Size Guides

adidas Bottomsadidas Sports Bras & Topsadidas Trainersadidas X Stella McCartney Bottomsadidas X Stella McCartney Sports Bras & Topsadidas X Stella McCartney TrainersAlo Yoga BottomsAlo Yoga Sports Bras & TopsBeyond YogaFP MovementGirlfriend Collective BottomsGirlfriend Collective Sports Bras & TopsGoodmove BottomsGoodmove Sports BrasGoodmove TopsHOFFHOKALilybodMerrell ShoesNike bottomsNike SocksNike Sports Bras & TopsNike TrainersOn Women's ApparelOn Women's TrainersP.E NationPointe StudioPUMA BottomsPUMA Tops and BrasPUMA TrainersReebokReebok TrainersSpiritual GangsterStance SocksSweaty Betty BottomsSweaty Betty Tops & BrasThe UpsideUnder Armour ApparelUnder Armour TrainersVarley Sports Bras & TopsVarley BottomsVejaVuori BottomsVuori Sports Bras & TopsYMO
adidas Bottomsadidas Sports Bras & Topsadidas Trainersadidas X Stella McCartney Bottomsadidas X Stella McCartney Sports Bras & Topsadidas X Stella McCartney TrainersAlo Yoga BottomsAlo Yoga Sports Bras & TopsBeyond YogaFP MovementGirlfriend Collective BottomsGirlfriend Collective Sports Bras & TopsGoodmove BottomsGoodmove Sports BrasGoodmove TopsHOFFHOKALilybodMerrell ShoesNike bottomsNike SocksNike Sports Bras & TopsNike TrainersOn Women's ApparelOn Women's TrainersP.E NationPointe StudioPUMA BottomsPUMA Tops and BrasPUMA TrainersReebokReebok TrainersSpiritual GangsterStance SocksSweaty Betty BottomsSweaty Betty Tops & BrasThe UpsideUnder Armour ApparelUnder Armour TrainersVarley Sports Bras & TopsVarley BottomsVejaVuori BottomsVuori Sports Bras & TopsYMO

On Running Women's Trainers Size Guide

If your feet are normal to narrow, your usual running-shoe size will suit most models. If your feet are wide or you are running at a high-volume, you may prefer a roomier fit by going half a size up.

    Shop On Running Women's Trainers

    UK EU US JPN (cm)
    4 37 6 23
    4.5 37.5 6.5 23.5
    5 38 7 24
    5.5 38.5 7.5 24.5
    6 39 8 25
    6.5 40 8.5 25.5
    7 40.5 9 26
    7.5 41 9.5 26.5
    8 42 10 27

    Need further assistance?

    The Sports Edit size recommendation:

    For On Running size recommendations by style, please see above.

    Not sure which size to choose?

    If you have any questions or need help deciding, that’s what we’re here for! Please contact our customer service team who would be happy to assist - email us [email protected] .