Everyday Calculators
Password generator, random number, dice roller, coin flip, date calculator, date diff, and number to words.
Explore our collection of free everyday calculators and tools. Each calculator runs instantly in your browser, works offline, and includes detailed explanations, formulas, and examples. Choose a tool below to get started.
Password Generator
Generate secure random passwords with custom length and symbols.
Random Number Generator
Generate random numbers within a range with duplicates or unique values.
Dice Roller
Roll virtual dice with any number of sides and dice count.
Coin Flip
Flip a virtual coin with Heads or Tails result.
Date Difference Calculator
Calculate days, weeks, months, and years between two dates.
Number to Words Converter
Convert any number into English words instantly.
Date Calculator
Add or subtract days, weeks, months, or years from any date. Find future and past dates instantly.
Grade Calculator
Calculate weighted grades, final exam scores needed, and overall course averages.
GPA Calculator
Calculate your GPA on a 4.0 scale, 5.0 scale, or custom scale. Supports weighted and unweighted.
Hours Calculator
Calculate hours and minutes between two times. Perfect for work shifts, timesheets, and time tracking.
Square Footage Calculator
Calculate square footage for rooms, houses, flooring, and land. Supports rectangle, circle, triangle, and trapezoid shapes with unit conversion.
Date Add Calculator
Add any number of days to a date and see the result instantly. Perfect for deadlines, contracts, and planning.
Business Days Calculator
Add business days to any date, automatically skipping weekends. Essential for HR, payroll, and project deadlines.
How Long Until
Count down the exact time until any future date or event. Live updating countdown with years, months, days, hours, minutes, and seconds.
How Long Ago
See exactly how much time has passed since any past date or event. Live updating with years, months, days, hours, minutes, and seconds.