Everyday & Math Calculators
Quick answers to the math that comes up every day: a percentage, the tip on a bill, your exact age, the days between two dates, hours on a time card or your GPA. Results update as you type and show the steps.
Everyday & Math
Percentages, tips, ages, dates, hours worked, GPA and a scientific calculator.
- Percentage Calculator Percent of a number, percent change, increase/decrease and difference.
- Tip Calculator Tip amount, total and split per person, with rounding.
- Age Calculator Exact age in years, months and days, plus the next birthday.
- Date Calculator Days between two dates, business days, and adding or subtracting time.
- Hours Calculator Hours between times, weekly time card and pay with overtime.
- GPA Calculator Semester and cumulative GPA from letter grades and credits.
- Scientific Calculator Basic and scientific calculator with trig, logs, powers and memory.
Quick answers
Days until Christmas, Thanksgiving and other holidays (live countdowns) and how old you are by birth year, with generation, Social Security and Medicare ages for every year from 1940 to 2010.
Also see: Financial Calculators.