Free, gentle wellness tools from The Self-Care Edit — work out your ideal bedtime, hydration and more. Everything runs right in your browser, nothing is stored, and more tools are added regularly.
Sleep Calculator
Find the best time to fall asleep or wake up, based on 90-minute sleep cycles.
Open tool →
Water Intake Calculator
How much water you should drink a day, by weight and activity.
Open tool →
Caffeine Calculator
See how long caffeine stays in your system — and your caffeine curfew for good sleep.
Open tool →
Breathing Timer
A guided box-breathing timer to calm your mind in minutes.
Open tool →
Body Fat % Calculator
Estimate your body fat from tape measurements (U.S. Navy method) — beyond BMI.
Open tool →
BMI Calculator
Check your Body Mass Index and healthy range, in metric or US units.
Open tool →
Daily Calorie Calculator
Find your maintenance calories and targets to lose or gain (TDEE).
Open tool →
Ideal Weight Calculator
See the healthy weight range for your height, in kg and lb.
Open tool →
Sleep Debt Calculator
Add up the sleep you’ve missed this week and how to catch up.
Open tool →