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Weight plate
A weight plate is a flat, heavy object, usually made of cast iron, that is used in combination with barbells or dumbbells to produce a bar with a desired total weight for the purpose of physical exercise.
Two general categories exist: "standard" plates, which have a center hole of approximately 25 mm (one inch), and "Olympic" plates, meant to fit on the 50 mm (two inches) sleeves of Olympic barbells. Standard plates are usually paired with adjustable dumbbells and Olympic plates with full-size barbells, although standard barbells and Olympic dumbbells exist.
Weight plates may incorporate holes for ease of carrying (called "grip plates") or be solid discs (especially those used for competition). Non-competition plates often have variable diameters and widths, such as on the adjustable dumbbells pictured right, with heavier plates generally being larger in diameter, thickness, or both. Weight plates are typically round, although 12-sided and other polygonal varieties exist. Most plates are coated with enamel paint or hammertone to resist corrosion; more expensive varieties may be coated with chrome, rubber, or plastic.
Plates are available in a range of weights. Common Olympic plate (50 mm center hole) denominations are in 1.25, 2.5, 5, 10, 15, 20, and 25 kg sizes, or 2.5, 5, 10, 25, 35, and 45 lbs, with 0.25, 0.5, and 50 kg, or 1.25 and 100 lb discs less commonly seen.
Standard plates (25 mm center hole) are commonly available in 1.25, 2.5, 5, 10, 15, and 20 kg, or 2.5, 5, 10, 25, 35 and 50 lb where pound denominated plates are used. Less commonly seen are plates of 0.5, 1.4, 7.5, and 25 kg, or 1.25, 3, 7.5, 12.5, 20, and 100 lbs.
Bumper plates are commonly available in 5, 10, 15, 20, and 25 kg, or 10, 15, 25, 35, 45, and 55 lb in pound-denominated sets.
Low-cost plates can vary widely from their marked weight. A 2% or 3% variation is not uncommon, with plates from some manufacturers frequently being 10% or more over or under (a 45-pound plate can weigh as little as 40 pounds, or as much as 50). Tom Lincir, founder of the Ivanko Barbell Company, has encountered 45-pound (20.4 kg) plates weighing as little as 38 pounds (17.2 kg), or as much as 59 pounds (26.8 kg).
Plates can be weighed, and the equipment marked (using a paint pen or other permanent marker) with the true weight.
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Weight plate AI simulator
(@Weight plate_simulator)
Weight plate
A weight plate is a flat, heavy object, usually made of cast iron, that is used in combination with barbells or dumbbells to produce a bar with a desired total weight for the purpose of physical exercise.
Two general categories exist: "standard" plates, which have a center hole of approximately 25 mm (one inch), and "Olympic" plates, meant to fit on the 50 mm (two inches) sleeves of Olympic barbells. Standard plates are usually paired with adjustable dumbbells and Olympic plates with full-size barbells, although standard barbells and Olympic dumbbells exist.
Weight plates may incorporate holes for ease of carrying (called "grip plates") or be solid discs (especially those used for competition). Non-competition plates often have variable diameters and widths, such as on the adjustable dumbbells pictured right, with heavier plates generally being larger in diameter, thickness, or both. Weight plates are typically round, although 12-sided and other polygonal varieties exist. Most plates are coated with enamel paint or hammertone to resist corrosion; more expensive varieties may be coated with chrome, rubber, or plastic.
Plates are available in a range of weights. Common Olympic plate (50 mm center hole) denominations are in 1.25, 2.5, 5, 10, 15, 20, and 25 kg sizes, or 2.5, 5, 10, 25, 35, and 45 lbs, with 0.25, 0.5, and 50 kg, or 1.25 and 100 lb discs less commonly seen.
Standard plates (25 mm center hole) are commonly available in 1.25, 2.5, 5, 10, 15, and 20 kg, or 2.5, 5, 10, 25, 35 and 50 lb where pound denominated plates are used. Less commonly seen are plates of 0.5, 1.4, 7.5, and 25 kg, or 1.25, 3, 7.5, 12.5, 20, and 100 lbs.
Bumper plates are commonly available in 5, 10, 15, 20, and 25 kg, or 10, 15, 25, 35, 45, and 55 lb in pound-denominated sets.
Low-cost plates can vary widely from their marked weight. A 2% or 3% variation is not uncommon, with plates from some manufacturers frequently being 10% or more over or under (a 45-pound plate can weigh as little as 40 pounds, or as much as 50). Tom Lincir, founder of the Ivanko Barbell Company, has encountered 45-pound (20.4 kg) plates weighing as little as 38 pounds (17.2 kg), or as much as 59 pounds (26.8 kg).
Plates can be weighed, and the equipment marked (using a paint pen or other permanent marker) with the true weight.