True-to-Size Millimeter Sizing Comparison

Jordan 4Rm vs Jordan AJ1 Mid

Detailed size conversion chart, cavity measurements in millimeters, and crowd-sourced fit advice for choosing your perfect size.

Shoe Amen
Jordan 4Rm
4.6(203 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full 4Rm Breakdown
Shoe Bmen
Jordan AJ1 Mid
4.7(292 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full AJ1 Mid Breakdown
Fit Verdict

True to Size Comparison

Both shoes share a very similar length profile. We recommend ordering your standard size in both.

Length Delta0 mm
Width DeltaIdentical

Interactive Size Converter

Select what size you wear in the 4Rm to see your calculated size in the AJ1 Mid.

Recommended Size in Jordan AJ1 Mid
US 10.5100% Match

Internal shoe cavity difference: 0.0 mm (snugger)

Complete Size Conversion Matrix

Direct millimeter-calibrated mapping comparing all available sizes between both shoes.

4Rm (US)Internal CavityAJ1 Mid EquivalentMatch AccuracyFit Difference
US 7267 mmUS 7100%0.0 mm
US 7.5270 mmUS 7.5100%0.0 mm
US 8273 mmUS 8100%0.0 mm
US 8.5277 mmUS 8.5100%0.0 mm
US 9280 mmUS 9100%0.0 mm
US 9.5283 mmUS 9.5100%0.0 mm
US 10287 mmUS 10100%0.0 mm
US 10.5290 mmUS 10.5100%0.0 mm
US 11293 mmUS 11100%0.0 mm
US 11.5297 mmUS 11.5100%0.0 mm
US 12300 mmUS 12100%0.0 mm
US 12.5303 mmUS 12.5100%0.0 mm
US 13307 mmUS 13100%0.0 mm
US 14313 mmUS 14100%0.0 mm

Related Comparisons

jordan Comparison1 Mid vs 4RmView Sizing Comparisonjordan Comparison4Rm vs Spizike LowView Sizing Comparisonjordan Comparison1 Mid vs AJ1 MidView Sizing Comparisonjordan ComparisonAJ1 Mid vs Spizike LowView Sizing Comparison

Frequently Asked Questions

How does the 4Rm size compare to the AJ1 Mid?

Both shoes share a very similar length profile. We recommend ordering your standard size in both. The 4Rm has an internal fit offset of 0mm compared to 0mm for the AJ1 Mid.

Do these shoes fit wide feet comfortably?

The 4Rm has a standard medium width profile, while the AJ1 Mid is standard medium.