Calculators.

Built for use inside the practice, and published here for anyone who wants them.

Free to use. Runs locally with no account needed. Nothing is ever sent off your device.

• Body fat calculator

  Six methods · Male or Female

  Jackson/Pollock 7, 3 and 4 site, Parrillo, Durnin/Womersley and the US Navy tape method, each implemented from its published source.

• Peptide calculator

  Reconstitution · Vial life · Dose equation

  Calculate how much water should be added and how much to draw up based on the dose you wanted. Bonus result for how long the vial will last before it's empty.

• Plate calculator

  Calculate barbell load · Colours or Kilos

  Easily calculate what's on the bar using the plates you see in front of you. Bonus, it will show you the same weight in the fewest plates possible to save your lower back.

• One rep max calculator

  Five models · Based on where you are today

  Calculate your 1RM based on prior weight lifted and the reps you achieved with it. Uses the average of five well-known published models.