Sleep Calculator
Find the best time to go to bed or wake up, based on 90-minute sleep cycles.
Use the tool »Free Wellness Tools
Simple, free tools for everyday wellbeing. Work out when to go to bed, check your BMI, estimate how much protein you need, find your heart rate zones, follow a calm breathing timer, plan a reset day or time a Japanese walking session.
Every tool runs in your browser, so nothing you type is sent to us or stored. They give general information to help you understand your habits, and where a result is only an estimate we say so plainly. Each page also explains how the answer is worked out and links to articles with more detail.
If a result worries you, or something does not feel right, please talk to a doctor or qualified professional about your personal needs. These tools are not medical advice.
BMI Calculator
Check your body mass index and the healthy weight range for your height.
Use the tool »Daily Protein Calculator
See roughly how much protein you need each day and how to spread it across meals.
Use the tool »Heart Rate Zone Calculator
Work out your five training zones, including the easy, conversational Zone 2.
Use the tool »Breathing Timer
Follow a calm animated circle through box breathing, 4-7-8 or your own pattern.
Use the tool »Weekly Reset Day Planner
Pick your focus, time and energy, and get a simple timed checklist for your reset day.
Use the tool »Japanese Walking Timer
Alternate 3 minutes of brisk walking with 3 minutes of easy walking, with beeps and rounds.
Use the tool »