Ideal Weight Calculator
Calculate your ideal body weight based on height and gender.
Quick guide
What ideal weight means
Ideal body weight is an estimated weight range that may be healthy for a person based on height and sex. It is useful as a planning reference when you want something more structured than "lose a bit".
The formulas here were originally used in clinical settings and are still helpful for general fitness planning. They are not a diagnosis and do not replace a personal health assessment.
Why show more than one formula
Different formulas produce slightly different answers. Showing the range makes the result more honest and gives you a better sense of the likely target zone for your height.
- Robinson, Miller, Devine, and Hamwi each use a slightly different estimate
- The range is more useful than a single number when planning long-term habits
- Muscle mass, frame size, and body composition can shift the practical target
- BMI range helps provide an additional sanity check
A practical example
If the formulas suggest a wide range, do not worry. The useful takeaway is the zone, not a single exact value. A person can be above or below one formula and still be healthy depending on lifestyle and body type.
Frequently Asked Questions
Which ideal weight formula is the most accurate?
No formula is perfect for everyone. The best use of this tool is to compare the range across formulas and look for a sensible target zone.
Does ideal weight account for muscle mass?
No. These formulas are based mainly on height and sex, so people with a lot of muscle can weigh more than the suggested range and still be healthy.
How should I use the BMI range shown here?
BMI gives a second reference point next to the formula results. Together they help you see whether your current weight is broadly in a healthy range for your height.
Quick answer
Ideal Weight Calculator is built for people who want a fast, browser-based way to calculate your ideal body weight based on height and gender. The tool works well for quick checks on mobile or desktop, and the supporting explanation helps you understand the result instead of treating it like a black box.
How to use this tool
- Fill in the required values carefully and keep the units or date formats consistent.
- Read the primary result first, then review the supporting breakdown to understand how the answer was produced.
- Change one input at a time if you want to compare scenarios and make a clearer decision.
How to interpret the result carefully
Health calculators are useful for direction, not diagnosis. They help you create a starting point, notice a trend, or understand a measurement, but they do not replace symptoms, lab work, medical history, or professional review.
That is why the number matters most when you combine it with context: how you feel, what your doctor has told you before, and whether the result is part of a pattern over time instead of a one-off reading.
When this result is useful
Use the result as a quick health or fitness reference when you want a clearer starting point for daily decisions.
It works best when paired with common sense, your medical history, and professional advice if symptoms, medication, or long-term conditions are involved.
A practical health check example
Someone tracking progress over a few weeks can use Ideal Weight Calculator to create a clearer baseline instead of relying on guesswork.
The value becomes more useful when you compare it with daily habits such as food, sleep, hydration, movement, and recovery rather than treating the number as a final diagnosis on its own.
Common interpretation mistakes to avoid
- Treating one result as a diagnosis instead of a screening reference.
- Ignoring age, body composition, medical history, or medication context.
- Using a number once and never checking whether it changes over time.
- Skipping professional advice when symptoms or risks are already present.
Sources and notes
For informational use only. This tool is not medical advice and should not replace diagnosis, treatment, or individualized guidance from a qualified healthcare professional.