Free Tools
Penis Size Calculator with Visualizer for Comparison to Others
See how you compare and visualize what a size increase could look like.
Medically reviewed by Dr. Joel Pash · Updated September 2026
Penis Size Calculator
Enter your measurements to see how your size compares to the average. The calculator shows your exact percentile and how many out of every 10,000 men are above or below you.
Open CalculatorPenis Size Visualizer
The visualizer is our newest app. It is designed to allow you to visualize how your penis would look if you were to increase your size by the Upsize filler procedure. It shows your baseline and then has a slider allowing you to visualize the expected changes. Input the suggestions from the Penis Size Calculator into here to visualize the possible changes.
Open VisualizerTool 1
Penis Size Calculator
Average Dimensions Used for Calculations:
Average Length: 5.16 inches | Average Girth: 4.59 inches
Results
Potential Increases with Upsize Treatments:
Tool 2
Penis Size Visualizer
Enter your starting circumference and length below to visualize how a change would appear
Starting Size
New Size
Understanding Average Sizes Used in the Calculator
Most men wonder how their penis size compares to the average. Generally, the average erect penis is about 5.1 inches in length and 4.6 inches in girth. Average however, does not equal "normal." There are standard distributions from average that dictate the measurements that 66%, 90%, 95% and 99% will have as well. "Normal" can likely be considered anywhere within the 99th percentile meaning 1 out of 100 would be out of that range.
Where these averages come from
The averages and percentiles above are taken from the largest systematic review available — nomograms built from up to 15,521 men, each measured by a health professional rather than self-reported. That review puts average erect length at 5.16″ (SD 0.62″) and average erect girth at 4.59″ (SD 0.52″), the figures this calculator uses.
Reference: Veale D, Miles S, Bramley S, Muir G, Hodsoll J. Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15,521 men. BJU International, 2015;115(6):978–986. doi:10.1111/bju.13010
One caveat worth knowing: the review is strongest for flaccid measurements. The erect-girth figure comes from a much smaller subset of the men studied, so treat erect-girth percentiles as a useful guide rather than an exact ranking.
What is the Upsize Penis Filler Procedure?
The Upsize Procedure is a non-surgical, minimally invasive penis enlargement technique that uses hyaluronic acid fillers to increase penis girth. Filler does not increase erect length; it can add flaccid length, because the added volume stops full retraction. Every procedure is performed by a licensed physician who has completed the Urosculpt™ Certification Program.
All Apps Copyright 2026 Upsize LLC – Unauthorized use is prohibited by law.
All procedures are carried out by certified professionals. Individual results may vary. Please consult with a professional to discuss potential risks and benefits. Calculator is for educational purposes only.
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The first step is a no-pressure consultation with an Upsize expert. Discuss penile girth enhancement, address questions about penis size, and learn whether the procedure may be appropriate for you.