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Old Navy Size Chart & Fit Guide

Runs slightly big

Runs Big

Old Navy uses vanity sizing — their sizes run about half a size to one full size bigger than standard. If you wear M elsewhere, you might be a S at Old Navy. Great extended size range.

Size down from other brands. Good size range.

Generous vanity sizing.

SizeBust/ChestWaist
XS (0-2)33–35″25–27″
S (4-6)35–37.5″27–29.5″
M (8-10)37.5–40″29.5–32″
L (12-14)40–43″32–35″
XL (16-18)43–46.5″35–38.5″
SizeBust/ChestWaistHip
0-2 (XS)25–27″35–37″
4-6 (S)27–29.5″37–39.5″
8-10 (M)29.5–32″39.5–42″
12-14 (L)32–35″42–45″
16-18 (XL)35–38.5″45–48.5″
SizeBust/ChestWaist
S35–38″29–32″
M38–41″32–35″
L41–44″35–38″
XL44–48″38–43″
SizeBust/ChestWaistHip
30 (S)29–31″36–38″
32-34 (M)32–35″38–41″
36-38 (L)36–38″42–44″

Old Navy Sizing FAQ

Does Old Navy run big?
Yes, Old Navy uses vanity sizing that runs about half to one size big. If you're a true Medium, you may want a Small at Old Navy for a standard fit.
Should I size down at Old Navy?
Usually yes, by one size. This is especially true for women's tops and dresses. Jeans are slightly closer to true to size.
How does Old Navy compare to Gap?
Both are owned by Gap Inc., but Old Navy runs more generous. A Gap Medium often corresponds to an Old Navy Small.

Not sure which Old Navy size?

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