Calculation of paper weight by density and number of sheets
Calculation of paper weight by density and number of sheets
The online paper weight calculator is an accurate tool for determining paper weight by weight, number of sheets and size. Simply enter the paper weight, number of sheets and format, and get the exact weight in grams or kilograms.
The paper weight calculator uses standard formulas to accurately calculate the weight of sheets of paper. The calculation is based on paper weight (gsm), sheet area and number of sheets. Formula: Weight = Sheet area (m²) × Density (g/m²) × Number of sheets. The calculator supports all standard paper sizes: A4, A3, A5, Letter, Legal and others.
Let's look at practical examples of calculating paper weight for various formats and densities:
Office paper 80 g/m², A4 format, 100 sheets
Входные данные:
Density: 80 g/m², Format: A4 (210×297 mm), Number of sheets: 100Расчёт:
Area A4: (210 × 297) / 1,000,000 = 0.06237 m²
Weight of one sheet: 0.06237 m² × 80 g/m² = 4.99 g
Total weight: 4.99g × 100 sheets = 499gРезультат:
Single sheet weight: 4.99 g, Total weight: 499 g (0.499 kg)
Формат:
Format A4
Standard office paper for printers and copiers
Cardboard density 200 g/m², A3 format, 50 sheets
Входные данные:
Density: 200 g/m², Format: A3 (297×420 mm), Number of sheets: 50Расчёт:
Area A3: (297 × 420) / 1,000,000 = 0.12474 m²
Weight of one sheet: 0.12474 m² × 200 g/m² = 24.95 g
Total weight: 24.95 g × 50 sheets = 1247.5 gРезультат:
Single sheet weight: 24.95 g, Total weight: 1247.5 g (1.248 kg)
Формат:
Format A3
Cardboard is used for packaging and creating durable products
Photo paper 150 g/m², A4 format, 20 sheets
Входные данные:
Density: 150 g/m², Format: A4 (210×297 mm), Number of sheets: 20Расчёт:
Area A4: 0.06237 m²
Weight of one sheet: 0.06237 m² × 150 g/m² = 9.36 g
Total weight: 9.36 g × 20 sheets = 187.2 gРезультат:
Single sheet weight: 9.36 g, Total weight: 187.2 g (0.187 kg)
Формат:
Format A4
Photo paper has a higher density for high-quality photo printing
Office paper 100 g/m², Letter size (216x279 mm), 500 sheets
Входные данные:
Density: 100 g/m², Format: Letter (216×279 mm), Number of sheets: 500Расчёт:
Letter Area: (216 × 279) / 1,000,000 = 0.060264 m²
Weight of one sheet: 0.060264 m² × 100 g/m² = 6.03 g
Total weight: 6.03g × 500 sheets = 3015gРезультат:
Single sheet weight: 6.03 g, Total weight: 3015 g (3.015 kg)
Формат:
Letter format
Letter format is common in the USA and Canada.
Thin paper 60 g/m², A5 format, 200 sheets
Входные данные:
Density: 60 g/m², Format: A5 (148×210 mm), Number of sheets: 200Расчёт:
Area A5: (148 × 210) / 1,000,000 = 0.03108 m²
Weight of one sheet: 0.03108 m² × 60 g/m² = 1.86 g
Total weight: 1.86g × 200 sheets = 372gРезультат:
Single sheet weight: 1.86 g, Total weight: 372 g (0.372 kg)
Формат:
Format A5
Thin paper is used for books and notepads
Very thick cardboard 300 g/m², A4 format, 10 sheets
Входные данные:
Density: 300 g/m², Format: A4 (210×297 mm), Number of sheets: 10Расчёт:
Area A4: 0.06237 m²
Weight of one sheet: 0.06237 m² × 300 g/m² = 18.71 g
Total weight: 18.71 g × 10 sheets = 187.1 gРезультат:
Single sheet weight: 18.71 g, Total weight: 187.1 g (0.187 kg)
Формат:
Format A4
Very thick cardboard is used for business cards and postcards
The calculator uses several methods to accurately calculate paper weight:
Calculation based on paper weight in g/m²
Calculation using sheet area and density
Different types of paper have different weights:
Standard Printing Paper
Thick paper for packaging
Special paper for photo printing
The paper weight calculator is used in various fields:
To get accurate results:
Стандартные значения плотности различных типов бумаги:
60-70 г/м²
80-100 г/м²
120-150 г/м²
150-250 г/м²
200-300 г/м²
45-60 г/м²
90-150 г/м²
120-180 г/м²
Площади листов различных форматов для расчёта веса:
To calculate the weight of paper by density, use the formula: Weight = Sheet area (m²) × Density (g/m²) × Number of sheets. Sheet area depends on the format: A4 = 0.06237 m², A3 = 0.12474 m², A5 = 0.03108 m². For example, for A4 (80 g/m², 100 sheets): 0.06237 × 80 × 100 = 499 g. In the calculator, simply enter the density, number of sheets and format - the calculation will be performed automatically.
To calculate the weight of one A4 sheet, multiply the area of the sheet (0.06237 m²) by the density in g/m². For example, 80 g/m² paper: 0.06237 × 80 = 4.99 g. 100 g/m² paper: 0.06237 × 100 = 6.24 g. 120 g/m² paper: 0.06237 × 120 = 7.48 g. The calculator automatically calculates the weight of one sheet. and total weight for the specified number of sheets.
To calculate the weight of a ream of A4 paper, use the formula: Ream weight = Area of A4 sheet (0.06237 m²) × Density (g/m²) × Number of sheets in a ream. A standard pack contains 500 sheets. For example, a pack of 80 g/m²: 0.06237 × 80 × 500 = 2494.8 g (≈2.5 kg). Pack of 100 g/m²: 0.06237 × 100 × 500 = 3118.5 g (≈3.12 kg). The calculator shows the exact weight for any number of sheets.
Paper density is usually indicated on the packaging in g/m² or gsm (grams per square meter). Standard values: office paper - 80-100 g/m², photo paper - 150-250 g/m², cardboard - 200-300 g/m², thin paper - 60-70 g/m². If the density is not indicated, you can determine it by thickness: the thicker the paper, the higher the density. The calculator provides standard density values from 60 to 300 g/m².
To calculate the weight of paper by format and number of sheets: 1) Determine the sheet area in m² (A4 = 0.06237 m², A3 = 0.12474 m², A5 = 0.03108 m², Letter = 0.060264 m²); 2) Find out the paper density in g/m²; 3) Use the formula: Weight = Area × Density × Number of sheets. The calculator automatically determines the area based on the selected format and calculates the weight.
One sheet of 80gsm A4 weighs 4.99 grams (approximately 5 grams). Calculation: area A4 = 0.06237 m², weight = 0.06237 × 80 = 4.99 g. This is standard office paper for printers and photocopiers. A pack of 500 sheets weighs approximately 2.5 kg.
To calculate the weight of printing paper, determine the number of sheets you plan to print, the paper size and its weight. For example, to print 1000 sheets of A4 100 g/m²: Weight = 0.06237 m² × 100 g/m² × 1000 = 6237 g (6.24 kg). The calculator will help you determine the exact weight of paper for your circulation and avoid errors when ordering.
To convert paper weight from grams to kilograms, divide the number of grams by 1000. For example, 2495 g = 2.495 kg, 5000 g = 5 kg. The calculator automatically displays weight in both grams and kilograms for convenience. Formula: Weight (kg) = Weight (g) / 1000.
To calculate the weight of cardboard, use the same formula as for paper: Weight = Sheet Area × Density × Number of Sheets. Cardboard has a higher density (usually 200-300 g/m²). For example, A4 sheet with a density of 250 g/m²: 0.06237 × 250 = 15.59 g. The calculator supports all standard cardboard densities and automatically calculates the weight.
At the same density, an A3 sheet weighs twice as much as an A4 sheet, since the area of A3 is twice as large. Area A4 = 0.06237 m², area A3 = 0.12474 m². For example, at 80 g/m²: A4 weighs 4.99 g, A3 weighs 9.98 g. The calculator shows the weight for all formats and allows you to compare them.
To calculate the weight of packaging paper, determine the total area of the packaging material, its density and multiply. For example, cardboard with a density of 200 g/m² and an area of 0.5 m² is used for packaging: Weight = 0.5 × 200 = 100 g. If you need several sheets, multiply by the quantity. The calculator helps you accurately determine the weight of packaging materials for logistics and transportation.
To calculate the weight of book paper, consider the number of pages (each page = 1 sheet), book format and paper weight. Book paper usually has a weight of 60-80 g/m². For example, an A5 book (0.03108 m²) on 300 pages with a density of 70 g/m²: 0.03108 × 70 × 300 = 652.68 g. The calculator automatically calculates the weight of the entire book.
To determine paper weight without a calculator, use the formula: Weight = Area (m²) × Weight (g/m²) × Number of sheets. Size area: A4 = 0.06237 m², A3 = 0.12474 m², A5 = 0.03108 m², Letter = 0.060264 m². Multiply the area by the density (usually indicated on the package) and the number of sheets. For accurate calculations, it is recommended to use an online calculator.
To calculate the weight of photo paper, take into account its high density (usually 150-250 g/m²) and format. For example, 20 sheets of A4 with a density of 200 g/m²: 0.06237 × 200 × 20 = 249.48 g. Photo paper is heavier than regular office paper due to the special coating. The calculator supports all standard photo paper weights and automatically calculates the weight for any number of sheets.
To calculate the weight of letter size paper, use a sheet area of 0.060264 m². Formula: Weight = 0.060264 m² × Density (g/m²) × Number of sheets. For example, 500 sheets of 80 g/m²: 0.060264 × 80 × 500 = 2410.56 g (2.41 kg). The Letter format is common in the USA and Canada and has dimensions of 216x279 mm. The calculator automatically calculates the weight for Letter size.
The weight of a pack of A4 paper depends on the density and number of sheets. A standard pack contains 500 sheets. At a density of 80 g/m²: 0.06237 × 80 × 500 = 2494.8 g (≈2.5 kg). At a density of 100 g/m²: 0.06237 × 100 × 500 = 3118.5 g (≈3.12 kg). At a density of 120 g/m²: 0.06237 × 120 × 500 = 3742.2 g (≈3.74 kg). The calculator shows the exact weight for any number of sheets and density.
To calculate the weight of paper for mailing, determine the number of sheets, format and weight. Postal services take weight into account when determining shipping costs. For example, a letter with 10 sheets of A4 with a density of 80 g/m²: 0.06237 × 80 × 10 = 49.9 g. The calculator will help you accurately determine the weight of the correspondence and choose the optimal delivery rate.
If you know the total square footage of the paper and the weight, use the formula: Weight = Area (m²) × Density (g/m²). For example, 1 m² of 100 g/m² paper weighs 100 g. 5 m² of 80 g/m² paper weighs 400 g. The calculator automatically calculates the weight based on the sheet area and number of sheets.
To calculate the weight of A5 paper, use a sheet area of 0.03108 m². Formula: Weight = 0.03108 m² × Density (g/m²) × Number of sheets. For example, 100 sheets of A5 with a density of 80 g/m²: 0.03108 × 80 × 100 = 248.64 g. The A5 format is half the size of A4, so at the same density it weighs half as much. The calculator supports A5 format.
To calculate the weight of paper in design and printing, use a calculator, indicating the sheet format, density and circulation (number of sheets). For example, to print 1000 A4 business cards (cut into 10 business cards each) on 250 g/m² cardboard: 0.06237 × 250 × 100 = 1559.25 g. The calculator helps to accurately determine the weight of materials for ordering and calculating the cost of printing.
To calculate the weight of paper by thickness, keep in mind that thickness is indirectly related to density: the thicker the paper, the higher the density usually is. However, for an accurate calculation, it is the density in g/m² that is needed, not the thickness. Density can be determined experimentally by weighing a sheet of known area. Or use standard values: thin paper 60-70 g/m², standard 80-100 g/m², thick paper 120-150 g/m², cardboard 200-300 g/m².
To calculate the weight of A3 paper, use a sheet area of 0.12474 m². Formula: Weight = 0.12474 m² × Density (g/m²) × Number of sheets. For example, 50 sheets of A3 100 g/m²: 0.12474 × 100 × 50 = 623.7 g. A3 is twice the size of A4, so weighs twice as much for the same weight. The calculator automatically calculates the weight for A3.
To calculate the weight of archival paper, consider the number of documents, the format and density of archival paper (usually 80-100 g/m², sometimes special archival paper with a density of 120 g/m² for durability). For example, an archive of 5000 A4 sheets with a density of 100 g/m²: 0.06237 × 100 × 5000 = 31185 g (31.19 kg). The calculator will help determine the weight of the archive for planning storage and transportation.
To calculate the weight of self-adhesive paper, keep in mind that it usually has a higher density (120-180 g/m²) due to the adhesive layer. For example, 100 sheets of A4 self-adhesive paper with a density of 150 g/m²: 0.06237 × 150 × 100 = 935.55 g. The adhesive layer adds 10-20% to the weight. The calculator calculates the weight of the base of self-adhesive paper; adjustments may be required for the exact weight with glue.
To calculate the weight of printing paper, determine the number of pages (sheets), book format and book paper weight (usually 60-80 g/m² for inside pages, 100-150 g/m² for cover). For example, an A5 book on 400 pages with a density of 70 g/m²: 0.03108 × 70 × 400 = 870.24 g. The calculator helps to calculate the weight of a book for planning circulation and transportation.
To calculate the weight of colored paper, use the same formula as for white paper: Weight = Area × Weight × Number of Sheets. The density of colored paper is usually the same as white paper (80-100 g/m²). Color pigments add minimal weight. For example, 100 sheets of A4 colored paper with a density of 90 g/m²: 0.06237 × 90 × 100 = 561.33 g. The calculator works the same for all types of paper.
To calculate the weight of notebook paper, determine the number of sheets, format and density. Notepads usually use paper with a density of 60-100 g/m². For example, an A5 notebook with 80 sheets of 80 g/m²: 0.03108 × 80 × 80 = 198.91 g. If the notebook has a hard cover, add its weight separately. The calculator calculates the weight of notepad paper.
To calculate the weight of paper for cards and postcards, use thick cardboard (200-300 g/m²). For example, 100 A4 postcards (cut into 4 postcards) 250 g/m²: 0.06237 × 250 × 100 = 1559.25 g. After cutting into 4 parts, each postcard will weigh approximately 3.9 g. The calculator helps determine the weight of the material for the production of cards and postcards.
To calculate the weight of paper for stickers, please note that stickers are usually printed on self-adhesive paper with a density of 120-180 g/m². For example, 500 sheets of A4 self-adhesive paper with a density of 150 g/m²: 0.06237 × 150 × 500 = 4677.75 g (4.68 kg). After cutting into individual stickers, each sticker will weigh less. The calculator calculates the weight of the material for the production of stickers.
To calculate the weight of paper for envelopes, use a weight of 80-120 g/m² depending on the type of envelope. Envelopes are usually made from a single sheet of paper. For example, a C4 format envelope (229 × 324 mm, area 0.074196 m²) with a density of 100 g/m²: 0.074196 × 100 = 7.42 g. For 100 envelopes: 7.42 × 100 = 742 g. The calculator will help you calculate the weight of the material for envelopes.