all tools / calculators
28 free calculators tools
Fast, free calculators for money, health, dates, math and school.
- percentage calculator three calculators in one: what is x% of y, x is what percent of y, and percentage change between two numbers
- loan calculator enter the amount, rate and term to see your monthly payment, total interest and a month-by-month amortization table
- mortgage calculator estimate your total monthly mortgage payment, including property tax, insurance, hoa fees and pmi, plus a full amortization table
- compound interest calculator see how savings could grow with compound interest, regular deposits and a chart of the balance over time
- simple interest calculator calculate simple interest on a deposit or loan from the principal, annual rate and time in years, months or days
- tip calculator enter the bill, choose a tip and split it between friends
- discount calculator find the final price after a percentage discount and see how much you save, with an optional extra discount on top
- sales tax calculator add sales tax to a price, or remove it from a total
- bmi calculator enter your weight and height in metric or imperial units to get your body mass index and category
- bmr and calorie calculator estimate your basal metabolic rate and daily maintenance calories from age, sex, height, weight and activity level
- body fat calculator estimate body fat percentage with the US navy method using a tape measure for neck, waist and, for women, hips
- age calculator find your exact age from your date of birth, plus total months, weeks, days and the countdown to your next birthday
- date difference calculator pick two dates to see the exact difference in days, weeks, months, years and working days
- add days to date calculator add or subtract days, weeks, months or years to find a future or past date
- gpa calculator enter your courses, letter grades and credit hours to calculate your gpa on the 4.0 scale
- final grade calculator find the score you need on your final exam to reach the course grade you want
- scientific calculator a full scientific calculator you can use with the keyboard or on-screen buttons, with degrees and radians
- fraction calculator calculate with fractions and mixed numbers
- average calculator paste a list of numbers to get the mean, median, mode, range and standard deviation
- aspect ratio calculator find the aspect ratio of a width and height, and calculate new dimensions that keep the same ratio
- salary to hourly calculator convert an annual salary to an hourly rate, or an hourly wage to yearly pay, based on your hours and weeks
- retirement calculator estimate how much you could have at retirement based on your savings, monthly contributions and an assumed return
- savings goal calculator work out how much to save each month to reach a goal, or how long a given deposit will take
- fuel cost calculator estimate the fuel needed and the cost of a trip in miles/mpg or kilometres/L per 100 km, with an option to split the cost
- pregnancy due date calculator estimate your due date and key milestones from the first day of your last menstrual period
- ovulation calculator estimate when you are likely to ovulate and your fertile window, based on your cycle length
- roi calculator calculate return on investment as a percentage, plus the annualized return if you enter how long you held it
- profit margin calculator calculate profit margin and markup from cost and revenue, or work out the price needed for a target margin