Tools and calculators
/tools is a directory. Most of what it lists is on
ZTools, a separate site of stateless calculators, and the card takes you there.
That is deliberate. A calculator that already exists somewhere maintained does not get written a second time here.
What runs inside LifeWell
Four calculators stayed, because ZTools does not have them:
| Tool | Address |
|---|---|
| Waist-to-hip ratio | /tools/waist-hip-ratio |
| Child growth | /tools/child-growth |
| Weight gain | /tools/wellness-weight-gain |
| Interval timer | /tools/interval-timer |
Plus /baby-names, which is a browser rather than a calculator.
All five are public. They need no account, and they store nothing about you.
What moved out
BMI, TDEE, BMR, macros, protein, body fat, ideal weight, heart-rate zones, age and the workout timer all redirect to their ZTools equivalents. The old LifeWell addresses still work — they return a permanent redirect rather than a 404, because people linked to them.
A handful of others redirect inwards instead, to the screen that replaced them:
/tools/calorie-counter → /health/calories, /tools/fasting-tracker → /health/fasting,
/tools/sleep-tracker → /health/sleep, /tools/step-counter → /health/steps.
The complete list is Addresses that do not move.
/health-tools
/health-tools is an index of the health-related calculators.
The 2.x version of this page listed a search-volume figure beside each tool — numbers like 3.2M that had no source and were used to order the list. They were invented. They are not in 3.0.0, and the page is ordered by something real instead.
Timers inside the app
/health/workout-timer and the guided sessions under Mind are part of
the app rather than the tools directory, because they write to your record and the tools do not.