💪 Health & Fitness · 9 Tools · Free · No Signup
Health & Fitness
Health calculators, fitness tools, and wellness utilities to help you track your body, plan workouts, and live healthier.
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9 toolsBody Fat Calculator
Estimate body fat percentage using the US Navy method or BMI method.
BMI Calculator
Calculate Body Mass Index with health category classification.
Sleep Cycle Calculator
Calculate the best times to wake up based on 90-minute sleep cycles.
1 Rep Max Calculator
Estimate your one repetition maximum for any exercise using the Epley or Brzycki formula.
BMR Calculator
Calculate Basal Metabolic Rate for daily calorie needs estimation.
Heart Rate Zone Calculator
Calculate your 5 heart rate training zones based on your maximum heart rate.
Ideal Weight Calculator
Calculate ideal body weight using multiple formulas (Hamwi, Devine, Robinson, Miller).
Running Pace Calculator
Calculate running pace, finish time, or distance for any race.
Drug Combination Chart
Interactive harm-reduction reference chart showing which drug & substance combinations are low risk, dangerous, or potentially deadly.
Security & Encoding
21 tools — Password generators, hash functions, encoding tools, and security util...
Text & Writing Tools
32 tools — Text manipulation, formatting, counting, and conversion tools for writ...
Developer Tools
37 tools — Code formatting, validation, conversion, and developer productivity to...
Math & Calculators
22 tools — Mathematical calculations, unit conversions, financial calculators, an...
Generators & Utilities
20 tools — Random generators, fake data creators, and utility tools for various p...
Design & Visual Tools
28 tools — Color tools, CSS generators, and visual design utilities for web devel...
Productivity & Daily Tools
22 tools — Personal productivity tools, timers, planners, and organizational util...
Network & Web Utilities
15 tools — Browser information, network utilities, and web development testing to...
Fun & Interactive Games
37 tools — Browser-based games, tests, and interactive challenges. All run locall...
Thinking Games
60 tools — Strategy, logic, and puzzle games to challenge your mind. All games ru...
File Conversion
50 tools — Convert images, documents, data and media locally in your browser. No ...
Finance & Budget
8 tools — Financial calculators, budget planners, investment tools, and money ut...
Music & Audio
8 tools — Metronome, instrument tuner, chord generator, and music theory tools. ...
Food & Nutrition
6 tools — Cooking measurements, nutrition calculators, diet planning tools, and ...
Career & Business
5 tools — Salary tools, invoice generators, freelance calculators, and business ...
Travel & Geography
5 tools — Time zones, jet lag calculators, travel budgets, and geography tools f...
Home & Life
4 tools — Home improvement calculators, electricity costs, paint estimators, and...
Mindfulness & Wellness
4 tools — Meditation timers, breathing exercises, mood tracking, and wellness to...
Parenting & Kids
4 tools — Pregnancy calculators, baby sleep schedules, child growth tracking, an...
Israeli Finance
4 tools — Israeli tax calculators, net salary (neto/bruto), Bituach Leumi, and l...
Ecology & Environment
4 tools — Carbon footprint, water usage, energy savings, and sustainability calc...
Creativity & Arts
4 tools — Story generators, color tools, writing aids, and creative prompts for ...
Learning & Academia
5 tools — GPA calculators, grade converters, study schedules, and academic tools...