📚 Study Time Calculator Plan your exam prep, daily study hours, timetable, priorities, and revision schedule — all in one place. 🎯 Exam Countdown & Daily Study Hours Needed Exam Date Total Topics/Chapters to Cover Average Hours per Topic Days Available for Study per Week Calculate Study Plan 🍅 Pomodoro Study Session Planner Total Study Time Available (minutes) Focus Session Length (minutes) 25 min (Classic Pomodoro) 50 min (Deep Work) 90 min (Ultradian Rhythm) Plan My Sessions 📖 Reading Time Estimator Number of Pages Reading Speed Slow / Technical (200 wpm) Average (250 wpm) Fast Reader (350 wpm) Words per Page (approx.) Calculate Reading Time 🎓 Grade Needed on Final Exam Current Grade (%) Final Exam Weight (% of total grade) Target Overall Grade (%) Calculate Required Score ☕ Break Time Calculator Study Session Length (minutes) Calculate Optimal Breaks 🔁 Spaced Repetition R...

  🌙 Sleep Cycle Calculator Find the best time to sleep, wake up. Wake up at... Sleep now What time do you need to wake up? Calculate Best Bedtimes What time are you going to bed? Calculate Best Wake-Up Times ⏱️ This calculator assumes it takes the average person about 15 minutes to fall asleep. Each full sleep cycle lasts approximately 90 minutes. 😴 Nap Calculator What time are you starting your nap? Calculate Nap Wake-Up Times ☕ Caffeine Cutoff Calculator What time do you plan to go to bed? Find My Caffeine Cutoff 📉 Sleep Debt Calculator Average hours you slept per night this past week Your ideal sleep hours per night Calculate My Sleep Debt 🎂 Recommended Sleep by Age Enter your age Show Recommended Sleep Hours ✅ Sleep Quality Quick Check How many times did you wake up last night? Not at all 1-2 times 3+ times Screen time in the hour before bed? None A little A lot Did you feel rested this morning? Yes, fu...

  R Random Number Generator Integers, decimals, dice, lists, teams & more — all in your browser 🌙 Dark mode Generate truly useful random results, not just one plain number Pick a mode below — a simple integer, a precise decimal, dice rolls, a shuffled list, or randomly split teams — and get an instant, fair result. Nothing is uploaded anywhere; every number is generated locally on your device. 🔢 Basic Random Integer Whole numbers only, between two limits. Lower limit Upper limit No repeats across multiple generates (this session) Generate Number 🎯 Comprehensive Generator Multiple numbers, integers or decimals, with custom precision. Lower limit Upper limit How many numbers Type Integer Decimal Decimal precision Allow duplicates? Yes No (unique only) Generate Numbers ...