Fitness & Health Tools
Browse our comprehensive collection of free fitness & health tools. Professional-grade utilities for developers, designers, students, and professionals. All tools work directly in your browser with no sign-up required.
Pomodoro Timer
Boost productivity with the Pomodoro Technique. Set 25-minute work sessions, take breaks, and track your focus time. Perfect for studying, working, and maintaining focus.
52/17 Rule Timer
Boost productivity with the 52/17 rule. Work for 52 minutes, then take a 17-minute break. Perfect for maintaining focus and preventing burnout.
Deep Work Timer
Master deep work with Cal Newport's methodology. Schedule focused, distraction-free work sessions to achieve peak productivity and produce your best work.
Countdown Timer
Set a custom countdown timer for any duration. Perfect for cooking, workouts, presentations, or any time-sensitive task. Simple, accurate, and easy to use.
Stopwatch Timer
Track elapsed time with millisecond precision (00:00:00.000 format). Perfect for workouts, races, cooking, presentations, or any activity where you need to measure how long something takes with accuracy down to 0.001 seconds.
Tabata Timer
High-intensity Tabata workout timer with 20 seconds work and 10 seconds rest intervals. Perfect for HIIT training, cardio, and quick effective workouts.
HIIT Interval Timer
Customizable HIIT interval timer for high-intensity interval training workouts. Set custom work and rest periods, track rounds, and maximize your fitness gains.
One Rep Max Calculator
Calculate your one-rep max (1RM) based on submaximal lifts. Use multiple formulas (Brzycki, Epley, Lombardi) to estimate your maximum strength safely without testing your true 1RM.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly. Supports both metric and imperial units. Get your BMI category and health recommendations.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE). Determine how many calories your body burns at rest and with activity. Perfect for weight management and nutrition planning.
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) to determine how many calories you burn each day. Perfect for weight management, nutrition planning, and achieving your fitness goals.