Basis Weight Calculator:
Enter the values of basis area, BA(ft2) and weight per area, WPA(lbs/ft2) to determine the value of Basis weight, BW(lbs).
Basis Weight Formula:
Basis weight is a crucial concept in the physics of materials, particularly in the paper, printing, and packaging industries. It defines the weight of a given area of a material, typically expressed as pounds per ream or grams per square meter.
This measurement provides insight into the material’s thickness, strength, and density. The basis weight of paper, for example, is calculated based on the weight of a specific quantity of sheets, usually 500 sheets per ream, and the area of those sheets.
In essence, basis weight reflects the amount of material present in a given area, influencing its mechanical properties. A higher basis weight indicates a thicker, denser material, while a lower basis weight signifies a lighter, thinner material.
Basis weight, BW(lbs) in pounds is calculated by the product of basis area, BA(ft2) in feet square and weight per area, WPA(lbs/ft2) in pounds per square feet.
Basis weight, BW(lbs) = BA(ft2) * WPA(lbs/ft2)
BW(lbs) = basis weight in pounds, lbs.
BA(ft2) = basis area in square feet, ft2.
WPA(lbs/ft2) = weight per area in pounds per square feet, lbs/ft2.
Basis Weight Calculation:
1. A ream of paper has a basis area of 2000 square feet and a weight per area of 0.01 pounds per square foot. Calculate the basis weight of the paper.
Given: BA(ft2) = 2000ft2, WPA(lbs/ft2) = 0.01lbs/ft2.
Basis weight, BW(lbs) = BA(ft2) * WPA(lbs/ft2)
BW(lbs) = 2000 * 0.01
BW(lbs) = 20lbs.
2. A ream of paper weighs 30 pounds, and the basis area is 1500 square feet. Calculate the weight per unit area.
Given: BA(ft2) = 1500ft2, BW(lbs) = 30lbs.
Basis weight, BW(lbs) = BA(ft2) * WPA(lbs/ft2)
WPA(lbs/ft2) = BW(lbs) / BA(ft2)
WPA(lbs/ft2) = 30 / 1500
WPA(lbs/ft2) = 0.02lbs/ft2.