Fitness Calculators
Training pace, strength, and performance.
12 free tools available
- Fitness
Flexibility & Mobility Score
Test your flexibility and mobility at home with four simple tests. Get an overall score, per-area breakdown, and targeted stretch suggestions. Free, no Open - Fitness
Push-Up Test Calculator
Score your push-up test against ACSM age and sex normative tables. See your percentile band, how to improve, and when to retest. Free fitness Open - Fitness
Recovery Time Calculator
Estimate how long to rest before training the same muscle group again. A transparent heuristic from sports-science recovery principles. Free, no signup. Open - Fitness
FFMI Calculator
Calculate your Fat-Free Mass Index (FFMI) and height-normalized FFMI. A useful fitness metric for lifters and athletes — not a medical diagnosis. Open - Fitness
One-Rep Max Calculator
Estimate your 1RM with Epley and Brzycki, plus a full % training table. Open - Fitness
Steps to Calories Calculator
Turn your step count into distance walked and calories burned. Open - Fitness
VO₂ Max Calculator
Estimate your cardio fitness from your resting and max heart rate. Open - Fitness
Calories Burned Calculator
Estimate calories burned by activity using MET values and your weight. Open - Fitness
Running Pace Calculator
Solve pace, finish time, or distance — and see your splits. Open - Fitness
Sitting Disease Reversal Calculator
Offset desk time with micro-breaks and extra NEAT steps — get a personalized movement recipe. Open - Fitness
Strength Program Builder
Turn your 1RM into a free 4-week progressive-overload plan with exact working weights. Open - Fitness
Walk It Off Calculator
Enter a food or calories to see the minutes of walking, running, or cycling to burn it. Open
Want your full picture?
Combine your results with the free HealthyLifeStyles Health Score assessment.