Free 75-Day Challenge Tools
Free tools to plan and track your 75-day, 30-day, or custom challenge.
Whether you're doing 75 Soft, a strict 75-day challenge, or something you built yourself — these tools help you calculate your end date, track daily tasks, and see your progress on a day-by-day grid. All free, all in your browser.
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30-Day Kickstart Tracker
Free daily tracker for the 30-Day Kickstart challenge. 5 beginner-friendly tasks over 30 days. Build habits before going all in.
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75 Hotter Tracker
Free daily tracker for the 75 Hotter challenge. 7 beauty and wellness tasks over 75 days. Skincare, self-care, and more.
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75 Soft Tracker
Free daily tracker for the 75 Soft challenge. 5 tasks, 75 days, no restart penalty. The forgiving alternative.
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75 Tough Tracker
Free daily tracker for the 75 Tough challenge. Check off 6 tasks, track your streak, and see your 75-day grid. Strict mode — miss a day, start over.
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75-Day Challenge Calculator
Pick your start date and see your end date, milestones, and a full timeline for your challenge.
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75-Day Challenge Meal Plan Generator
Build a free 7-day meal plan for any 75-day challenge — pick a diet style, set calorie and protein targets, filter allergens, and get meals, macros, a grocery list, and a Sunday prep checklist.
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BMI Calculator
Calculate your body mass index, see your CDC category, and get your healthy weight range with metric or imperial units.
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Body Recomposition Calculator
Estimate maintenance calories, training-day and rest-day macros, and a realistic timeline for losing fat while building muscle.
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Body Weight Progress Tracker
Log weigh-ins and see your weight trend, total change, weekly average, and progress toward a goal weight. Saves locally in your browser.
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Calorie Deficit Calculator
Free calorie deficit calculator that uses Mifflin-St Jeor to find your BMR, TDEE, daily calorie target, macros, and weeks to your goal weight.
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Challenge Cost Calculator
Estimate the total cost of completing a 75-day challenge — gym, food, supplements, books, and gear, with cost per day and budget tips.
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Challenge Countdown Timer
See exactly how many days remain in your 75-day challenge, your current day number, percent complete, and end date. Free, no sign-up.
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Challenge Difficulty Comparison
Compare 75-day wellness challenges side by side. Filter by difficulty, daily time, and focus to find the program that fits your life.
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Challenge Reading List Generator
Get personalized book picks for your 75-day challenge. Filter by genre, length, and topics to build a reading list you will actually finish.
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Challenge Restart Counter
Log every restart of your 75-day challenge. See longest run, total attempts, average days before restart, and a persistence score.
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Challenge Success Rate Calculator
Enter your past 75-day challenge attempts to see your average days, improvement trend, persistence score, and projected attempt to finish.
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Cold Plunge & Ice Bath Timer
Free cold plunge and ice bath timer with a science-backed safe-duration calculator. Log every session and track your weekly cold-exposure minutes.
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Daily Reading Tracker
Free daily reading tracker for a 10-pages-a-day habit over 75 days. Log your reading, keep your streak alive, no account required.
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Daily Water Intake Calculator
Get a personalized hydration target in ounces, cups, and liters based on body weight, activity level, climate, and life stage.
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Gallon Water Intake Tracker
Track every sip against the 1-gallon (128 oz) daily goal with a live progress bar and refill counter.
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Glow Within Tracker
Free daily tracker for the Glow Within challenge. 7 mindfulness tasks over 75 days. Meditation, journaling, digital detox.
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Habit Streak Calculator
Count your current habit streak in days, weeks, and months from any start date. See milestones hit, your next milestone, and completion percentage against goals like 30, 66, 75, or 365 days.
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Heart Rate Zone Calculator
Find your five heart rate training zones from age, resting heart rate, and formula choice for walking, running, cycling, and challenge workouts.
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Macro Calculator
Calculate your daily protein, carbs, and fat targets for fat loss, maintenance, or muscle gain on any 75-day challenge.
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Money Saved Not Drinking Calculator
Free calculator that shows how much money, calories, and time you've reclaimed since your last drink — with 30, 90, and 365-day projections.
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Outdoor Workout Ideas Generator
Generate a randomized 45-minute outdoor workout for your 75-day challenge. Pick fitness level, equipment, focus, and duration to get a structured warm-up, main block, and finisher.
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Printable 75-Day Challenge Tracker Generator
Generate a free printable 75-day challenge tracker with real calendar dates, daily checkboxes, and milestone markers. Pick your challenge type and start date.
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Progress Photo Comparison Tool
Free before-and-after photo maker for any 75-day challenge. Upload two photos, label them Day 1 and Day 75, and download a side-by-side image. Runs entirely in your browser.
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Protein Intake Calculator
Estimate your daily protein target from body weight, activity level, and fitness goal, then break it into realistic per-meal checkpoints.
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Sober Day Counter
Free alcohol-free streak calculator showing days sober, money saved, calories avoided, and milestone badges in real time.
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TDEE / Maintenance Calorie Calculator
Free TDEE / maintenance calorie calculator using Mifflin-St Jeor to estimate daily calories, goal targets, and macros for your wellness challenge.
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Two-a-Day Workout Planner
Plan both daily workouts for a 75-day challenge. Get a matched indoor + outdoor pair, muscle-group balance, and a 7-day rotation.
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Weight Loss Percentage Calculator
Enter your starting and current weight to see the percentage of body weight you've lost, pounds or kilograms dropped, and progress toward the 5% and 10% health milestones.
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Weight Loss Timeline Calculator
Enter your current weight, goal weight, and weekly loss rate to see your projected goal date and milestone dates at 25, 50, 75, and 100 percent.
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Which 75-Day Challenge Is Right for You? Free Quiz
Answer 7 quick questions about your fitness level, goals, and lifestyle to find the best 75-day challenge for you.
Need more than a browser tracker?
The Reset75 app adds progress photos, timelapse videos, streak tracking, and statistics dashboards to your challenge. Free to download, no account required.
Download