1. What is GSM?

GSM (Grams Per Square Meter) is a metric measurement of the weight of paper, fabric, or other sheet materials. It represents the weight in grams of one square meter of the material.

2. How Does the Calculator Work?

The calculator uses the GSM formula:

Where:

• \( Weight \) — Mass of the material in grams
• \( Area \) — Area of the material in square millimeters

Explanation: The formula converts the area from mm² to m² (by dividing by 1,000,000) and then calculates the weight per square meter.

3. Importance of GSM Calculation

Details: GSM is crucial in industries like paper manufacturing, textiles, and packaging as it determines material quality, thickness, and durability.

4. Using the Calculator

Tips: Enter the weight in grams and area in square millimeters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why convert from mm² to m²?
A: GSM is defined as grams per square meter, so we need to convert the measured area to square meters for the standard measurement.

Q2: What are typical GSM values for paper?
A: Standard copy paper is about 80 gsm, while cardstock ranges from 120-300 gsm.

Q3: How accurate is this calculation?
A: The calculation is mathematically precise, but measurement accuracy depends on the precision of your weight and area measurements.

Q4: Can I use other units?
A: The calculator requires grams and mm², but you can convert other units to these before input.

Q5: What's the difference between GSM and basis weight?
A: Basis weight (in pounds) is a different measurement system used in some countries, while GSM is the metric standard.