> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.teeinblue.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# A Guide To Understand DPI

# What is DPI?

**DPI**, or Dots Per Inch, is the number of dots that can be placed in a line across one inch. It is used to measure the resolution of an image both on screen and in printing. 

# How DPI affects print file quality?

The higher the DPI, the sharper the image, the better the print file quality:

* **A higher resolution** image provides the printer/printing services more information and **produces better designs**. 

* In contrast, a **lower DPI** will produce an image with **fewer dots in printing**. No matter how innovative the printer is, a low-resolution image doesn’t provide enough raw data to produce high-quality images. The ink will spread on the page, making the edges look fuzzy. 

![](https://storage.crisp.chat/users/helpdesk/website/6085dc2a7293d800/image_7mt0ne.png)

# How to convert Print Size to pixels with DPI?

Usually, in the print file guide, the providers will list the print size in inch/cm/mm. So the purpose of **converting these dimensions into pixels** is to help you **set the exact print-area size in teeinblue app**. This print-area size is necessary for the provider to fulfill your orders.

| **Formula:** Dimension in inch x DPI= Pixel (of the print file)
*Or you can use this website: [pixelcalculator.com](https://pixelcalculator.com/en) to convert in/mm/cm to pixel with different DPI.*

*For example*: The print-area instructed by [Printful](https://www.printful.com/custom/mens/t-shirts/unisex-jersey-t-shirt-american-apparel-2001#guidelines) is **12" x 16"**, and requires **300 DPI** print file quality ➡ The print-area size to fill in teeinblue will be **3600 x 4800px** (width = 12" x 300 dpi = 3600px; height= 16" x 300 dpi = 4800px).

![](https://storage.crisp.chat/users/helpdesk/website/6085dc2a7293d800/image_syllej.png)

||| You need to find **the correct DPI for each product** or else the incorrect DPI will convert to the incorrect size.
*For example*: If you convert a dimension of 12"x16" with 72dpi, the printarea size will be only 864x1152px. This is smaller than the required size of Printful

---

##### The required DPI by some providers (Updated on Mar 11th, 2021):

| Product and correspondent info will be written following this format: ++ **Products** - DPI - Original size - **Converted size** ++

1. [Dreamship](https://app.dreamship.com/app/catalog/)
* **Standard T-shirt** - 300 DPI - 13.50 x 15.50in - **4050 x 4650px**
* **11oz White Mug** - 300 DPI - 8in x 3.25in - **2400 x 975px**

2. [CustomCat](https://customcat.com/guides/resources/artwork-guidelines/)
* **G240 LS Ultra Cotton T-shirt** - 300 DPI - 9.5in x 10.9in - **2850 x 3270px**
* **XP8434 11oz White Mug** - 300 DPI - 230 x 97mm - **2717 x 1146**

3. [Printful](https://www.printful.com/custom-products)
* **2001 Unisex Fine Jersey Short Sleeve T-shirt** - 300 DPI - 12 x 16in - **3600 x 4800px**
* **11 oz White Glossy Mug** - 300 DPI - 9 x 3.5in - **2700 x 1050px**

4. [Picanova](https://www.picanova.com/format/#photo-gifts)
* **Magic Mug** - at least 75 DPI - 4.7 x 3.6in - **350 x 250 px**

|| **300 DPI** is considered as a high resolution and is used by almost all providers

>> _Read more:_ [Where to find printarea guidelines of each provider?](/en/article/where-to-find-printarea-guidelines-of-providers-9dkwfl/)