Gap Size Chart
Gap size guide: men’s, women’s, kids’ and baby charts in inches and cm with UK and EU conversions. Gap runs true to size; find your jean size by waist.
Last updated June 2026 · compiled from the official Gap size guide · reviewed by the Sizely team
Find your Gap size
Measure your body (not a garment) with a soft tape, snug but not tight.
Enter your measurements to see your Gap size.
Fit tip: Gap generally fits true to size with some vanity sizing, but cuts vary by style, so check the specific item's fit.
How to measure
- Chest / bust: around the fullest part, keeping the tape level.
- Waist: around the narrowest part, usually at the belly button.
- Hips: around the widest part of your seat.
- Foot length: stand on paper, mark from heel to longest toe, then measure the line.
Use a soft tape over light clothing, snug but not tight.
Gap size guide at a glance#
Gap runs true to size and uses letter sizes: men’s XS to XXXL, women’s XXS to XXL in tops (US 000 to 22) and XXXS to XL in bottoms, plus kids’ and baby lines. A men’s M fits a 39 to 41 in (99-104 cm) chest. A women’s M (US 8-10) fits a 36.25 to 37.25 in (92-94.5 cm) bust, and in bottoms a 29.5 to 30.5 in (75-77.5 cm) waist. Each chart includes US, EU and UK columns in inches and centimeters.
- Jeans: your jean number sits close to your waist in inches. A 27.5 to 28.5 in (70-72.5 cm) waist is an S, 29.5 to 30.5 in (75-77.5 cm) an M, 32 to 33.5 in (81.5-85 cm) an L.
- Hoodies and sweatshirts follow the tops charts. Take your usual size, or one up if you sit between sizes.
- UK shoppers: every chart has a UK column. A men’s M is a UK 40 and a women’s M a UK 12-14.
Gap keeps sizing consistent across lines, so once you know your measurements the same size works for tees, hoodies and outerwear.
Men’s Gap size charts#
Men’s tops and outerwear size chart#
Tees, button-downs, hoodies and jackets follow this chart. Measure your chest at the widest point.
| US | EU | UK | Chest (in) | Chest (cm) | Neck (in) | Neck (cm) | Sleeve (in) | Sleeve (cm) |
|---|---|---|---|---|---|---|---|---|
| XS | 46 | 36 | 35–36" | 89–91 cm | 13.5–14" | 34–36 cm | 31–32" | 79–81 cm |
| S | 48 | 38 | 37–38" | 94–97 cm | 14–14.5" | 36–37 cm | 32–33" | 81–84 cm |
| M | 50 | 40 | 39–41" | 99–104 cm | 15–15.5" | 38–39 cm | 33–34" | 84–86 cm |
| L | 53 | 43 | 42–44" | 107–112 cm | 16–16.5" | 41–42 cm | 34–35" | 86–89 cm |
| XL | 57 | 47 | 45–48" | 114–122 cm | 17–17.5" | 43–44 cm | 35–35.5" | 89–90 cm |
| XXL | 61 | 51 | 49–52" | 124–132 cm | 18–18.5" | 46–47 cm | 35.5–36" | 90–91 cm |
| XXXL | 65 | 55 | 55" | 140 cm | 19" | 48 cm | 36.5" | 93 cm |
Men’s bottoms size chart#
Jeans, chinos and shorts go by waist: a 34 to 36 in (86-91 cm) waist is an M. Numeric jean sizes match your waist measurement in inches.
| US | EU | UK | Waist (in) | Waist (cm) |
|---|---|---|---|---|
| XS | 38–39 | 28–29 | 30–31" | 76–79 cm |
| S | 40–41 | 30–31 | 32–33" | 81–84 cm |
| M | 42–44 | 32–34 | 34–36" | 86–91 cm |
| L | 45–47 | 35–37 | 37–39" | 94–99 cm |
| XL | 48–51 | 38–41 | 40–43" | 102–109 cm |
| XXL | 52–55 | 42–45 | 44–47" | 112–119 cm |
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Women’s Gap size charts#
Women’s tops and outerwear size chart#
Blouses, tees, hoodies and jackets follow this chart. Sizes pair a letter with US numerics: an M is a US 8-10 and fits a 36.25 to 37.25 in (92-94.5 cm) bust.
| US | EU | UK | Bust (in) | Bust (cm) | Waist (in) | Waist (cm) | Hip (in) | Hip (cm) |
|---|---|---|---|---|---|---|---|---|
| XXS (000–00) | 30 | 2 | 30.25–31.25" | 77–79.5 cm | 24–24.75" | 61–63 cm | 33.25–34.25" | 84.5–87 cm |
| XS (0–2) | 32–34 | 4–6 | 32.25–33.25" | 82–84.5 cm | 25.5–26.5" | 65–67.5 cm | 35.25–36.25" | 89.5–92 cm |
| S (4–6) | 36–38 | 8–10 | 34.25–35.25" | 87–89.5 cm | 27.5–28.5" | 70–72.5 cm | 37.25–38.25" | 94.5–97 cm |
| M (8–10) | 40–42 | 12–14 | 36.25–37.25" | 92–94.5 cm | 29.5–30.5" | 75–77.5 cm | 39.25–40.25" | 99.5–102 cm |
| L (12–14) | 44–46 | 16–18 | 38.75–40.25" | 98.5–102 cm | 32–33.5" | 81.5–85 cm | 41.75–43.25" | 106–110 cm |
| XL (16–18) | 48–50 | 20–22 | 42–43.75" | 106.5–111 cm | 35.5–37.5" | 90–95 cm | 45.25–47.25" | 115–120 cm |
| XXL (20–22) | 52–54 | 24–26 | 45.75–47.75" | 116–121.5 cm | 39.5–41.5" | 100.5–105.5 cm | 49.25–51.25" | 125–130 cm |
Women’s bottoms size chart#
Use this chart for jeans, pants and skirts. Match your natural waist to the waist column: 27.5 to 28.5 in (70-72.5 cm) is an S, 29.5 to 30.5 in (75-77.5 cm) an M. If you know your jean number, it tracks your waist in inches: a size 28 lands at S, a 30 at M, a 31 to 32 at L. For cross-brand conversions, see our women’s jeans size chart.
| US | EU | UK | Waist (in) | Waist (cm) | Hip (in) | Hip (cm) |
|---|---|---|---|---|---|---|
| XXXS | 22 | 26 | 23" | 59 cm | 32" | 82 cm |
| XXS | 23–24 | 28–30 | 24–25" | 61–63 cm | 33–34" | 84.5–87 cm |
| XS | 25–26 | 32–34 | 25.5–26.5" | 65–67.5 cm | 35–36" | 89.5–92 cm |
| S | 27–28 | 36–38 | 27.5–28.5" | 70–72.5 cm | 37–38" | 94.5–97 cm |
| M | 29–30 | 40–42 | 29.5–30.5" | 75–77.5 cm | 39–40" | 99.5–102 cm |
| L | 31–32 | 44–46 | 32–33.5" | 81.5–85 cm | 41–43" | 106–109.5 cm |
| XL | 33–34 | 48–50 | 35–37.5" | 90–95 cm | 44–47" | 114–118.5 cm |
Gap kids’ and baby size charts#
Baby clothing size chart#
Baby sizes go by weight and length. The chart lists kilograms and centimeters: 1 kg is 2.2 lbs, so a 3 to 5 kg (6.6 to 11 lbs) newborn wears 0-3 months.
| Age/Size | Weight (KG) | Length (cm) |
|---|---|---|
| 0–3 MON | 3–5 kg | 50–58 cm |
| 3–6 MON | 5–7 kg | 58–69 cm |
| 6–12 MON | 7–10 kg | 69–74 cm |
| 12–18 MON | 10–12 kg | 74–79 cm |
| 18–24 MON | 12–13 kg | 79–84 cm |
Boys’ clothing size chart#
| US | EU | UK | Chest (in) | Chest (cm) | Neck (in) | Neck (cm) | Waist (in) | Waist (cm) | Hip (in) | Hip (cm) |
|---|---|---|---|---|---|---|---|---|---|---|
| XS | 46 | 36 | 35–36" | 89–91 cm | 13.5–14" | 34–36 cm | 23–24" | 58–61 cm | 32" | 82 cm |
| S | 48 | 38 | 37–38" | 94–97 cm | 14–14.5" | 36–37 cm | 25–26" | 63–66 cm | 34" | 87 cm |
| M | 50 | 40 | 39–41" | 99–104 cm | 15–15.5" | 38–39 cm | 27–28" | 68–71 cm | 36" | 92 cm |
| L | 53 | 43 | 42–44" | 107–112 cm | 16–16.5" | 41–42 cm | 29–30" | 74–76 cm | 38" | 97 cm |
| XL | 57 | 47 | 45–48" | 114–122 cm | 17–17.5" | 43–44 cm | 31–32" | 79–81 cm | 40" | 102 cm |
| XXL | 61 | 51 | 49–52" | 124–132 cm | 18–18.5" | 46–47 cm | 33–34" | 84–86 cm | 42" | 107 cm |
Girls’ clothing size chart#
Girls’ sizes pair a number (4 to 18) with age, height and weight, plus the matching letter for tops. A size 8 (M in tops) fits about 134 to 137 cm (52.8 to 53.9 in) tall.
| Top Size | Age/Size | EU Age/Size | UK Age/Size | Height (cm) | Waist (cm) | Weight (KG) | Bottom Size |
|---|---|---|---|---|---|---|---|
| XS | 4 | 4 | 4 YRS | 99–107 | 53 | 15–17 | 4 regular |
| XS | 5 | 5 | 5 YRS | 107–114 | 56 | 18–20 | 5 regular |
| S | 6 | 6 | 6 YRS | 114–124 | 57 | 20–25 | 6 regular |
| S | 7 | 7 | 7 YRS | 124–134 | 58 | 25–29 | 7 regular |
| M | 8 | 8 | 8–9 YRS | 134–137 | 59 | 29–32 | 8 regular |
| L | 10 | 10 | 10–11 YRS | 137–145 | 61 | 32–37 | 10 regular |
| XL | 12 | 12 | 12 YRS | 145–152 | 64 | 37–42 | 12 regular |
| XXL | 14 | 14 | 13 YRS | 152–157 | 66 | 42–48 | 14 regular |
| XXL | 16 | 16 | 13 XL | 157–162 | 68 | 48–52 | 16 regular |
| XXXL | 18 | 18 | 13 XXL | 162–167 | 71 | 52–57 | 18 regular |
Does Gap run big or small?#
Gap runs true to size for most lines. Sizing is consistent across categories, so your tee size carries over to hoodies and outerwear. If you sit between sizes, take the larger size for a relaxed fit or the smaller for a closer fit. Denim is sized by waist measurement, which makes the bottoms charts the most reliable place to start.
Frequently asked questions#
How do I measure myself for Gap sizes?#
Measure your chest at the widest point, waist at the natural waistline, hips at the fullest point and inseam from crotch to ankle, then match the numbers to the chart for the item you’re buying.
Do Gap sizes run true to size?#
Yes, Gap runs true to size. Check the specific chart for each category, since tops and bottoms are sized from different measurements.
How can I convert Gap sizes to other brands?#
For shoes, our shoe size recommender converts your size between brands. For clothing, compare your measurements against the other brand’s chart, for example our Old Navy size chart for Gap’s sister brand.
What should I do if I’m between sizes?#
Go by fit preference: choose the larger size for a looser fit or the smaller size for a closer fit.
Does Gap offer plus sizes?#
Yes. Gap carries an extended size range online, including plus sizes in many styles.
Sizing tips#
- Measure over fitted clothing, not bulky layers, before you order.
- Start with the bottoms chart for denim: jean numbers track your waist in inches.
- For kids, the height and weight columns give a more reliable match than age alone; size up if your child is between sizes.
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