All Tools & Calculators
Track time. Measure life. Make progress.
⚡ Most Popular
Countdown Timer
Count down to Christmas, New Year, or set a 10-minute timer. Free online countdown.
Open →Time Calculator
Calculate time between dates
Open →Hours Calculator
Calculate hours between times
Open →Time Card Calculator
Calculate work hours
Open →Age Calculator
Calculate your exact age
Open →Date Calculator
Add or subtract dates
Open →Sleep Calculator
Optimize sleep cycles
Open →Nap Calculator
Find your perfect nap length and exact alarm time based on sleep stages.
Open →Sleep Debt Calculator
Calculate your weekly sleep deficit, see your mortality risk estimate, and get a personalized recovery plan.
Open →Pomodoro Timer
Focus timer with breaks & task list
Open →Interval Timer
Free interval timer for HIIT, Tabata, EMOM, boxing and WOD. Set work and rest intervals with sound alerts and fullscreen mode.
Open →Boxing Timer
Free online boxing round timer and MMA sparring clock. Set custom round lengths, rest periods, and rounds with audio alerts.
Open →Tabata Timer
Free online Tabata timer for HIIT workouts, interval training, and fitness. Quick 20 seconds work and 10 seconds rest presets with audio alerts.
Open →EMOM Timer
Free online EMOM timer for CrossFit, strength training, and conditioning. Track work intervals and rest every minute with clear audio alerts.
Open →Time Perception Test
Free time perception test. Stop a hidden timer at exactly 10 seconds. Measures your internal clock accuracy, tendency (early or late), consistency score, and includes an ADHD time blindness indicator.
Open →Time Blindness Test
Free time blindness self-assessment quiz. Answer 12 research-based questions about time estimation, management, and awareness to get your score and personalized strategies.
Open →Chess Clock
Free online chess clock with Bullet, Blitz, Rapid, and Classical presets. Supports Fischer increment, Bronstein delay, and Simple delay. Move counter, fullscreen, and spacebar support.
Open →Reaction Time Test
Free online reaction time test to measure your reflexes in milliseconds. Test visual, audio, and choice reactions with a detailed breakdown.
Open →Click Speed Test
Free online click speed test (CPS test). Measure your clicks per second in 1, 5, 10, or 60 second challenges.
Open →Spacebar Speed Test
Free spacebar speed test (HPS test). Measure your hits per second in 1, 5, 10, or 60 second challenges. Includes counter mode.
Open →Spacebar Counter
Count unlimited spacebar presses, test your SPS speed, and complete challenges. Free online spacebar counter.
Open →Keyboard CPS Test
Test any key's CPS, view live graphs, check consistency, and race two keys against each other.
Open →Kohi Click Test
The original Minecraft PvP click test. Kohi, Jitter, and Butterfly modes with Minecraft rank system from Wood to Netherite.
Open →Typing Speed Test
Free online typing speed test. Measure your WPM and accuracy in 15, 30, 60, or 120 seconds. Check CPM, consistency score, and performance graph.
Open →WPM Test
Free Words Per Minute test online. Check your typing speed in 30, 60, or 120 seconds. Includes WPM calculator, job requirements, and milestone challenges.
Open →Reading Speed Test
Free reading speed test. Measure your WPM with comprehension check. Easy, Medium, and Hard passages with eWPM efficiency score and reading history.
Open →Reading Comprehension Test
Free reading comprehension test online. Read a passage and answer 5 questions to test your understanding. Easy, Medium, and Hard difficulty with instant results and answer review.
Open →Meeting Time Zone Planner
Free meeting time zone planner. Add participants, compare working hours across time zones, and find the best meeting time. DST-aware with meeting cost calculator.
Open →World Clock
Current time in cities worldwide
Open →Time Zone Converter
Convert between time zones
Open →Mortality Calendar
Visualize your entire life in weeks with a memento mori calendar. See weeks lived, weeks remaining, and life phases.
Open →Total Hours Lived
How many hours old am I? Live counter showing total hours, days, minutes, and seconds you have been alive with milestones.
Open →Age in Minutes
How many minutes old am I? Real-time age in minutes calculator with live counter, milestones, and fun facts.
Open →Age in Seconds
How many seconds old am I? Watch your seconds lived tick up live with milestones and equivalencies.
Open →Age in Months
How many months old am I? Exact months lived calculator with live counter and age milestones.
Open →Project Progress Tracker
Track project progress with weighted tasks, milestones, and a visual completion percentage bar. Free project status tracker.
Open →Chinese Zodiac Calculator
Find your Chinese zodiac animal sign, element, and compatibility. What is my Chinese zodiac? Free calculator with Lunar New Year precision.
Open →Weekend Countdown
Live countdown to the weekend. How many weekends in a year? Monthly breakdown, Saturdays and Sundays count, multi-year comparison.
Open →Online Timer
Free online countdown timer with alarm. Set a 1 minute timer, 5 minute timer, 10 minute timer, or any custom time. Includes stopwatch with lap tracking.
Open →Days Until Summer
Live countdown to the first day of summer. How many days until summer? Days, hours, minutes and seconds until June 21.
Open →Days Until Spring
Live countdown to the first day of spring. How many days until spring? Days, hours, minutes and seconds until March 20.
Open →Days Until Easter
Live countdown to Easter Sunday. How many days until Easter? When is Easter? Days, hours, minutes and seconds with Good Friday and Lent dates.
Open →Days Until Mother's Day
When is Mother's Day? Live countdown to Mother's Day with US and UK dates. Days, hours, minutes and seconds until Mom's special day.
Open →Days Until Father's Day
When is Father's Day? Live countdown to Father's Day with US, UK and Australia dates. Days, hours, minutes and seconds until Dad's special day.
Open →Days Until Good Friday
When is Good Friday? Live countdown to Good Friday with days, hours, minutes and seconds. See how it relates to Easter Sunday.
Open →Days Until Diwali
When is Diwali? Live countdown to Diwali (Festival of Lights) with days, hours, minutes and seconds.
Open →Days Until Lent
When does Lent start? Live countdown to Ash Wednesday. See Lent dates, Holy Thursday, and Easter connections.
Open →Days Until Halloween
How many days until Halloween? Live countdown to October 31 with days, hours, minutes, seconds, sleeps and weekday breakdown.
Open →Days Until Thanksgiving
How many days until Thanksgiving? Live countdown with US and Canadian Thanksgiving dates, Black Friday, and more.
Open →Days Until Valentines Day
How many days until Valentines Day? Live countdown to February 14 with Valentine Week dates, Galentines Day, and more.
Open →Days Until 4th of July
How many days until the 4th of July? Live Independence Day countdown with observed date, weekday breakdown, and 10-year coverage.
Open →Days Until St Patricks Day
How many days until St Patricks Day? Live countdown to March 17 with sleeps, weekday breakdown, and 10-year coverage.
Open →What Season Is It
What season is it right now? Live season tracker shows the current season, progress, and countdown to the next season change.
Open →Pregnancy Due Date Calculator
Calculate your estimated due date from LMP, conception date, or IVF transfer. Trimester timeline, milestone dates, and week tracker.
Open →Ramadan Progress
Live Ramadan progress bar, fasting guide, suhoor and iftar times, and countdown to the holy month.
Open →Days Until Christmas
Exact live countdown to Christmas Day, December 25. Days, hours, minutes and seconds.
Open →Days Until New Year
Live countdown to New Year's Day, January 1. See exactly how long until the new year.
Open →Days Until Ramadan
Live countdown to the holy month of Ramadan. Fasting rules, suhoor, iftar guide.
Open →Baby Nap Calculator
Free baby nap calculator with wake windows by age. Enter your baby's birthday and morning wake time to generate a complete daily nap schedule. Ages 0 to 36 months.
Open →Jet Lag Calculator
Free jet lag calculator. Get your recovery time, day-by-day timeline, melatonin timing, and light exposure plan based on your flight route. Based on circadian science.
Open →Browse by Category
Time Calculators (15)
Master every moment of your time
- • Countdown Timer
- • Time Calculator
- • Hours Calculator
- • Date Calculator
- • Day Counter
Life & Mortality (15)
Memento Mori - Remember you'll die
- • Age Calculator
- • Space Age Calculator
- • Life Progress Bar
- • Birthday Countdown
- • Retirement Countdown
Progress Trackers (10)
Track your goals and milestones
- • Goal Countdown Timer
- • Ramadan Progress
- • Year Progress
- • Week Progress Tracker
- • Month Progress Bar
Productivity & Utilities (10)
Boost your efficiency and focus
- • Time Card Calculator
- • Sleep Calculator
- • Pomodoro Timer
- • Interval Timer
- • Boxing Timer