Health category
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Ideal Weight Calculator
Compare four common ideal weight formulas in one place. Enter your height, gender, frame size, and current weight to see your estimated ideal range, healthy BMI weight range, and how close you are to the average estimate.
Ideal Weight Range
155.0 lbs - 165.3 lbs
Across Devine, Robinson, Miller, and Hamwi
Average Ideal Weight
159.4 lbs
Adjusted for your selected frame size
Current vs. Average
+10.6 lbs
Above the average ideal estimate
Formula breakdown
Each formula gives a slightly different target, which is why the calculator shows a range.
Devine
160.9 lbs
Robinson
156.5 lbs
Miller
155.0 lbs
Hamwi
165.3 lbs
Healthy BMI range
For your height, BMI 18.5 to 24.9 corresponds to this weight range.
128.9 lbs - 173.5 lbs
How to read this
- The four classic ideal-weight formulas were designed for screening and dosing guidance, not body composition analysis.
- Frame size shifts the estimate slightly lower or higher to give you a more realistic range.
- The BMI healthy range is a separate benchmark, so it may be wider than the formula-based range.
- Use these numbers as rough targets, not a diagnosis. Muscle mass, age, and health conditions can change what is ideal for you.
EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.
Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.
Learn more about our review process on the EveryCalc methodology page.
How this calculator works
What this page estimates
This Ideal Weight Calculator is built to give a quick, browser-based estimate for ideal weight. Compare four common ideal weight formulas in one place. Enter your height, gender, frame size, and current weight to see your estimated ideal range, healthy BMI weight range, and how close you are to the average estimate. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.
Calculation approach
The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For health tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.
Example workflow
For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.
Practical checks
- Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
- Run a low, base, and high case when the inputs are estimates.
- Check the related calculators below when the next decision depends on a different assumption.
How to interpret the ideal weight result
Best use
Use the result as an informational wellness estimate that can help organize measurements, targets, or timing before a conversation with a clinician.
Cross-check
Compare the output with your own records, device readings, lab values, medication instructions, or guidance from a qualified health professional.
Watch for
Do not use this page to diagnose, treat, or ignore symptoms. Health calculators are most useful when they make questions clearer, not when they replace care.
This page belongs to the Health calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.
Before relying on this ideal weight estimate
Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.
Use current measurements
Recent weight, height, age, activity, nutrition, sleep, or timing inputs matter more than remembered estimates.
Look for context
A calculator can organize a wellness number, but it cannot read symptoms, medical history, medications, or lab results.
Escalate high-impact questions
Use clinical guidance for pregnancy, dosage, heart, risk, illness, or treatment decisions.
Rerun this page when measurements change, a clinician gives new guidance, or the result is being used for a new goal.
How to Use
- Choose your preferred height unit and enter your height.
- Select your gender and frame size to tailor the formula results.
- Add your current weight in pounds or kilograms to see how it compares with the formula average.
- Review the formula-by-formula breakdown, overall ideal range, healthy BMI range, and visual scale.
Frequently Asked Questions
What is an ideal weight calculator?
An ideal weight calculator estimates a target body weight based on your height and sex using established formulas. Our calculator compares several methods so you can see a range instead of relying on one single number.
Which ideal weight formula is most accurate?
No single formula is perfect for everyone. Devine, Robinson, Miller, and Hamwi were created for clinical estimation, and each produces slightly different results. Showing all four together gives you a more useful practical range.
Why does frame size matter?
People with smaller or larger frames often feel healthier at slightly different weights even at the same height. The frame-size adjustment nudges the estimate down or up to reflect that difference.
How is ideal weight different from BMI?
Ideal weight formulas give a target estimate based on height and sex, while BMI compares your weight with your height and places you in broad categories. They are related, but they are not the same measurement.
Should I use ideal weight as a medical goal?
Use it as a rough guideline, not a diagnosis or strict prescription. Muscle mass, age, body composition, and medical history all matter, so talk with a healthcare professional if you need personalized advice.
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