Free tools
Calculators, checklists and timers for every phase of your body. Everything runs in your browser, so nothing you enter ever leaves your device.
Runs entirely in your browser. Nothing you enter is sent anywhere.
For every phase
Menstrual cycle
Pregnancy
Pregnancy week calculator
Your week and trimester today, with the movement guidance for that stage.
Due date calculator
Estimate your due date from your last period and your usual cycle length.
Pregnancy exercise intensity guide
Check how hard is right with the talk test and the perceived exertion scale.
Postpartum
Postpartum exercise readiness
Which stage of returning to exercise fits you now, based on time since birth and how you feel.
Return-to-running checklist
The load and impact tests to pass before running again after giving birth.
Diastasis recti self-check
A step-by-step guide to checking your abdominal separation and what the result usually means.
Pelvic floor exercise timer
A guided squeeze-and-release timer with slow and quick sets.