Ideal or Healthy Weight Calculator

Healthy Weight Calculator Sign

This calculator will help you to calculate the ideal amount you should weigh based on your gender, height, and body-frame type.

Plus, it will also tell you how many pounds or kilograms you will need to lose or gain to achieve that ideal.

The calculations used in this calculator are based on the Hamwi Method, a formula developed by Dr. G.J. Hamwi.

What sets this formula apart from other similar formulas (Robinson Formula, Miller Formula, etc.) is that the Hamwi Method accounts for differences in body frames (small, medium, and large). Note that this formula is usually only recommended for adults who are at least 5 feet tall.

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Healthy Weight Calculator

Calculate ideal weight for female or male and using standard or metric units.

Special Instructions

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Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None
Measure:Measurement:Measurement preference:Measurement preference:

Measurement preference:

Select your preferred measurement type.



Select male or female.

Frame:Body frame:Body frame:Body frame:

Body frame:

To estimate your frame size, wrap your thumb and index finger around the opposing wrist. If your thumb and finger overlap, you have a small frame. If your thumb and finger barely touch, you have a medium frame. If your thumb and forefinger don't touch, you have a large frame.

Hgt inches:Height inches:Height in inches:Height in inches:
Convert x'x" to Inches
= inches


Enter your height (without shoes on) in your selected unit of measurement. Inches for standard and centimeters for metric. Use the decimal equivalents for fractions (for 1/4 enter .25, for 1/2 enter .5, for 3/4 enter .75).

If you need to convert feet and inches to inches, expand the description to reveal a mini feet-to-inches conversion calculator.

Wgt lbs:Weight lbs:Weight in pounds:Weight in pounds:


Enter your weight in your chosen unit of measurement. Pounds for standard and kilograms for metric.

Ideal wgt:Ideal weight:Healthy/ideal weight:Healthy/ideal weight:

Healthy or ideal weight:

This is the estimate of ideal amount you should weigh. No single calculator is capable of determining your exact "ideal," as none can account for your unique fat proportion, bone density, or muscle mass. However, just having an estimated target is better than having no goal at all. As long as you don't go below the safe level of calories per day (1,000-1,200 for women, 1,300-1,500 for men), common sense and a mirror will tell you when you've reached your own unique HW.



This is the weight you would need to lose/gain in order to achieve your estimated ideal weight.

If you would like to save the current entries to the secure online database, tap or click on the Data tab, select "New Data Record", give the data record a name, then tap or click the Save button. To save changes to previously saved entries, simply tap the Save button. Please select and "Clear" any data records you no longer need.

Help and Tools

Adjust Calculator Width:

Move the slider to left and right to adjust the calculator width. Note that the Help and Tools panel will be hidden when the calculator is too wide to fit both on the screen. Moving the slider to the left will bring the instructions and tools panel back into view.

Also note that some calculators will reformat to accommodate the screen size as you make the calculator wider or narrower. If the calculator is narrow, columns of entry rows will be converted to a vertical entry form, whereas a wider calculator will display columns of entry rows, and the entry fields will be smaller in size ... since they will not need to be "thumb friendly".

Show/Hide Popup Keypads:

Select Show or Hide to show or hide the popup keypad icons located next to numeric entry fields. These are generally only needed for mobile devices that don't have decimal points in their numeric keypads. So if you are on a desktop, you may find the calculator to be more user-friendly and less cluttered without them.

Stick/Unstick Tools:

Select Stick or Unstick to stick or unstick the help and tools panel. Selecting "Stick" will keep the panel in view while scrolling the calculator vertically. If you find that annoying, select "Unstick" to keep the panel in a stationary position.

If the tools panel becomes "Unstuck" on its own, try clicking "Unstick" and then "Stick" to re-stick the panel.