What is the bottom diameter of a 21-inch umbrella? How wide is it when it is unfolded?

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What is the bottom diameter of a 21-inch umbrella

Date:2024-07-06

1 inch is approximately equal to 2.54cm, and the diameter of a 21-inch umbrella is about 95cm.

21-inch umbrella

However, it should be noted that the diameter of the umbrella may vary slightly due to the design and manufacture of the umbrella. The shape of the umbrella surface of some umbrellas may not be a completely regular circle, or the degree of extension of the umbrella ribs may be different, which may cause a certain deviation between the actual shaded diameter of the umbrella and the theoretical calculated value.

When buying an umbrella, if you have more precise requirements for the diameter of the umbrella, it is recommended to refer to the specific size description on the product details page, or consult the seller for more accurate information.

21-inch umbrella

Generally speaking, a 21-inch umbrella is a smaller size umbrella, usually suitable for single use, such as children or people with a petite figure. If a larger shaded area is required, you may need to choose a larger umbrella, such as a 23-inch, 25-inch or larger umbrella.
The following are some common umbrella sizes and their approximate range of diameters under the umbrella:
Small umbrella surface: The umbrella surface size is less than 21 inches (common sizes such as 17 inches, 19 inches, and 21 inches), and the diameter under the umbrella is generally less than 95cm, suitable for children or single use.
Medium umbrella: The size of the umbrella is 22-25 inches (23 inches is a more common umbrella size), the diameter under the umbrella is about 98-114cm, suitable for parents and children or two people.
Large umbrella: The size of the umbrella is 27-30 inches (inclusive), the diameter under the umbrella is more than 120cm, suitable for men or multiple people.
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