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Size Guide

Nike Size Guide

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Quick verdict

Yes — Nike runs about half a size small in footwear, especially in running shoes and Air Force 1s. Most people should size up half a size from their measured size. Apparel runs athletic and slim: if you're between sizes or prefer a relaxed fit, size up.

Size conversion charts

Every chart below is drawn from Nike's published size charts: the women's tops chart and the men's tops chart, captured August 2026. Fit still varies between styles, so check the size chart on the product page before you order.

Nike women’s tops (regular)

SizeBustWaistHip
XXS27.5–29.5"21.25–23.5"30.5–33"
XS29.5–32.5"23.5–26"33–35.5"
S32.5–35.5"26–29"35.5–38.5"
M35.5–38"29–31.5"38.5–41"
L38–41"31.5–34.5"41–44"
XL41–44.5"34.5–38.5"44–47"
XXL44.5–48.5"38.5–42.5"47–50"

Tall women's tops fit 5'8"–6' (173–183 cm) and run 1.75" (4.5 cm) longer in the body, with sleeves adjusted by silhouette, on select styles only.

Nike women’s tops (plus)

SizeBustWaistHip
0X44–47"40–43"48–51"
1X47–49.5"43–45.5"51–54"
2X49.5–52"45.5–49"54–57"
3X52–55"49–53"57–61"
4X55–58"53–57"61–65"

A separate chart, not a continuation of the regular one, and the two overlap at the boundary: XXL bust runs 44.5–48.5" while 0X runs 44–47", so a 46" bust is both an XXL and a 0X in Nike's own published data. Plus sizes map US 16W–32W across 0X–4X.

Nike women’s: international conversion (Nike’s own)

SizeXXSXSSMLXLXXL
US00–24–68–1012–1416–1820–22
UK24–68–1012–1416–1820–2224–26
EU3032–3436–3840–4244–4648–5052–54
FR3234–3638–4042–4446–4850–5254–56
IT3436–3840–4244–4648–5052–5456–58
KR60657075808590

Nike men’s tops

SizeChestWaistHip
XXS28.1–31.5"22.5–25.5"28.5–31.5"
XS31.5–35"25.5–29"31.5–35"
S35–37.5"29–32"35–37.5"
M37.5–41"32–35"37.5–41"
L41–44"35–38"41–44"
XL44–48.5"38–43"44–47"
XXL48.5–53.5"43–47.5"47–50.5"
3XL53.5–58"47.5–52.5"50.5–53.5"
4XL58–63"52.5–57"53.5–58.5"

Nike’s own chart lists hip equal to chest at XS through L, diverging only from XL upward; that is how Nike publishes it, not a transcription error. Tall sizes (S through 4XL, select styles) run 1.75" longer in the body with sleeves adjusted by silhouette; Tall bottoms add 2" of inseam and 0.5" of rise.

How to choose your size at Nike

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