Fitness Metrica calculator

Simple and easy to use calculator for sports performance.
Includes:
- The calculation of the maximum weight per repetition of a known working weight.
- Calculation of working weight with a certain maximum weight per repetition.
- The calculation of the number of repetitions with a particular weight at a known maximum one repetition.
- Calculator body mass index (BMI).
- Calculator basal metabolic rate (BMR), the calculation of daily calorie intake
and the distribution of proteins, fats and carbohydrates in the diet depending on the purpose (weight grow, weight loss, weight maintenance).