Paper Weight Calculator
Calculate paper weight and sheet count from dimensions and GSM.
Understanding Paper Weight Calculator
Paper weight is calculated from sheet dimensions and GSM (grams per square meter). Standard A4 paper (210×297mm, 80 GSM) weighs about 5g per sheet.
$$Weight = \frac{L \times W \times GSM}{1,000,000}$$
How to use this calculator
- Enter the paper length and width in the same unit used by the calculator.
- Enter the GSM, which means grams per square meter.
- Choose whether you want the weight of one sheet or the total for a stack.
- Read the result, and use the step-by-step output to check the calculation.
The formula explained
The formula computes the weight of one sheet of paper from its length, width, and GSM. It multiplies the area by the paper density, then divides by ? No, by ?
- L = paper length
- W = paper width
- GSM = paper mass per square meter, in grams per square meter
Step by step method
- Find the sheet area by multiplying length and width.
- Multiply the area by the GSM.
- Divide by ? No, divide by ?
Frequently asked questions
How do I calculate paper weight from GSM and sheet size?+
Use Weight = (L × W × GSM) / 1,000,000, where L and W are the paper dimensions in millimeters. This gives the weight of one sheet in grams when you enter the sheet length, width, and paper GSM.
What does GSM mean in a paper weight calculator?+
GSM means grams per square meter, which tells you how heavy one square meter of the paper is. A higher GSM means thicker, heavier paper for the same sheet size.
Can this calculator find how many sheets are in a given paper weight?+
Yes, if you know the total paper weight and the weight of one sheet, you can divide the total weight by the weight per sheet to estimate sheet count. The calculator uses the sheet dimensions and GSM to work out the sheet weight first.
What happens if I enter inches instead of millimeters?+
The formula assumes dimensions are in millimeters, so entering inches without converting will give the wrong result. Convert inches to millimeters first, since 1 inch equals 25.4 mm.
What is the difference between paper weight, GSM, and thickness?+
Paper weight is the mass of a sheet or stack of sheets, while GSM is the mass per square meter. Thickness is a separate measurement, because two papers can have the same GSM but different thickness depending on the material and finish.
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