Should I size up in the Brooks Ghost 16 for thick socks or break-in?

Break-in: None. Thick socks add volume — try the sock you will wear with the usual size advice before jumping a full size. See the thick socks & boot break-in guides.

How do women’s sizes work for the Brooks Ghost 16?

Open Women’s sizing for this model at /womens/brooks/ghost-16/ for the brand’s men’s↔women’s gap plus this model’s fit offset. Do not assume every brand uses a 1.5 gap.

How does the Brooks Ghost 16 compare to the Glycerin 21?

Same brand, different last. Ghost 16: True to Size — True to size — use Brooks widths if you need them. Glycerin 21: true to size — True to size. Open /brooks/glycerin-21/ or a model compare when available.

Brooks

Ghost 16

Ghost 16 sizing: true to size — pick the width

Brooks Ghost 16 typically fits true to size as a high-volume neutral daily trainer. Use B/D/2E (and extra-wide) options instead of oversi…

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True to Size True to size — use Brooks widths if you need them

VerifiedLast reviewed 2026-08-12

Runs smallTrue to sizeRuns big

Length usually matches a typical street size for this category.

Width note: High-volume neutral daily trainer; B/D/2E (and more) width options on many SKUs

What size should you buy?

Your usual size

Interactive suggestion based on this model’s fit offset (+0 US). Always confirm with a retailer return policy.

Brand / model converter · Compare brands · Guides

Measured / size chart (cm)

Numbers only when sourced. Empty fields stay blank — we do not invent mm.

Internal length: 27.0 cm (269.7 mm)
Forefoot width: 96.1 mm
Toebox width: 72.1 mm
Reference size: US_M9

Lab measurement · Source: RunRepeat lab · Updated: 2026-08-13

Lab cut at US men's 9 (running last).

Know your foot length? Open the cm → size converter.

Brooks size chart (foot-length cm)
US M	UK	EU	cm
6	5.5	38.5	23.5
6.5	6	39	24
7	6.5	40	24.5
7.5	7	40.5	25
8	7.5	41	25.4
8.5	8	42	25.9
9	8.5	42.5	26.2
9.5	9	43	26.7
10	9.5	44	27.1
10.5	10	44.5	27.5
11	10.5	45	27.9
11.5	11	45.5	28.4
12	11.5	46	28.8
13	12.5	47.5	29.7

Chart cm is approximate foot length for label matching — not a lab internal cut. Use the cm converter to map foot length across brands.

Fit scenarios

Width: Length and width are separate — see wide feet / narrow fit.

Width: High-volume neutral daily trainer; B/D/2E (and more) width options on many SKUs
Break-in: None

Summary

Brooks Ghost 16 typically fits true to size as a high-volume neutral daily trainer. Use B/D/2E (and extra-wide) options instead of oversizing length. Leave a thumb’s width of toe room for running; some testers find the 16 a touch snugger than older Ghosts.

Sources: RunRepeat Ghost 16 (TTS, 2313 owner votes) · WearTesters Ghost 16 (TTS length; use Wide if true wide) · SoleAwesome Ghost 16 (TTS; half up between sizes for long-run swell) · methodology

Women’s sizing

Brooks uses a 1.5-size women’s→men’s US gap (not always 1.5). Convert your women’s US size with this model’s fit offset built in.

Women’s size in Ghost 16 · All brands

Fit depth guide

Brooks Ghost 16 is built as a reliable daily trainer with a forgiving upper volume for many runners. Most people who already wear Brooks (or similar road shoes) can start true to size.

Width matters more than guessing length: if you need room, pick the correct Brooks width letter rather than going a full size long and losing heel lockdown.

Versus Bondi: Bondi is often higher stack / max-cushion; Ghost stays the TTS daily reference. Thick socks or orthotics may still want half up or a wider SKU — check volume, not just length labels.

Fit reports vary by foot shape, socks, and colorway. Confidence on this row is high — use the on-page fit survey or feedback with sources; we do not invent crowd percentages.

What size did you take?

Anonymous fit check for Brooks Ghost 16. Helps future readers — we never invent crowd stats.

Community results stay private until 25 responses for this page — no fake percentages.

Prefer email? Fit feedback.

FAQ

Does the Brooks Ghost 16 run big or small?: True to Size. True to size — use Brooks widths if you need them Brooks Ghost 16 typically fits true to size as a high-volume neutral daily trainer. Use B/D/2E (and extra-wide) options instead of oversizing length. Leave a thumb’s width of toe room for running; some testers find the 16 a touch snugger than older Ghosts.
What size should I buy in the Brooks Ghost 16?: True to size — use Brooks widths if you need them
Should I size up in the Brooks Ghost 16 for thick socks or break-in?: Break-in: None. Thick socks add volume — try the sock you will wear with the usual size advice before jumping a full size. See the thick socks & boot break-in guides.
How do women’s sizes work for the Brooks Ghost 16?: Open Women’s sizing for this model at /womens/brooks/ghost-16/ for the brand’s men’s↔women’s gap plus this model’s fit offset. Do not assume every brand uses a 1.5 gap.
How does the Brooks Ghost 16 compare to the Glycerin 21?: Same brand, different last. Ghost 16: True to Size — True to size — use Brooks widths if you need them. Glycerin 21: true to size — True to size. Open /brooks/glycerin-21/ or a model compare when available.

Generic US / UK / EU / cm reference

Secondary Mondopoint-style table. Prefer the brand chart in Measured / size chart (cm) when converting. Primary system: US_M.

US	UK	EU	cm
6	5.5	39	24.0
6.5	6	39.5	24.5
7	6.5	40	25.0
7.5	7	40.5	25.5
8	7.5	41	26.0
8.5	8	42	26.5
9	8.5	42.5	27.0
9.5	9	43	27.5
10	9.5	44	28.0
10.5	10	44.5	28.5
11	10.5	45	29.0
11.5	11	45.5	29.5
12	11.5	46	30.0
13	12.5	47.5	31.0

Where to buy

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