Try it yourself
Three groups
1One-rep max · freeYour best single lift, from any set.
⌁BOLT score · freeBreath-hold time and CO₂ tolerance.
◍Body metrics · freeBMI, ideal weight, body fat and FFMI.
Free and Pro
3calculators free forever
3free tries of the others
15with Ritual Pro
Try them in your browser
What is in the Lab
Ritual Lab has 15 calculators built on established formulas from exercise science. Each one explains how it works, lists its sources, shows your result on a scale and saves it so you can watch it change.
- Strength and power: one-rep max, strength standards, Wilks and DOTS, functional mobility and a recovery check.
- Cardio and endurance: VO₂ max test, VO₂ max potential, BOLT score, heart-rate zones and heart-rate recovery.
- Body and longevity: body metrics, biological age, sleep balance, hydration and daily movement.
One-rep max, BOLT score and body metrics are always free. Results feed your Health Score, and coaches can keep results on each client's profile.