Health & Fitness
How Is Ideal Weight Determined?
How Is Ideal Weight Determined: calculation method, required inputs, worked check, limitations and a link to Ideal Weight Calculator. Reviewed 24 September 2...
For “How Is Ideal Weight Determined”, the linked Ideal Weight Calculator is relevant because See estimated ideal weight ranges from several classic formulas based on height and sex.
What this specific question is asking
Most wrong answers here are setup errors, not math errors. Confirm sex and height (cm) — units, periods and definitions — before you touch Ideal Weight Calculator, and keep the output's unit attached when you use it.
A fast validation: take the worked example (As a worked reference for “How Is Ideal Weight Determined”, Worked…), swap in your own sex, and confirm the result shifts in the direction the relationship predicts. If it moves the wrong way, recheck the units before the math.
Inputs to verify
- Verify sex before calculation; if this value uses a different unit, period or definition, convert or restate it first.
- Verify height (cm) before calculation; if this value uses a different unit, period or definition, convert or restate it first.
Step-by-step check
- Select your sex.
- Enter your height in centimetres for the formulas.
- Press Calculate to see several ideal-weight estimates.
- Read them as a range, not a single fixed goal.
Worked example and sanity check
As a worked reference for “How Is Ideal Weight Determined”, Worked example For a 175 cm male (Devine formula): 50 + 2.3 × ((175−152.4)/2.54) = 70.5 kg as a rough reference, not a target.
Interpreting the result
Once the number is in hand, ask what decision it feeds. The example's 70 shows the expected scale for typical inputs. Use your result the same way: as one checked input into the decision, not the whole decision. Treat the number as a screening estimate for orientation, not a diagnosis or a personalised prescription; individual measurement error and physiology dominate any formula's precision.
Verify any current tax threshold, lender rate, provider rule or health guidance with the authoritative source before acting.
Use the Ideal Weight Calculator
Common questions
Which inputs matter most for how is ideal weight determined?
The key inputs are Sex, Height (cm). Match their units and periods before using Ideal Weight Calculator.
How can I check an answer for how is ideal weight determined?
Reproduce the worked example with its stated inputs first, then change sex by a known amount and confirm the output moves the way the relationship predicts. Only then substitute your own values.
When should I recalculate how is ideal weight determined?
Re-run it when the real-world inputs move — new measurements, changed rates or thresholds, or a different unit convention on the same quantity.
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