30 40 is what size photo

A 30mm*40mm photo is equivalent to a 12-inch x 16-inch photo, so a 30mm 40mm photo should be counted as a two-inch smaller photo. According to the standard specifications, the size of a 1-inch photo is 25mm 30mm, and the size of a 2-inch photo is 35mm 49mm, so 30mm and 40mm should be counted as two inches.

30cmx40cm=12 inches x 16 inches (rounded integer) Conversion unit: 1 inch =

Photo size. 1 inch: one inch cm); one inch smaller cm); One inch larger cm).

inches: two inches cm); small two inches cm); Large 2 inches cm) 1 inch 1r cm).

2 inch 2r cm).

5 inches (3r) (cm).

6 4 (6 inches 4r) (cm).

7 5 (7 inches 5r) (cm).

8 6 (8 inches 6r) (cm).

10 8 (10 inches 8r) (cm).

12 10 (12 inches) (cm).

14 12 (14 inches) (cm).

16 12 (16 inches) (cm).

18 12 (18 inches) (cm).

Special. 18 14 (18 inches) (cm).

20 16 (20 inches) (cm).

20 18 (20 inches) (cm).

24 20 (24 inches) (cm).

30 24 (30 inches) (cm).

32 24 (32 inches) (cm).

36 24 (36 inches) (cm).

40 32 (40 inches) (cm).

42 32 (42 inches) (cm).

48 32 (48 inches) (cm).

Depending on what unit you have, if it's a pixel, it's the size of a fingernail. If it is a centimeter, it is equivalent to 12 inches**.

The 2-inch ** should be used for documents, generally with a white background.

Generally 40 inches**, the length is cm, and the width is cm.

Special ** Size:

ID card** (black and white headshot): x 2nd generation Dust Circle ID card.

26mm×32mm)

One inch smaller in black and white: x

Black and white one inch larger: x

Color small one inch blue background: x

Color small one inch white background: x

Color small one inch red background: x

Color one inch larger red background: x

Ordinary passport (color white background): Pata-tapo x

Driving license. Color headshot with red background): x

New version of the Hong Kong and Macao Toll Destruction Permit (color blue background): x

Hong Kong and Macau Permit (

Visa to the United States. Japan visa.

Two inches older (graduate photo (car photo) (.)

A 30mm*40mm photo is equivalent to a 12-inch x 16-inch photo, so a 30mm 40mm photo should be counted as a two-inch smaller photo. According to the standard specifications, the size of a 1-inch photo is 25mm 30mm, and the size of a 2-inch photo is 35mm 49mm, so 30mm and 40mm should be counted as two inches.

12-16 inches.

A 30mm*40mm photo is equivalent to a 12-inch x 16-inch photo, so a 30mm 40mm photo should be counted as a two-inch smaller photo. According to the standard specifications, the size of a 1-inch photo is 25mm 30mm, and the size of a 2-inch photo is 35mm 49mm, so 30mm and 40mm should be counted as two inches. The general photo specifications are:

1 inch: one inch 25*35(mm); Smaller one inch 22*32(mm) ; Large inch 33*48(mm)15*2 inch: 2 inch 35*49(mm) ; Small two inches 35*45 (mm); Large two inches 35*53(mm).

ID cards, physical examination forms, etc. mostly use a small inch 22 32mm, the second generation ID card 26mm 32mm, and the ordinary one-inch phase 25mm 35mm. The standard photo size of the passport travel document is 48mm 33mm.

Bareheaded** is to take off the hat**, bareheaded ID photo is the ID photo without a hat. Bareheaded** is generally used in official documents such as ID cards, work permits, student IDs or archival documents.

The 30-inch ** size is 24 x 30 inches for the following are the common ** sizes:

1 inch ** x.

2-inch ** x.

3 inches**6cm x.

5 inch ** x.

6 inches of ** x, 1 inch =, that's how we talk about inches. 6 inches** i.e. 4 x 6 inches.

7 inches**5 x 7 inches.

8 inches**6 x 8 inches.

10 inches**8 x 10 inches.

12 inches**10 x 12 inches.

16 inches**12 x 16 inches.

18 inches**14 x 18 inches.

20 inches**16 x 20 inches.

24 inches**20 x 24 inches.

30" **24 x 30 inches.

Some special sizes can be set according to your preference!

Summary. How big is 40*50cm**.

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40 cm x 50 cm is 20 inches, and the size is usually measured in inches, 1 inch cm. X inch** refers to the long side of the pants rent** sensitive to x inch. Such as the length of 5 inches of Hu Na **.

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20*30 is 12 inches**. Common ** sizes are as follows:

1 inch 2 inches. 6 inches, 7 inches.

8 inches 10 inches.

12 inches and 15 inches.

Extended Content:Photo size. The size of ** is in inches, 1 inch = , usually x inches refers to the length of inches on the long side. For example: 5 inches is ** long; 12 inches is the first long.

ID cards, physical examination forms, etc. mostly use a small inch 22 32mm, the second generation ID card 26mm 32mm, and the ordinary one-inch phase 25mm 35mm. The standard photo size of the passport travel document is 48mm 33mm, the head width is 21mm 24mm, and the head length is 28mm 33mm).

Generally 40 inches**, the length is cm, and the width is cm. 40 inch ** size:

1 inch = , usually how many inches refers to the inch length of the **long side. For example: 5 inches is ** long; 12 inches is the first long.

ID cards, physical examination forms, etc. mostly use a small inch 22 32mm, the second generation ID card** size is 26mm 32mm, and the ordinary one-inch photo is 25mm 35mm. The size of the Chinese passport travel document** is 48mm 33mm, of which, the head width is 15mm 22mm, and the head length is 28mm 33mm.

40k does not refer to ** size.

Rather, it refers to the size of the file, and cannot be used to determine the size of the file. The length and width of the image size are measured in pixels, and some in centimeters. Pixels and resolution pixels are the most basic units of digital images, each pixel is a small dot, and the dots (pixels) of different colors are gathered together to become a moving **, digital camera.

Pixels are often used as a basis for grading classification. <

KB does not refer to the size, but to the size of the file, and cannot be used to determine the size of the file. The length and width of the image size are measured in pixels, and some in centimeters. Pixels and resolution pixels are the most basic units of digital images, each pixel is a small dot, and different color points (pixels) are gathered together to become a moving picture**, digital cameras often use pixels as the basis for grade classification.

2. The higher the resolution, the more pixels are required. For example, if the resolution is 640 480, it will take about 310,000 pixels, and if it is 2048 1536, it will need up to 3.14 million pixels.

**Resolution is related to the image size and magnification ratio at the time of output, the higher the resolution, the larger the imaging size, the higher the magnification ratio, of course,**The file size of Suichun will also increase. These can all be modified by imaging software.