Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio (WHR) and cardiovascular risk classification instantly — enter your waist and hip measurements to get your WHR, WHO risk category (Low, Moderate, High, or Very High), and a colour-coded visual scale. Optionally add your height for a waist-to-height ratio. Supports metric and imperial units with sex-specific thresholds. Free, private, and no signup required.
Enter your waist and hip measurements to instantly calculate your waist-to-hip ratio (WHR) and cardiovascular risk classification. Optionally add your height to also get your waist-to-height ratio. All calculations run locally in your browser — no data is sent to any server.
Measure at the narrowest point (navel level)
Measure at the widest point of hips/buttocks
For waist-to-height ratio (bonus)
How to Measure Correctly:
- Waist: Measure at the narrowest point of your torso, typically at or just above the navel. Stand relaxed, exhale normally, and measure without pulling the tape tight.
- Hip: Measure at the widest point of your hips and buttocks. Keep the tape parallel to the floor.
- Take measurements in the morning before eating, wearing minimal clothing.
- All calculations run locally in your browser — your data is never sent to any server.
Why Use Our Waist-to-Hip Ratio Calculator?
Accurate WHR with WHO Risk Classification
Our waist-to-hip ratio calculator uses the WHO standard thresholds for cardiovascular risk classification — Low, Moderate, High, and Very High — with sex-specific cutoffs (male: 0.90/0.96/1.00; female: 0.80/0.86/0.90). Optionally add your height to also get your waist-to-height ratio, a complementary health metric.
Visual Scale & Reference Table
See your WHR plotted on a colour-coded risk scale with a blue marker at your exact value. A reference table shows all four risk categories with their ranges for your sex, with your current category highlighted — making it easy to understand where you stand and what to aim for.
Completely Private & Secure
All waist-to-hip ratio calculations happen locally in your browser. Your body measurements and health data are never sent to any server — 100% private when you use our waist-to-hip ratio calculator online.
No Installation Required
Use our free waist-to-hip ratio calculator directly in your browser — no downloads, no plugins, no account needed. Supports metric (cm) and imperial (inches) units with automatic conversion for all calculations.
Common Use Cases for Waist-to-Hip Ratio Calculator
Cardiovascular Risk Assessment
Individuals and healthcare professionals use the waist-to-hip ratio calculator to assess cardiovascular disease risk. WHR is a stronger predictor of heart attack and stroke risk than BMI alone, because it specifically measures abdominal fat distribution.
Tracking Body Composition Changes
People on a weight loss or fitness programme use the waist-to-hip ratio calculator to track changes in body fat distribution over time. A decreasing WHR indicates that abdominal fat is being reduced, even if total weight loss is modest.
Annual Health Check-Ins
Health-conscious individuals use the waist-to-hip ratio calculator as part of their annual health monitoring alongside BMI, blood pressure, and cholesterol. WHR provides a quick, equipment-free assessment of metabolic health risk.
Fitness Goal Setting
Personal trainers and fitness coaches use the waist-to-hip ratio calculator to set body composition goals for clients. Moving from High Risk to Moderate Risk WHR is a meaningful, measurable fitness target that goes beyond scale weight.
Comparing WHR with BMI
Researchers and clinicians use the waist-to-hip ratio calculator alongside BMI to get a more complete picture of health risk. WHR captures central obesity that BMI misses — a person can have a normal BMI but a high WHR, indicating elevated metabolic risk.
Diabetes & Metabolic Syndrome Screening
People with a family history of type 2 diabetes or metabolic syndrome use the waist-to-hip ratio calculator to monitor their abdominal fat levels. High WHR is strongly associated with insulin resistance and metabolic syndrome.
Understanding Waist-to-Hip Ratio and Cardiovascular Risk
What is Waist-to-Hip Ratio?
Waist-to-hip ratio (WHR) is a simple measurement that compares the circumference of your waist to the circumference of your hips. It is calculated by dividing waist measurement by hip measurement: WHR = Waist ÷ Hip. WHR is used by the World Health Organization (WHO) and health researchers as a predictor of cardiovascular disease, type 2 diabetes, and metabolic syndrome risk. Unlike BMI, WHR specifically measures central obesity — the accumulation of fat around the abdomen — which is more strongly linked to health risk than overall body fat. Our browser-based waist-to-hip ratio calculator uses WHO standard thresholds with sex-specific risk classifications.
How Our Waist-to-Hip Ratio Calculator Works
- Enter Your Measurements: Input your waist circumference (measured at the narrowest point, typically at or just above the navel) and hip circumference (measured at the widest point of the hips and buttocks). Optionally add your height to also calculate your waist-to-height ratio.
- Select Sex and Units: Choose male or female for sex-specific risk thresholds, and select metric (cm) or imperial (inches). The calculator converts automatically.
- Instant Browser-Based Calculation: Click Calculate WHR. The waist-to-hip ratio calculator applies the WHO formula entirely in your browser — your health data is never sent to any server.
What the WHR Calculator Shows
- WHR Value: Waist circumference divided by hip circumference, expressed as a decimal (e.g. 0.85).
- Cardiovascular Risk Category: Low, Moderate, High, or Very High risk based on WHO thresholds — sex-specific cutoffs for male (0.90/0.96/1.00) and female (0.80/0.86/0.90).
- Visual Risk Scale: A colour-coded scale showing your WHR position relative to all four risk categories.
- Waist-to-Height Ratio (optional):If you enter your height, the calculator also computes your waist-to-height ratio (WHtR), classified as Healthy (<0.50), Overweight (0.50–0.60), or Obese (>0.60).
WHR vs BMI — Which is Better?
Both WHR and BMI are useful health screening tools, but they measure different things. BMI measures overall body weight relative to height and cannot distinguish fat from muscle or central fat from peripheral fat. WHR specifically measures abdominal fat distribution, which is more strongly associated with cardiovascular disease, insulin resistance, and metabolic syndrome. Research suggests that WHR is a better predictor of cardiovascular events than BMI, particularly in people with normal BMI but central obesity. Using both metrics together gives the most complete picture of health risk. Always consult a healthcare professional for a comprehensive health assessment.
Related Tools
Voice Recorder & Audio Extractor
Record high-quality audio from your microphone or extract audio from MP4 and WebM video files offline. 100% secure, browser-based utility.
Audio Slicer & Converter
Trim audio clips and convert between MP3, WAV format client-side - Free online audio cutter
ID3 Tag & Metadata Editor
Read and write ID3 tags, album art, artist, and track details directly to MP3 file headers - Free online ID3 tag editor
MP3 Metadata Viewer
View all ID3 tags — title, artist, album, artwork, BPM, and every embedded frame — from any MP3 file instantly in your browser - Free online MP3 metadata viewer
Frequently Asked Questions About Waist-to-Hip Ratio Calculator
A waist-to-hip ratio calculator computes the ratio of your waist circumference to your hip circumference and classifies your cardiovascular risk using WHO standard thresholds. Our waist-to-hip ratio calculator supports sex-specific risk categories (Low, Moderate, High, Very High), a visual scale, and an optional waist-to-height ratio — all running locally in your browser with no signup required.
WHR = Waist Circumference ÷ Hip Circumference. Both measurements should be in the same unit (cm or inches). For example, a waist of 85 cm and hip of 100 cm gives a WHR of 0.85. The result is a dimensionless ratio — the unit cancels out.
According to WHO standards, a healthy (Low Risk) WHR is below 0.90 for men and below 0.80 for women. A WHR above 1.00 for men or above 0.90 for women indicates Very High cardiovascular risk. The waist-to-hip ratio calculator shows your exact risk category based on these thresholds.
Measure your waist at the narrowest point of your torso, typically at or just above the navel. Stand relaxed, exhale normally, and measure without pulling the tape tight. Measure your hip at the widest point of your hips and buttocks, keeping the tape parallel to the floor. Take measurements in the morning before eating for the most consistent results.
WHR and BMI measure different aspects of health. BMI measures overall weight relative to height but cannot distinguish fat from muscle or central fat from peripheral fat. WHR specifically measures abdominal fat distribution, which is more strongly linked to cardiovascular disease, insulin resistance, and metabolic syndrome. Using both together gives the most complete picture.
Waist-to-height ratio (WHtR) = Waist ÷ Height. A WHtR below 0.50 is generally considered healthy. WHtR is a simpler metric that does not require hip measurement and is considered by some researchers to be a better predictor of metabolic risk than WHR. Our waist-to-hip ratio calculator computes both if you enter your height.
Yes. WHR can be improved through regular aerobic exercise (which reduces abdominal fat), strength training (which increases hip muscle mass), and a balanced diet that reduces overall calorie intake. Spot reduction of abdominal fat is not possible — overall fat loss through a calorie deficit is the most effective approach.
Absolutely. All waist-to-hip ratio calculations run entirely in your browser. Your body measurements and health data are never sent to any server, stored in a database, or tracked. Everything stays completely private on your device.
Yes. The waist-to-hip ratio calculator is 100% free with no signup required, no premium tier, no usage quotas, and no ads blocking the interface. Calculate your WHR as many times as you need, directly in your browser.