Paper Weight Conversion Chart: Understanding GSM

When it comes to printing, knowing the right paper weight is crucial for achieving high-quality results. Paper weight is measured in grams per square meter (GSM), which can be a bit confusing, especially with so many options available. In this article, we'll break down the different GSM weights and their typical uses, helping you make informed decisions for your print projects.

Heavy Ink Coverage: A Limitation

For simple copy jobs or those with less ink coverage, paper weights between 20gsm to 140gsm are suitable. However, heavy ink coverage might still show through at this weight. This is because the paper is not designed to handle high-ink coverage without compromising image quality.

Posters and Newspaper Printing

Paper weights ranging from 100gsm to 140gsm are ideal for printing posters. At this weight, you'll find that your prints have greater durability, making them perfect for outdoor use or in environments where they might be exposed to wear and tear. This is the same type of paper used for printing newspapers.

Copy Paper and Everyday Printing

For everyday printing needs, such as printing documents at home or a copy center, paper weights between 0gsm to 100gsm are suitable. You'll find that this weight is similar to standard copy paper, making it perfect for routine tasks.

Extremely Thin Papers

Papers with GSM weights ranging from 5gsm to 55gsm are considered extremely thin and delicate. These papers are best suited for special applications where a lightweight finish is desired.

Choosing the Right Paper Stock

When selecting a paper stock, knowing your desired GSM weight range will help you narrow down options. Additionally, consider factors such as page count, mailability, or shipping requirements when making your decision. It's also important to note that heavier papers don't always mean they're the best choice for every job.

Higher Quality Papers

Papers with higher GSM weights are often considered higher quality due to their durability and thickness, which allows images to pop on both sides. The calculation of GSM is simple: it's the weight of one square meter of stock in grams. Printers will typically refer to this when describing different paper qualities.

Understanding Text and Cover Stocks

Text stocks like 100lb Gloss Text are commonly used for brochures, while 80lb Uncoated Text is often used for letterheads. Cover stocks, such as 18pt Brown Kraft or 20pt Cotton, are perfect for business cards, flyers, or other marketing materials. The thickness of cover stocks is measured in points (pt), while text papers are measured in pounds (lb).

By understanding the different GSM weights and their typical uses, you'll be better equipped to make informed decisions about your print projects, ensuring high-quality results that meet your needs.

Paper weight conversion chart