CalculatorWork out your basal metabolic rate (BMR) and your total daily calorie need (TDEE) from your activity level.
Grade Average CalculatorEnter each course's grade and credit to work out your credit-weighted average (GPA) instantly.
Dog and Cat Age CalculatorWork out what your dog's or cat's age comes to in human years.
Work Hours CalculatorEnter each day's clock-in and clock-out times to work out your total hours worked.
Sleep Cycle CalculatorFrom a wake-up time or a bedtime, work out the times that let you wake up between 90-minute sleep cycles, not mid-cycle.
Pace CalculatorFrom a distance and a time, work out your running or walking pace (minutes per km/mile) and speed.