True-to-Size Millimeter Sizing Comparison
Dr. Martens 2976 Chelsea vs Timberland PRO Radius Composite Safety Toe
Detailed size conversion chart, cavity measurements in millimeters, and crowd-sourced fit advice for choosing your perfect size.
Interactive Size Converter
Select what size you wear in the 2976 Chelsea to see your calculated size in the Radius Composite Safety Toe.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| 2976 Chelsea (US) | Internal Cavity | Radius Composite Safety Toe Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4.5 | 233 mm | US 4.5 | 100% | 0.0 mm |
| US 5 | 237 mm | US 5 | 100% | 0.0 mm |
| US 5.5 | 240 mm | US 5.5 | 100% | 0.0 mm |
| US 6 | 243 mm | US 6 | 100% | 0.0 mm |
| US 6.5 | 247 mm | US 6.5 | 100% | 0.0 mm |
| US 7 | 250 mm | US 7 | 100% | 0.0 mm |
| US 7.5 | 253 mm | US 7.5 | 100% | 0.0 mm |
| US 8 | 257 mm | US 8 | 100% | 0.0 mm |
| US 8.5 | 260 mm | US 8.5 | 100% | 0.0 mm |
| US 9 | 267 mm | US 9 | 100% | 0.0 mm |
| US 9.5 | 270 mm | US 9.5 | 100% | 0.0 mm |
| US 10 | 273 mm | US 10 | 100% | 0.0 mm |
| US 10.5 | 277 mm | US 10.5 | 100% | 0.0 mm |
| US 11 | 280 mm | US 11 | 100% | 0.0 mm |
Related Comparisons
Direct Rivalry2976 Chelsea vs Classic Short IIView Sizing ComparisonDirect Rivalry2976 Chelsea vs Classic Mini IIView Sizing ComparisonDirect RivalryTerrain H2O vs 2976 ChelseaView Sizing Comparisondr-martens Comparison1460 vs 2976 ChelseaView Sizing ComparisonDirect RivalryRadius Composite Safety Toe vs Classic Short IIView Sizing ComparisonDirect RivalryRadius Composite Safety Toe vs Classic Mini IIView Sizing Comparison
Frequently Asked Questions
How does the 2976 Chelsea size compare to the Radius Composite Safety Toe?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The 2976 Chelsea has an internal fit offset of -0.08mm compared to -0.08mm for the Radius Composite Safety Toe.
Do these shoes fit wide feet comfortably?
The 2976 Chelsea has a snug/narrow width profile, while the Radius Composite Safety Toe is snug/narrow.