Standard postcard sizes vary slightly depending on the country, but here are some common ones:
1. **International Postcard Size**: 9 cm x 14.5 cm (3.5 in x 5.7 in) - This is a standard size for postcards sent internationally.
2. **US Standard Postcard Size**: 6 inches x 4 inches (15.2 cm x 10.2 cm) - This is the most common size used in the United States.
3. **Australian Postcard Size**: 9 cm x 13.5 cm (3.5 in x 5.3 in) - Similar to the international standard, but slightly smaller.
4. **Canadian Postcard Size**: 6 inches x 3.5 inches (15.2 cm x 8.9 cm) - Smaller than the US standard, but still widely used.
Keep in mind that while these sizes are considered "standard," there may be variations depending on the country or region you're sending to. Additionally, some postcards may be larger or smaller than these standards due to specific designs or formats.
When designing a postcard, it's always a good idea to check with your local postal service or online resources for guidance on the most suitable size and dimensions for international or domestic mailing.
The standard postcard size varies slightly depending on the country or region, but here are some common sizes:
* In Europe (including UK and Australia):
+ Long side: 10.5 cm (4.1 inches)
+ Short side: 6.7 cm (2.6 inches)
* In North America (USA and Canada):
+ Long side: 8.9 cm (3.5 inches)
+ Short side: 5.7 cm (2.25 inches)
So, to give you a rough estimate in centimeters:
* European postcard size: approximately 10.5 x 6.7 cm
* North American postcard size: approximately 8.9 x 5.7 cm
Keep in mind that these are general guidelines, and some countries or regions may have slightly different standards for postcard sizes.
Here are some common postcard sizes in inches:
1. **Standard Postcard**: 3.5 x 5.5 inches (8.9 x 14 cm) - This is the most common size for postcards and is widely accepted by postal services.
2. **Large Postcard**: 4 x 6 inches (10.2 x 15.2 cm) - A bit larger than the standard, these postcards can hold more information or a larger photo.
3. **Jumbo Postcard**: 5 x 7 inches (12.7 x 17.8 cm) - Perfect for those who want to share a longer message or a larger image.
4. **Mini Postcard**: 2.5 x 3.5 inches (6.4 x 8.9 cm) - A smaller version of the standard postcard, great for quick notes or small photos.
5. **Greetings Card**: 4.25 x 5.5 inches (10.8 x 14 cm) - Similar to a postcard, but often used as a greeting card with a more personal message.
Keep in mind that some countries may have slightly different standard sizes, so it's always a good idea to check the specific dimensions required by your postal service if you're planning to send postcards internationally.
Here are the common postcard sizes in millimeters (mm):
* Standard postcard: 89 x 140 mm (3.5 x 5.5 inches)
* Large postcard: 100 x 148 mm (3.9 x 5.8 inches)
* Jumbo postcard: 110 x 160 mm (4.3 x 6.3 inches)
Keep in mind that these sizes are not set in stone, and some countries may have slightly different dimensions for their standard postcards. However, the above measurements are widely recognized as the common sizes for postcards.
Here's a rough estimate of the aspect ratio for each size:
* Standard: 1.6 (140 mm / 89 mm)
* Large: 1.7 (148 mm / 100 mm)
* Jumbo: 1.5 (160 mm / 110 mm)
The aspect ratio is the ratio of the longer side to the shorter side of the postcard. A higher aspect ratio means a more rectangular shape, while a lower aspect ratio means a more square or nearly square shape.
Postcard-sized images are typically designed to fit within a standard postcard dimensions of 3.5 x 5 inches (8.9 x 12.7 cm). To determine the ideal pixel size for a postcard, we need to consider the resolution and display density of modern devices.
Here's a general guideline:
* For low-resolution displays (e.g., older smartphones or feature phones): 640x480 pixels (~0.3 megapixels)
* For standard-resolution displays (e.g., most modern smartphones): 800x600 pixels (~0.5 megapixels)
* For high-resolution displays (e.g., newer smartphones, tablets, and some laptops): 1024x768 pixels (~1 megapixel) or higher
Keep in mind that these are general guidelines, and the actual pixel size required will depend on:
1. The intended use: If your postcard is meant to be viewed on a desktop computer or printed at high quality, you may want to opt for a larger pixel count.
2. The content: If your postcard features complex graphics, text, or high-contrast images, you may need a higher resolution to maintain clarity.
For a standard postcard size (3.5 x 5 inches), you can aim for:
* 768x1152 pixels (~0.9 megapixels) for low-to-medium detail content
* 1024x1536 pixels (~1.6 megapixels) or higher for high-detail content
Remember to consider the file size and compression when designing your postcard image, as this will affect the overall quality and download speed.
A common postcard size!
In centimeters, a 4x6 postcard is approximately:
* Length: 10.2 cm (4 inches x 25.4 mm/inch)
* Width: 15.24 cm (6 inches x 25.4 mm/inch)
So, the dimensions are roughly 10.2 cm long and 15.24 cm wide.
The USPS (United States Postal Service) has specific guidelines for the size of postcards. According to their regulations, a standard postcard must meet the following dimensions:
* Maximum length: 6 inches (15.24 cm)
* Maximum width: 4 inches (10.16 cm)
These dimensions are based on the size of the card, not including any additional features like a folded flap or an envelope enclosure.
Here are some key points to keep in mind when designing a postcard for USPS mailing:
1. Minimum size: The minimum size for a postcard is 3.5 inches (8.89 cm) by 5 inches (12.7 cm).
2. Standard size: The most common postcard size is 4 inches (10.16 cm) by 6 inches (15.24 cm).
3. No folding: Postcards must be flat and not foldable.
4. Weight: Postcards are typically lightweight, so make sure your design doesn't exceed the standard weight limit.
Remember to check with USPS or consult their official guidelines for any updates or specific requirements before sending your postcard in the mail.
The United States Postal Service (USPS) offers a discounted rate for postcards that meet specific size and weight requirements. Here are the details:
**Postcard Size:**
To qualify for the postcard rate, your card must be at least 3.5 inches (8.9 cm) tall and no more than 6 inches (15.2 cm) wide.
**Weight:**
Postcards can weigh up to 1 ounce (28 grams).
**Rate:**
As of January 2022, the USPS postcard rate is:
* Domestic (within the United States): $0.32
* International: $1.30
Keep in mind that these rates may be subject to change, so it's always a good idea to check the USPS website or consult with your local post office for the most up-to-date information.
**Additional Tips:**
* Postcards must have a rectangular shape and a gummed surface for adhering stamps.
* The front of the postcard (the side that will be mailed) can't contain any advertising, promotions, or commercial messages. Only personal messages and artwork are allowed.
* If your card exceeds the size or weight limits, you'll need to use a larger envelope and pay a higher rate.
Remember to check with USPS for specific requirements and rates if you're unsure about your postcard's size, weight, or contents.