Everyday Calculators

Grades, tips, fuel economy and other handy everyday tools.

These are small tools for everyday decisions. The tip calculator works out the tip and splits the bill between people, and the MPG calculator turns miles and fuel into fuel economy so two cars or two trips can be compared fairly.

For school, the grade calculator finds a weighted course grade, the final grade calculator shows the score needed on an exam to reach a target, and the GPA calculator averages grade points across courses. Schools weight and round differently, so treat the result as an estimate and confirm it against your school's own rules. The random password generator builds a password in your browser without sending it anywhere. All of them are quick estimates meant to save arithmetic, not to replace a receipt, a transcript or an official figure.

Popular everyday calculators

• Tip CalculatorTip and total per person for any bill and tip rate.
• GPA CalculatorGrade point average from course grades and credit hours.
• Final Grade CalculatorThe exam score needed to reach a target course grade.
• Gas Mileage (MPG) CalculatorFuel economy from distance driven and fuel used.

All everyday calculators

• Grade CalculatorThree tools in one: convert marks to a percentage and letter, combine graded work into a weighted course grade (with the score you need on the final), or see how a new grade would change your current average.
• Tip CalculatorEnter the bill, choose a tip percentage and, if you are sharing, the number of people. You get the total, the tip, and each person's share, with optional rounding up.
• Random Password GeneratorSet the length and the kinds of characters you want, then press the button for a fresh random password. Copy it into your password manager and use it for one account only.
• Final Grade CalculatorEnter your current grade, the grade you are aiming for and how much the final counts toward the course. The calculator tells you the minimum exam score that gets you there, or says so if it cannot be done.
• Gas Mileage (MPG) CalculatorEnter your odometer readings and the fuel you added at the pump to see your fuel economy in miles per gallon or liters per 100 km. Add a fuel price and the calculator also shows what each mile costs.
• GPA CalculatorEnter how many courses you want to include, then a grade and a number of credits for each. You get the credit-weighted GPA, the matching letter grade and the total credits.