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Measure your waist circumference at the navel. Measure your hips at their widest point. Take your measurements twice. Divide your waist size by your hip size and interpret your results.
Stand up straight and place the measuring tape to your bare waist between your lowest ribs and hip bones. Exhale normally, then measure your waist circumference. Write the number down and label it so you don't confuse it with your hip measurement. For an accurate measurement, wear a skintight article of clothing or place the measuring tape directly against your skin. Wrap the measuring tape around the widest part of your hips. This is usually around where your thighs meet your hips and the lower part of your hip bones point out to your sides. Keep the measuring tape parallel with the floor and free of any kinks or twists. Write down your hip measurement and label it so you don't confuse it with your waist circumference. Since taking your waist-to-hip ratio involves multiple numbers, there's a higher chance of making an error. Taking your measurements twice will help you ensure they're accurate. If your measurements don't match up, measure yourself a third time and go with the measurement it matches. It doesn't matter if you're measuring in inches or centimeters, as long as both waist and hip measurements use the same unit. For men, a ratio higher than 0.95 indicates an increased risk of health issues. For women, increased risk starts at a ratio of 0.85. For example, if you're a man with a waist circumference of 36 inches (91cm) and a hip circumference of 40 inches (100cm), your ratio is 0.9, which is just below the increased risk benchmark.