Cardiometabolic Screening

Free Waist-to-Hip CalculatorWHO cardiometabolic risk ranges

100% Free. Assess body fat distribution and cardiometabolic risk by comparing your waist and hip measurements. Instantly receive classification ranges for men and women with practical lifestyle advice.

Waist-to-hip ratio
Gender-specific risk ranges
Actionable habit coaching

After this result, continue with BMI, Body Fat, BMR, or another tool above.

Measurement units

Waist-to-Hip Ratio

Measure waist at the narrowest point and hips at the widest point. Stand relaxed with feet together.

cm
cm

Risk categories follow World Health Organization waist-to-hip ratio cutoffs for adult men and women.

Why use this calculator

Practical guidance designed to work alongside your BMI results

Spot Central Adiposity Risks

Waist-to-hip ratio (WHR) identifies abdominal fat distribution that BMI can miss. Elevated WHR correlates with increased cardiometabolic risk even when BMI falls inside the healthy range.

Gender-Adjusted Classifications

The calculator instantly classifies your ratio as low, moderate, or high risk using World Health Organization guidelines for men and women. Color-coded tags make it easy to monitor progress.

Lifestyle Recommendations

Each result includes tailored suggestions for nutrition, movement, and stress reduction. Use the insights to reduce visceral fat and improve long-term heart health.

How to get accurate results

Follow these steps so your numbers are useful, not just interesting

How to Capture Accurate Waist and Hip Measurements

Reliable measurements produce reliable insights. Use a cloth tape, relax your abdomen, and take each measurement two to three times to minimize error.

  • Waist: measure at the narrowest point between your rib cage and navel after gently exhaling.
  • Hip: wrap the tape around the fullest part of the hips and glutes while standing with feet shoulder-width apart.
  • Keep the tape level and parallel to the floor—do not pull excessively tight or leave slack.
  • Record measurements at the same time of day each session to reduce daily fluctuations.

Using WHR Alongside Other Health Markers

Waist-to-hip ratio is one input in a holistic health assessment. Combine it with BMI, body fat percentage, blood pressure, and lab results to build a complete picture.

  • Pair WHR with fasting glucose and triglycerides when assessing metabolic syndrome risk.
  • Track waist measurements monthly—visceral fat responds well to resistance training and sleep optimization.
  • Use moderate-intensity cardio sessions and whole-food nutrition to lower WHR over time.
  • Consult a clinician if your ratio is in the high-risk range and you have family history of heart disease or diabetes.
Cardiometabolic screening guide

Waist-to-hip ratio: a simple check for fat distribution risk

Waist-to-hip ratio (WHR) compares abdominal girth to hip girth. It highlights fat distribution—especially central fat—which is more strongly tied to cardiometabolic risk than weight alone. WHO publishes gender-specific cutoffs you can use as a screening signal.

Sample WHR readings

Rounded examples using common adult measurements

Example A · Low risk

  • Man
  • Waist 82 cm
  • Hip 98 cm

0.84

Low risk

Example B · Moderate

  • Woman
  • Waist 78 cm
  • Hip 96 cm

0.81

Moderate risk

Example C · High risk

  • Man
  • Waist 104 cm
  • Hip 100 cm

1.04

High risk

Examples are rounded for readability. Use the calculator above for your exact inputs.

Why waist-to-hip ratio matters

Two people can share a BMI yet differ sharply in visceral fat. Higher waist relative to hips is associated with greater risk of heart disease, type 2 diabetes, and related conditions in population studies.

WHR is quick, cheap, and repeatable—ideal as a monthly home check alongside BMI.

How to measure waist and hips correctly

Stand upright, feet together, and breathe normally. Use a flexible tape snug to the skin without compressing soft tissue.

  • Waist: roughly at the midpoint between the lower rib and the top of the hip bone, or the narrowest point
  • Hips: widest part of the buttocks
  • Measure twice and average if readings differ by more than 1 cm / 0.5 in
Do not suck in your stomach. A “flattering” measurement is a useless measurement.

WHO risk categories for men and women

Cutoffs differ by sex because typical fat patterning differs.

  • Men: low < 0.90, moderate 0.90–0.99, high ≥ 1.0
  • Women: low < 0.80, moderate 0.80–0.84, high ≥ 0.85

What helps improve a high WHR

Reducing central fat usually responds to overall fat loss: a modest calorie deficit, more daily steps, resistance training, better sleep, and limiting excess alcohol. Spot-reduction ab exercises alone will not fix ratio.

  • Track WHR monthly rather than weekly
  • Combine with body-fat % and BMI for a fuller picture
  • Seek medical advice if risk is high or you have symptoms like chest pain, extreme thirst, or unexplained fatigue

About this calculator

This free waist-to-hip calculator applies commonly cited WHO risk bands for adults. It is a screening education tool—not a cardiovascular diagnosis.

Official references for this calculator

Primary public and peer-reviewed sources that inform the formulas, category bands, or screening cutoffs used here.

  1. 1World Health Organization (WHO)
    Waist circumference and waist–hip ratio (report of a WHO expert consultation)

    Foundational WHO reference for waist and waist–hip ratio cutoffs used in cardiometabolic screening.

    https://www.who.int/publications/i/item/9789241501491

  2. 2World Health Organization (WHO)
    Obesity and overweight (fact sheet)

    Adult overweight ≥25 BMI and obesity ≥30 BMI; explains BMI as a population screening marker.

    https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight

  3. 3NICE (UK)
    Overweight and obesity management (NG246) – identifying and assessing overweight, obesity and central adiposity

    Includes standard adult BMI bands and lower thresholds for some ethnic groups (e.g. Asian backgrounds).

    https://www.nice.org.uk/guidance/ng246/chapter/identifying-and-assessing-overweight-obesity-and-central-adiposity

Educational use only. Category labels on this site summarize public guidance and may not capture every local clinical pathway. Always follow advice from your clinician or national health service.

More health calculators

Pair this tool with BMI and other body-composition calculators

Frequently Asked Questions

Straight answers about accuracy, timing, and how to use your results

For most men, ratios below 0.90 indicate low risk, 0.90–0.99 indicate moderate risk, and 1.0 or higher suggest high risk. For women, below 0.80 is low, 0.80–0.84 is moderate, and 0.85 or higher is high risk according to WHO guidelines.