Words to Minutes Calculator
How long your speech takes to say, or how many words fit your time limit.
Free tools for better habits, sleep and focus
Calculators, timers and quizzes that answer one question fast and show how they got there. Each one runs in your browser: no account, nothing stored, no ads.
Productivity
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Days Since Calculator
Days since or until any date, in weeks, months and years, with your next milestone.
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Reading Speed Test
Your words per minute, with 5 questions to check you took it in.
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Reading Time Calculator
How long your book takes to read, and the minutes a day to finish it.
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Decision Wheel
Spin a fair wheel with your own options, weights, yes or no and numbers.
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Chore Chart Maker
Split chores fairly for kids, roommates or couples, then print or share the chart.
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Pomodoro Timer
A 25/5 tomato clock that keeps time in a background tab, with a session planner.
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Bucket List Generator
312 bucket list ideas by budget, time and company, and a list maker with a first step.
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Eisenhower Matrix Maker
Sort your to-do list into four boxes with two questions, then print or copy it.
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Habit Tracker
Check off up to 10 habits, see streaks and a year heatmap, and print a monthly sheet.
Sleep
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Sleep Cycle Calculator
Your best bedtime for any wake-up time, or when to wake if you go to bed now.
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Jet Lag Calculator
How many days your jet lag lasts, plus a day-by-day plan for sleep, light and coffee.
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Nap Calculator
When to set your alarm for a power, coffee or 90-minute nap, and how late is too late.
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Chronotype Quiz
Five research-based questions: are you a morning lark, a night owl or in between?
Fitness
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Steps to Miles Converter
How far your steps go, for your height, with walking time and calories.
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VO2 Max Calculator
Estimate your VO2 max from a run, a walk or your resting pulse, and see your age norms.
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Stretching Timer
A guided 8-stretch routine with side-switch cues, voice prompts and presets from 4:50.
Wellness
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Sobriety Calculator
Your days, months and years sober, a live clock and your next milestone, kept private.
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Water Intake Calculator
Your daily water goal in oz, cups and liters, for your weight and your day.
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Intermittent Fasting Timer
Start a 16:8 to OMAD fast, see when you can eat, and plan the same window every day.
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Screen Time Calculator
How many years your phone time adds up to, and what cutting back would give you.
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Burnout Quiz
A private 15-question self-check: your burnout score, four areas and first steps.
Hi, I’m Otto. I’ll help you build habits to transform your life in the next 66 days.
