EDITORIAL DESK
Health guides
Guides in Health that teach the decision first, then hand off to the matching calculator.
51 guides on How To Calculate. Educational writing, not tax, medical, or investment advice.
By Ahmet C. Toplutaş·Site owner & editor · Guides that hand off to tools
Health archive
9 guides
Jul 22, 2026
HEALTH
Understanding BMI: Ratio, WHO Band Rail, Weight Corridor, Same-BMI FramesBMI is weight ÷ height², a screening ratio, not a health diagnosis. Walk the formula, WHO adult bands, the 18.5–24.9 weight corridor for your height, same-BMI different-body frames, and optional Asian overlay context. Educational only.
14 min read
Tool →Jul 22, 2026
HEALTH
BMI Inputs Done Right: Height, Weight, and Unit TrapsGet adult BMI right before you interpret it. A measurement protocol for height and weight, unit traps that flip categories, and worked examples of how small input errors move the band.
12 min read
Tool →Jul 22, 2026
HEALTH
Weekly Pace, Daily Calories, and the BMR FloorPlan weight change as a weekly pace, map it to a daily calorie target from maintenance, and check the BMR floor before you crash. Worked budgets, activity honesty, and when to hand off to TDEE or macros.
13 min read
Jul 22, 2026
HEALTH
Backdating Conception: LMP, Due Date, and the Look-Back BandEstimate conception by working backward from LMP or a due date, peel the luteal assumption, and read a look-back fertile band. Educational timing literacy, not contraception or a diagnosis.
13 min read
Tool →Jul 22, 2026
HEALTH
Resting Heart Rate: Count Window to BPM, Multi-Sample Average, Consistency PeelA single short pulse count can lie. Convert 15/30/60-second windows to BPM, average a morning trio, and read spread before you trust the band. Verified steady vs noisy twins with an educational adult rail. Not a diagnosis or ECG.
14 min read
Tool →Jul 22, 2026
HEALTH
After Your BMI Number: A Calm Next-Step Health StackTreat adult BMI as a screening map, not a verdict. Build a next-step stack with waist context, energy and habits, related calculators, and clear rules for when to talk to a clinician.
13 min read
Tool →Jul 22, 2026
HEALTH
Intermittent Fasting Schedules: Protocol Ladder and Window PlacementBuild a 14:10 to 20:4 fasting split on a 24-hour clock. See why the same 16:8 protocol changes with start time, and why an eating window is logistics, not an automatic calorie deficit.
13 min read
Tool →Jul 22, 2026
HEALTH
Protein Targets: Scale Weight vs Base Mass, and a g/kg LadderProtein is g/kg × mass, but which mass? Compare current vs goal weight at the same intensity, climb an RDA-to-cut ladder, and hand off to macros for the rest of the plate. Educational bands, not prescriptions.
13 min read
Tool →Jul 22, 2026
HEALTH
One-Rep Max Estimates: Submax Sets, Formula Twins, and %1RM LoadsTurn a hard submax set into an estimated 1RM with Epley and Brzycki, read the formula delta as noise, then build a %1RM intensity ladder for working weights. Estimates are programming tools, not tested gym ceilings.
13 min read
Tool →
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How to use this hub
- Pick a journey rail if you have a job (buy a house, plan retirement, check BMI).
- Read the guide for the decision framing and common mistakes.
- Open the linked calculator for the same numbers the article was written around.
- For methodology and corrections, see the editorial policy and author page.