Everyday life

Tips, fuel, cooking, time, age

Tip Calculator

Calculate the tip and total for any bill, and split it evenly between people.

Work out how much fuel a trip needs and what it will cost.

Calculate the sale price after a discount and how much you save.

Find your exact age in years, months and days — plus totals and your next birthday.

Calculate average speed from distance and time, in km/h, mph and m/s.

Count the exact time between two dates — in years, months, days, weeks.

Estimate how much an appliance costs to run, based on its power and your tariff.

Calculate your grade point average from your grades and credits — works with any grading scale.

Find out what grade you need on your final exam to reach your target average.

Convert a grade between scales: /20, %, /10, /6, GPA — instantly, in both directions.

Find the honours (mention) for an average out of 20: Pass, Fairly good, Good, Very good (French system).

Convert cups, tablespoons and millilitres to grams for flour, sugar, butter and more — by ingredient.

X is P% of what number? Find the whole from a part and its percentage.

Calculate density from mass and volume (g/cm³ = g/mL).

How long to download a file at a given connection speed.

Price per unit — to compare which pack or size is the better deal.

How long a text takes to read at a chosen reading speed.

Convert a dog’s age into human years (AKC method).

The real cost of an item per time you use it: price ÷ uses.

Split a bill among people, including the tip.

Work out how long a trip takes from distance and average speed.

Calculate hours worked between two times, minus breaks — and optional pay.