Everyday Math Calculators
Fast everyday calculators that answer the question you actually have — what percent, how many days, how many hours, what grade you need — and show the working so you can check it.
- Percentage CalculatorPick the question you have — the calculator solves it and shows the working.
- Percent Change CalculatorFind how much something went up or down in percent — prices, pay, traffic, weight or anything else.
- Tip CalculatorWork out the tip, the total and each person’s share in seconds.
- Age CalculatorExact age from a date of birth — today or on any date you choose.
- Days Between Dates CalculatorCount calendar days and working days between any two dates — deadlines, trips, notice periods and countdowns.
- Hours Worked CalculatorType each shift as start–end and break minutes. Get total hours, overtime and pay.
- Grade CalculatorEnter each category’s score and weight to get your current grade — and what you need on the final.
- GPA CalculatorList each class with its letter grade and credits — get semester and cumulative GPA.