288 calculators for transportation, clothing, home, school, leisure, and more
Calculate percentage score and letter grade from correct and total questions
Calculate fuel needed and total cost for a trip based on distance, fuel efficiency, and fuel price.
Calculate your exact age in years, months, and days from your birth date.
Find your bra size based on band and bust measurements in inches.
Estimate how much car you can afford based on monthly payment, interest rate, and loan term.
Calculate the number of days, weeks, and months between two dates.
Convert your dog's age in years to human years based on size and breed category.
Calculate the cost of running an electrical appliance based on power consumption and usage time.
Calculate total fuel cost for a road trip based on distance, fuel efficiency, and gas price.
Calculate your GPA from course grades and credit hours.
Calculate your gross pay for a given period based on hourly rate and hours worked.
Calculate miles driven, fuel used, and mileage reimbursement at the standard IRS rate.
Convert minutes to hours and minutes format (e.g., 150 min = 2h 30m).
Calculate overtime pay with 1.5x or 2x rates based on hours worked beyond standard 40-hour week.
Calculate running pace (min/km or min/mi), speed, or finish time for any distance.
Track your menstrual cycle and estimate next period, ovulation, and fertile window dates.
Convert shoe sizes between US, EU, UK, and CM sizing systems for men and women.
Calculate the duration between a start and end time in hours, minutes, and seconds.
Calculate tip amount, total bill, and per-person share.
Find the optimal TV screen size and viewing distance for your room.
Find the week number of the year for any date, plus days remaining in the year.
Calculate how much time you save by listening to audiobooks at different playback speeds.
Find mattress dimensions in inches and centimeters for all standard bed sizes
Find your belt size based on your waist measurement. Get the perfect fit for any occasion.
Calculate boat speed in knots and miles per hour based on distance traveled and time.
Calculate how much you can save by carpooling with others on your daily commute.
Calculate your semester GPA and cumulative GPA with up to 5 courses
Calculate monthly commuting costs including gas and parking expenses.
Calculate curtain panel dimensions based on window size and desired fullness.
Find your US dress size based on bust, waist, and hip measurements.
Calculate how long a road trip will take based on distance and average speed.
Calculate the cost of running a single appliance for one session
Calculate how much fabric you need for your sewing project based on project type and measurements.
Calculate what score you need on your final exam to reach your desired grade
Calculate the total fuel cost for a trip based on distance, fuel efficiency, and gas price.
Determine the generator size you need based on essential household appliances
Split a grocery bill evenly among friends including tax and optional tip
Find your hat size based on head circumference. Convert cm to US hat sizes easily.
Calculate how much you save by switching from incandescent to LED bulbs
Calculate your vehicle's fuel efficiency in miles per gallon and see how it compares to fuel economy standards.
Convert knitting needle sizes between mm, US, and UK sizing systems.
Calculate your quiz percentage score and letter grade with detailed grading scale
Calculate your reading speed in words per minute and see how you compare to average reading rates.
Estimate how long it will take to read a book or article based on word count and your reading speed.
Find your US ring size based on finger circumference in millimeters.
Find the ideal rug size for any room in your home
Convert foot length to US, EU, and UK shoe sizes for men and women.
Find the perfect tablecloth size for your rectangular table based on table dimensions and desired drop length.
Calculate tire diameter and circumference from P-metric size.
Find the best value by calculating the price per unit of any product
Convert text between uppercase, lowercase, title case, and sentence case — useful for writing, editing, and formatting.
Convert between typography units — points (pt), pixels (px at 96 DPI), em, rem, millimeters (mm), and inches (in).