Waist-to-Hip Ratio Calculator

What is the Waist-to-Hip Ratio Calculator?

Calculate waist-to-hip ratio and compare it with WHO guidance. Waist-to-hip ratio compares waist and hip size, and the World Health Organization uses it as one indicator of health risk related to body shape.

How to use the Waist-to-Hip Ratio Calculator

1. Enter your sex, your waist, your hip.
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: waist-to-hip ratio, who guidance.
4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Worked example

With sex = Female, waist = 76 cm, hip = 100 cm, the Waist-to-Hip Ratio Calculator returns waist-to-hip ratio: 0.76; who guidance: Low risk.

Where the Waist-to-Hip Ratio Calculator helps in real life

Your doctor mentioned waist-to-hip ratio at a checkup and you want to track it at home. Measuring waist and hips and entering them gives the ratio and how it compares with WHO guidance.

You are six months into a fitness program. Recording the ratio every month shows changes in body shape that body weight alone can hide.

Common mistakes to avoid

• Measuring hips above or below their widest point.
• Letting the tape slope instead of keeping it level.
• Measuring over thick clothing.
• Treating the result as a diagnosis.

💡 Practical tip: WHO guidance uses different risk thresholds for men and women, so select the right option before reading the result.

Tips for better results

• Measure hips at the widest part of the buttocks.
• Use a flexible tape held level all the way around.
• Record measurements in the same unit every time.

⚠️ This tool provides general information and is not medical advice. It is not a substitute for diagnosis or treatment by a qualified healthcare professional.

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