True-to-Size Millimeter Sizing Comparison

On Cloud 6 vs On Cloudtilt

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

Shoe Awomen
On Cloud 6
4.0(384 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full Cloud 6 Breakdown
Shoe Bwomen
On Cloudtilt
4.3(303 reviews)
Fit TendencyTrue to Size
Width ProfileStandard (Medium)
View Full Cloudtilt Breakdown
Fit Verdict

True to Size Comparison

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

Length Delta-0.04 mm
Width Delta-0.21 mm

Interactive Size Converter

Select what size you wear in the Cloud 6 to see your calculated size in the Cloudtilt.

Recommended Size in On Cloudtilt
EU 42100% Match

Internal shoe cavity difference: -0.0 mm (snugger)

Complete Size Conversion Matrix

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

Cloud 6 (US)Internal CavityCloudtilt EquivalentMatch AccuracyFit Difference
EU 36240 mmEU 36100%-0.0 mm
EU 36.5243 mmEU 36.5100%-0.0 mm
EU 37247 mmEU 37100%-0.0 mm
EU 37.5250 mmEU 37.5100%-0.0 mm
EU 38253 mmEU 38100%-0.0 mm
EU 38.5257 mmEU 38.5100%-0.0 mm
EU 39260 mmEU 39100%-0.0 mm
EU 40267 mmEU 40100%-0.0 mm
EU 40.5270 mmEU 40.5100%-0.0 mm
EU 41273 mmEU 41100%-0.0 mm
EU 42280 mmEU 42100%-0.0 mm
EU 42.5283 mmEU 42.5100%-0.0 mm
EU 43287 mmEU 43100%-0.0 mm
EU 44293 mmEU 44100%-0.0 mm
EU 44.5297 mmEU 44.5100%-0.0 mm
EU 45300 mmEU 45100%-0.0 mm
EU 46307 mmEU 46100%-0.0 mm
EU 47313 mmEU 47100%-0.0 mm
EU 47.5316 mmEU 47.5100%-0.0 mm
EU 48319 mmEU 48100%-0.0 mm

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Frequently Asked Questions

How does the Cloud 6 size compare to the Cloudtilt?

Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Cloud 6 has an internal fit offset of -0.2mm compared to -0.24mm for the Cloudtilt.

Do these shoes fit wide feet comfortably?

The Cloud 6 has a roomy/wide width profile, while the Cloudtilt is snug/narrow.