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Ready to discuss your custom hat project? Please fill out the form or email us at info@keystonehats.com. Our team will respond within 6 hours.
Ready to discuss your custom hat project? Please fill out the form or email us at info@keystonehats.com. Our team will respond within 6 hours.

Use our online hat size calculator to instantly find your perfect fit. Simply enter your head circumference measurement to get accurate size recommendations. Automatically converts between US, UK, and EU sizing standards for global shopping convenience.
Use our professional hat size calculator to get accurate measurements for custom hat production. Our simple hat calculator provides precise hat size calculation for B2B manufacturing needs.
Calculating hat size involves measuring your head circumference and using ourinches to hat size calculator for accurate conversion. Our hat circumference calculatormakes it easy to calculate hat size for professional manufacturing.

How to calculate hat size US standards with our advanced capacity hat calculator
Head Circumference for Hat Size Calculation
How do I calculate my hat size? Follow these professional steps:
Pro Tip: How do you calculate your hat size accurately? Measure at the widest part of your head for the most precise hat size calculation.
When placing bulk orders, it’s important to order an appropriate distribution of sizes. Our sizing chart includes recommended order percentages based on typical distribution patterns.

Youth Sizing: For youth hats, sizes typically range from 6 1/8″ to 6 7/8″ (49-55 cm). When ordering for mixed age groups, we recommend allocating 10-15% of your order to youth sizes.
Infant/Toddler Sizing: For the youngest wearers, sizes range from 5 1/2″ to 6″ (46-48 cm). These specialized sizes should be ordered separately from adult bulk orders.
Adjustable Options: Consider snapback, velcro, or elastic closure options for events where precise sizing may be difficult. These adaptable styles can accommodate a wider range of head sizes.
Professional tools designed for B2B hat manufacturing and wholesale distribution. Learn how to calculate hat size with our comprehensive solutions.
Our hat circumference calculator provides precise measurements for professional manufacturing. Perfect for wholesale buyers and custom hat manufacturers.
Complete fitted hat size charts including New Era hat size chart specifications for professional distribution and simple hat calculator functionality.
Statistical data on hat size calculator measurements and capacity hat calculator features for inventory planning and bulk orders.
Professional hat size chart for accurate B2B manufacturing and wholesale distribution. Use our inches to hat size calculator reference guide below.
| Hat Size | Inches | CM |
|---|---|---|
| 6 3/4 | 21.25″ | 54 cm |
| 6 7/8 | 21.625″ | 55 cm |
| 7 | 22″ | 56 cm |
| 7 1/8 | 22.375″ | 57 cm |
| 7 1/4 | 22.75″ | 58 cm |
| 7 3/8 | 23.125″ | 59 cm |
| 7 1/2 | 23.5″ | 60 cm |
| 7 5/8 | 23.875″ | 61 cm |
Professional tools designed for B2B hat manufacturing and wholesale distribution. Learn how to calculate hat size with our comprehensive solutions.
Showcase your brand with precision-embroidered logos on premium snapback hats. Perfect for corporate merchandise, team uniforms, or retail.
Comprehensive fitted hat size charts including New Era hat size chart specifications for professional distribution.
Statistical data on hat size calculator men’s measurements and average hat size by age for inventory planning.
Frequently asked questions about hat size calculation and B2B hats manufacturing.
Hat size calculation involves measuring the circumference of your head and converting it to standard hat sizes. Our hat size calculation tool provides accurate measurements for professional manufacturing and wholesale distribution.
To calculate your hat size: 1) Measure your head circumference with a flexible tape measure, 2) Use our hat calculator to convert the measurement, 3) Reference our hat size chart inches for accuracy. Perfect for B2B orders and custom manufacturing.
For wholesale and B2B orders, hat sizes are calculated using standardized measurements. Our professional hat size calculator provides accurate sizing for bulk orders, custom manufacturing, and distribution to retail partners.
A 7 1/2 hat size equals approximately 60 cm in circumference. This is a common size for calculating hat size in professional manufacturing. Our hat decrease calculator helps determine proper fit for various head shapes.
For custom hat manufacturing, precise measurement is crucial. Use our hat circumference calculator along with professional measuring techniques. Consider factors such as material stretch, crown height, and intended use to achieve optimal B2B manufacturing results.
To determine your head size, measure the circumference of your head where you typically wear a hat or cap, usually about 1 inch above your eyebrows and ears. Use a flexible measuring tape, wrapping it around your head and reading the measurement. You can also use a piece of string and then measure the string with a ruler. If your measurement falls between sizes, it’s generally recommended to choose the larger size.
The average hat size for men is typically around 7 3/8, which translates to a head circumference of 23 1/4 inches or 57 cm. This size is often labeled as a “Large” or “L” in hat sizing charts. While this is a common average, individual head sizes can vary, so measuring your own head circumference is the best way to ensure a comfortable fit.
L, 7 3/8, or 7 1/4 if using international, American, and British sizes, respectively. A head circumference of 23.2 in / 59 cm corresponds to different sizes according to each country’s hat size chart.
A simple hat calculator is a streamlined tool for quick hat size calculation. It works by taking your head circumference measurement and instantly converting it to standard hat sizes. Our hat matrix calculator combines multiple calculation methods for comprehensive sizing solutions in B2B environments.
If you measured your head circumference and this measure falls in between two different sizes, it is recommended that you choose the larger size since it can be modified to produce a better fit.
Need more detailed sizing info? Visit our complete sizing guide.