Paper Weight Calculator
Estimate the weight of a sheet or stack of paper from its size, GSM, and sheet count.
Use it for shipping, print planning, packaging, and paper sample comparison.
Calculated Result
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Run the calculation to see the weight.
Quick Answer
Multiply the sheet area by GSM to get the weight of one sheet, then multiply by the number of sheets for a stack weight.
How to Calculate Paper Weight
- Choose a preset paper size or use a custom width and height.
- Enter the paper GSM.
- Enter the number of sheets.
- Read the per-sheet weight and total stack weight.
Formula
Sheet weight (g) = area (m^2) x GSM
Stack weight = sheet weight x sheet count
Worked Examples
Example 1: A4 at 80 GSM weighs about 5.0 g per sheet.
Example 2: 500 sheets of A4 80 GSM paper weigh about 2.5 kg.
Example 3: Letter size 100 GSM paper weighs more than the same sheet count at 70 GSM.
How to Interpret Your Results
| Weight range | Meaning | Action |
|---|---|---|
| Light | Office paper or thin stock | Easy to mail and fold |
| Medium | General-purpose print stock | Common for brochures and reports |
| Heavy | Card stock or thick paper | Check printer and mailer limits |
Frequently Asked Questions
It is grams per square meter, a standard measure of paper density and weight.
Because a larger sheet contains more paper area, and more area means more weight at the same GSM.
Yes. Use the size unit selector and the calculator will convert the dimensions before applying the weight formula.
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References
- OmniCalculator reference page
- Paper weight is commonly expressed as GSM in print and packaging work.
- Last reviewed: March 2026.