Side-by-Side Comparison
Weightlifting & Strength Standards
Olympic Bumper Plate Colors & Dimensions vs. Competition Kettlebells
Comparing 2 standards across 19 specifications. 19 key differences identified.
Comparing:
Olympic Bumper Plate Colors & Dimensions
Competition Kettlebells
Competition bumper plates are globally standardized by the International Weightlifting Federation (IWF) into an exact 450 mm (17.72 in) outer diameter and universal color-coded weight designations: Red (25 kg / 55 lb), Blue (20 kg / 45 lb), Yellow (15 kg / 33 lb), and Green (10 kg / 22 lb).
Competition kettlebells (Girevoy sport standards, regulated by IUKL and WKSF) feature a uniform outer physical size (280 mm total height, 210 mm spherical body diameter, and 33–35 mm handle diameter) across all weights from 8 kg to 48 kg, distinguished by standard color bands on the handle base.
Specification Comparison Table
19 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Standards
|
IWF (International Weightlifting Federation) / IPF / USAW Rules | IUKL / WKSF / IKFF (International Kettlebell and Fitness Federation) |
|
Standard Outer Diameter
|
450.0 mm ± 1.0 mm (17.72 in) across all competition bumper plate weights | — |
|
Center Collar Bore Diameter
|
50.4 mm to 50.8 mm (precision fit for 50 mm Olympic barbell sleeves) | — |
|
Red Plate (IWF 25 kg / US 55 lb)
|
Thickness: ~60–65 mm | Solid Red | Heaviest standard bumper plate | — |
|
Blue Plate (IWF 20 kg / US 45 lb)
|
Thickness: ~50–55 mm | Solid Blue | Universal benchmark weight | — |
|
Yellow Plate (IWF 15 kg / US 35 lb)
|
Thickness: ~40–45 mm | Solid Yellow | — |
|
Green Plate (IWF 10 kg / US 25 lb)
|
Thickness: ~30–35 mm | Solid Green | Minimum diameter plate safe to drop alone | — |
|
Change Plate Colors
|
5 kg (White), 2.5 kg (Red), 2.0 kg (Blue), 1.5 kg (Yellow), 1.0 kg (Green), 0.5 kg (White) | — |
|
Uniform External Dimensions
|
— | Total Height: 280 mm (11.0") | Sphere Diameter: 210 mm (8.3") | Base Diameter: 140 mm (5.5") |
|
Handle Diameter
|
— | 33.0 mm (1.30 in) Competition Standard (35 mm on some training models) |
|
Handle Window Height
|
— | 55 mm to 60 mm (clearance between bottom of handle and top of sphere) |
|
Construction Material
|
— | Single-piece cast steel with internal hollow cavity (avoids lead fillers) |
|
8 kg (18 lbs) Color
|
— | Pink band / body |
|
12 kg (26 lbs) Color
|
— | Blue band / body |
|
16 kg (35 lbs / 1 Pood)
|
— | Yellow band / body (Russian historical 'Pood' standard) |
|
20 kg (44 lbs) Color
|
— | Purple band / body |
|
24 kg (53 lbs / 1.5 Pood)
|
— | Green band / body |
|
28 kg (62 lbs) Color
|
— | Orange band / body |
|
32 kg (70 lbs / 2 Pood)
|
— | Red band / body |