How to measure your arm length

Learn how to measure your arm length accurately for the perfect fit in shirts, jackets, and arm-length garments. Our step-by-step guide provides clear instructions, from finding the starting point to measuring to the desired length. Help your customers achieve comfort and style with precise arm length measurements. Shop confidently using our size chart and enjoy fashion that complements your arms.

Welcome back to our size chart and measurement guide series! In this post, we’ll be focusing on how to measure your arm length accurately. Determining your arm length is essential for finding the right fit and ensuring comfort in shirts, jackets, and other arm-length garments. So, let’s dive into the step-by-step process!

Step 1

Gather the necessary tools: To measure your arm length, you’ll need a flexible measuring tape and a mirror (optional, but it can be helpful for self-measurements).

Step 2

Stand in a relaxed posture: Stand up straight with your arms resting at your sides and your shoulders relaxed. Keep your posture natural without stretching or slouching.

Step 3

Locate the starting point: Using the mirror or your fingers, find the starting point for measuring your arm length. This is typically the outer edge of your shoulder where the arm meets the shoulder joint.

Step 4

Position the measuring tape: Hold one end of the measuring tape at the starting point on your shoulder. Extend the tape down along the outer edge of your arm, following the contour of your arm. Ensure that the tape remains close to your skin without being too tight or loose.

Step 5

Measure to the desired length: Extend the tape down to the desired length, which can be the wrist bone or the point where you want your garment to end on your arm. Keep the tape straight and parallel to the floor.

Step 6

Read the measurement: Look straight ahead into the mirror or ask someone for assistance to read the measurement on the tape. Take note of the number where the tape reaches the desired arm length. This number represents your arm length measurement.

Step 7

Double-check and record: To ensure accuracy, repeat the measurement two or three times. Write down the average of these measurements for your reference.

Step 8

Match your measurement with the size chart: Now that you have your arm length measurement, refer to the size chart provided by the store. Find the corresponding size based on your measurement. Remember that different brands may have slight variations in their sizing, so always check the specific brand’s size chart.


Congratulations on discovering your ideal arm length! Accurate arm length measurements are crucial for achieving a comfortable and well-fitted look in shirts, jackets, and other arm-length garments. By following this comprehensive guide, you can confidently select the right size and enjoy garments that flatter your arms. If you have any further questions or need assistance, don’t hesitate to reach out to our support team. Happy shopping!