Date & Time Calculators
Free online date and time tools for calculating ages, date differences, academic grades, and more.
Date & Age
- Age Calculator — Exact age in years, months, days, and hours, plus zodiac sign and next birthday countdown
- Date Calculator — Add or subtract days from a date, or find the number of days between two dates
Academic
- GPA Calculator — Weighted GPA on the 4.0 scale with add/remove course rows
- Grade Calculator — Weighted grade average and what score you need on the final exam
Time Tools
- Time Calculator — Add, subtract, and convert time between hours, minutes, and seconds
- Hours Calculator — Calculate hours and minutes between two timestamps
- Working Days Calculator — Count business days between dates, excluding weekends and holidays
Academic
- GPA Calculator — Weighted GPA on the 4.0 scale with add/remove course rows
- Grade Calculator — Weighted grade average and what score you need on the final exam
- CGPA to Percentage Converter — Convert CGPA to percentage using standard conversion schemes
Tools
- Password Generator — Cryptographically secure random passwords with strength and entropy display
- Word Counter — Count words, characters, sentences, paragraphs, and estimated reading time
- Random Number Generator — Generate random numbers in a range, with or without duplicates
- Fuel Cost Calculator — Gas cost per trip using distance, MPG or L/100km, and fuel price