MyFitCalcs
Structured Programs

Fitness Challenges

Join our structured fitness challenges with calculator-based tracking. Choose your goal and start transforming today!

How Challenges Work

Simple, calculator-based tracking system

1

Choose Challenge

Pick a challenge that matches your goals

2

Use Calculators

Track progress with recommended calculators

3

Track Weekly

Log measurements and recalculate as needed

4

See Results

Transform your body with data-driven progress

Intermediate
30 days

30-Day Body Transformation

Transform your body in 30 days with daily tracking and calculator check-ins.

Challenge Goals

  • Track body fat % weekly
  • Monitor weight and measurements
  • Hit daily calorie targets
  • Progress photos every 7 days

Required Calculators

Body Fat Calculator
TDEE Calculator
Macro Calculator
Expected Results

5-10 lbs change, 1-3% body fat reduction, visible physical changes

Best For

People ready for a complete lifestyle change

Start Challenge
Advanced
8 weeks

8-Week Weight Loss Sprint

Aggressive but sustainable fat loss with precise calorie tracking and weekly check-ins.

Challenge Goals

  • 20% calorie deficit from TDEE
  • Track weight 3x per week
  • Recalculate TDEE every 2 weeks
  • Hit protein targets daily (1g/lb)

Required Calculators

TDEE Calculator
Calorie Calculator
Macro Calculator
Expected Results

8-16 lbs fat loss, improved body composition, increased energy

Best For

Experienced dieters who can handle a deficit

Start Challenge
Intermediate
12 weeks

12-Week Lean Bulk

Build muscle with minimal fat gain through calculated surplus and macro tracking.

Challenge Goals

  • 5-10% calorie surplus
  • Track strength progression weekly
  • Monitor body fat monthly
  • High protein intake (0.8-1g/lb)

Required Calculators

TDEE Calculator
Macro Calculator
Body Fat Calculator
Expected Results

5-10 lbs muscle gain, strength increases, minimal fat gain (2-4 lbs)

Best For

Lifters wanting to bulk without getting fat

Start Challenge
Beginner
6 weeks

6-Week Maintenance Mastery

Learn to maintain your ideal weight effortlessly with intuitive tracking.

Challenge Goals

  • Maintain weight within 2 lbs
  • Find true TDEE through experimentation
  • Build sustainable eating habits
  • Transition from strict tracking to intuitive

Required Calculators

TDEE Calculator
BMI Calculator
Calorie Calculator
Expected Results

Stable weight, understanding of maintenance calories, sustainable habits

Best For

People who've reached their goal weight

Start Challenge
Advanced
16 weeks

16-Week Body Recomposition

Build muscle while losing fat simultaneously - the holy grail for intermediates.

Challenge Goals

  • Eat at maintenance or slight deficit
  • Progressive strength training
  • Track body fat bi-weekly
  • High protein (1g+/lb)

Required Calculators

Body Fat Calculator
TDEE Calculator
Macro Calculator
Expected Results

Visible muscle gain, fat loss, same or lower weight, improved strength

Best For

Intermediate lifters with training experience

Start Challenge
Intermediate
4 weeks

4-Week Metabolic Reset

Reverse diet to boost metabolism after extended dieting or low-calorie periods.

Challenge Goals

  • Increase calories by 100-150 weekly
  • Minimize fat gain during increase
  • Restore metabolic rate
  • Track weight and energy levels

Required Calculators

TDEE Calculator
Macro Calculator
BMI Calculator
Expected Results

Higher TDEE, improved energy, minimal weight gain, metabolic recovery

Best For

People who've been dieting for 12+ weeks

Start Challenge

Challenge Success Tips

Do This

  • • Take starting photos and measurements
  • • Use the same scale at the same time daily
  • • Recalculate TDEE every 10-15 lbs change
  • • Track consistently, even on bad days
  • • Focus on the process, not just the outcome

Avoid This

  • • Changing too many variables at once
  • • Comparing daily weight (use weekly averages)
  • • Giving up after one bad day
  • • Extreme deficits or surpluses
  • • Ignoring body signals (fatigue, hunger)