Caliper Formula:
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The GSM to Caliper conversion calculates the thickness (caliper) of a material based on its grammage (GSM) and density. This is commonly used in paper, packaging, and textile industries to determine material thickness.
The calculator uses the following formula:
Where:
Explanation: The formula converts the weight per unit area to thickness by accounting for the material's density.
Details: Caliper thickness is crucial for quality control, product specifications, and determining material properties like stiffness and bulk.
Tips: Enter GSM in g/m² and density in g/cm³. Both values must be positive numbers. Common densities: paper ~0.8 g/cm³, cardboard ~0.69 g/cm³.
Q1: What is GSM?
A: GSM stands for grams per square meter, a measure of the weight (or grammage) of paper or fabric.
Q2: How accurate is this conversion?
A: The conversion is mathematically precise, but actual thickness may vary slightly due to material compressibility and manufacturing variations.
Q3: Why multiply density by 1000?
A: This converts g/cm³ to kg/m³ to maintain consistent units (1 g/cm³ = 1000 kg/m³).
Q4: Can this be used for all materials?
A: This works for homogeneous materials where density is consistent throughout. Not suitable for layered or composite materials.
Q5: How is caliper typically measured?
A: In practice, caliper is measured with micrometers or specialized thickness gauges under specific pressure conditions.