Ideal Weight Calculator

Find your ideal weight using multiple formulas

Your Details

Gender

Height (cm)

Frame Size

Results

Recommended Range

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Devine Formula---

Robinson Formula---

Miller Formula---

Hamwi Formula---

Average---

Ideal Weight Formulas

This calculator uses four scientifically-developed formulas to estimate ideal body weight.

Devine (1974): Most widely used in clinical settings
Robinson (1983): Modified version of Devine
Miller (1983): Tends to give higher values
Hamwi (1964): One of the earliest formulas

Frequently Asked Questions

What is the ideal weight for my height?

Ideal weight varies by gender and frame size. For a 170cm male, it ranges from 63-73 kg depending on the formula used.

Which ideal weight formula is most accurate?

No single formula is perfect. The average of Devine, Robinson, Miller, and Hamwi formulas gives a reasonable range.

Does frame size affect ideal weight?

Yes. People with larger bone structure (wider wrists, broader shoulders) naturally weigh more at the same height.

Go deeper

Read the SnoopTool guide behind this tool

The calculator gives you the number. These SnoopTool guides explain the method, the assumptions and the decision — with worked examples, data tables and FAQs.

Best Free Health Calculators (2026)Free BMI, calorie, body fat, macro, water intake and pregnancy due date calculators. What each number means, and the limits of BMI nobody mentions.

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Answers, not just a number

Short, exact answers to the questions people ask alongside this tool — the number first, then the working.

All 67 SnoopTool answersOne question per page, with the working shown

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