Penis Measurement: Tips for Accurate Results - Urology

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Length issue


Recently, I was curious about my length.
I read online that I should press down to the pubic bone, and after doing so, I measured it to be between 15.1 and 15.2 centimeters.
However, I noticed that there is still some distance from the zero mark on the ruler (about 0.5 centimeters).
Should I add that distance? For example, if I measured 15 centimeters, should I add 0.5 centimeters to make it 15.5 centimeters? Also, my penis is straight, so I assume the measurement with a straight ruler should have minimal error, right?

Wang Tongxue, 10~19 year old female. Ask Date: 2024/07/22

Dr. Du Shixi reply Urology


Hello: Wishing you good health.

Reply Date: 2024/07/22

More Info


When it comes to measuring the penis accurately, there are several important factors to consider to ensure that you get the most precise results. Here are some tips and guidelines to help you with your measurements:
1. Use the Right Tools: A flexible measuring tape or a ruler is ideal for measuring penis length. A straight ruler can work, but it may not conform to the natural curvature of the penis, which can lead to inaccuracies. If you use a ruler, ensure it is straight and laid flat against the pubic bone.

2. Positioning: To get an accurate measurement, it is essential to press the ruler or measuring tape against the pubic bone. This means you should push the measuring device into the fat pad at the base of the penis. This is crucial because the fat pad can add a few centimeters to the measurement if not accounted for.

3. Measurement Technique:
- For length, measure from the tip of the penis to the pubic bone. If you are measuring while erect, ensure that the penis is fully erect for the most accurate length.

- If you are measuring the girth, wrap the measuring tape around the thickest part of the shaft.
4. Adding Extra Length: If you measured 15.1 to 15.2 cm but noticed that the zero mark on the ruler is not at the base of the penis (due to the ruler's design), you should indeed add that extra distance to your measurement. For example, if you measured 15 cm and the zero mark is 0.5 cm away from the base, your total length would be 15.5 cm.

5. Consistency: It’s important to measure under the same conditions each time. For instance, measure at the same time of day, under similar temperature conditions, and in the same position (standing, sitting, etc.) to ensure consistency in your results.

6. Curvature Consideration: If your penis has a noticeable curve, measuring it straight along the curve can provide a more accurate representation of its length. However, if you are using a straight ruler, the measurement may be slightly less than the actual length when measured along the curve.

7. Understanding Variability: Remember that penis size can vary due to several factors, including temperature, arousal level, and time of day. It’s normal for measurements to fluctuate slightly.

8. Psychological Factors: It’s also worth noting that many individuals may feel self-conscious about their size. Understanding that penis size does not determine sexual ability or self-worth is important.
In conclusion, if you measured 15.1 to 15.2 cm and the zero mark on your ruler is about 0.5 cm away from the base, you should add that 0.5 cm to your measurement. Therefore, your final measurement would be approximately 15.6 to 15.7 cm. Always remember to measure consistently and under similar conditions for the most accurate results. If you have further questions or concerns about your measurements or sexual health, consider consulting a healthcare professional for personalized advice.

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