Old Navy Sizing Guide

Old Navy Sizing: What the Charts Actually Mean

Old Navy Sizing Guide is decent if you know what you're looking at and terrible if you don't. I've been buying clothes from this place for roughly fifteen years across three different corporate restructurings, and the sizing has never been consistent enough to trust without checking. Let me tell you how to make it work.

The first thing most people get wrong is assuming one size chart applies to everything. It doesn't. Jeans use a completely different measurement system than hoodies. Dresses have their own. The site separates these into categories but doesn't always make that obvious before you land on a product page. If you're looking at a pair of jeans, click the "Size Chart" link near the top of the product description and look specifically for the denim chart, not the general apparel one. The waist and hip measurements can differ by half an inch between categories, which is the difference between something fitting and something that won't zip. Here's the process I actually follow instead of just picking a size off the rack. Take your measurements. Not your "guess what you wear" measurements. A real tape measure. Bust or chest at the widest point, waist at the narrowest, hips at the fullest part. Write them down. Then go to the product page and click the sizing chart for that specific item type. Match your numbers to the chart. If you fall between sizes, go with the larger one for knit fabrics and the smaller one for woven or non-stretch items. This isn't theoretical — I learned this after buying three pairs of jeans that were too tight in the hips because the size chart I was reading didn't account for the stretch factor in the fabric blend. There's a specific issue with Old Navy's stretch denim that nobody talks about. Their size charts list flat garment measurements, not body measurements, for many of their pants. This means the numbers on the chart already include ease allowance. If your actual waist is 32 inches and the chart says size 8 has a 32-inch waist, that pants will actually feel snug because the 32 inches is the garment measurement including the stretch. For stretch denim specifically, size down one from what the chart tells you if you're right on the line. For non-stretch cotton or chambray, stick to the chart exactly.

I ran into this exact problem last year with a pair of high-rise jeans. My measurements lined up perfectly with a size 10 according to the chart. I ordered both 8 and 10 as a test. The 10s were uncomfortably tight in the hip area after one wear, while the 8s fit perfectly. The fabric was their "Super Power" stretch denim, which has significant give. The chart didn't distinguish between fabric types in its recommendations. I've since learned to always check the product details for the fabric composition before deciding whether to size up or down.

Common Pitfalls That Waste Your Time

The biggest waste is ordering three sizes of the same item "just to try them on." This happens because people read the wrong chart. Always verify you're looking at the chart for the correct product category. A women's dress size chart and a women's pants size chart are not interchangeable, even though both say "size 6" at the top. The actual measurements underneath are completely different. Another issue is the inconsistency between online and in-store inventory. Sometimes the sizes available online don't match what's on the floor. If you're shopping the app and a size runs out, don't assume the next size up will fit better based on the chart alone. Old Navy's quality control on sizing runs varies by batch and sometimes by colorway within the same product. A size 12 in black might measure differently than a size 12 in blue on the same pair of pants. This is a manufacturing variance, not a mistake, and it means the chart is a guideline, not a guarantee. Their Petite and Tall sizing is also worth mentioning because it's essentially an afterthought. The length adjustments are minimal — maybe an inch or so — and the width proportions don't scale proportionally. If you're noticeably shorter or taller than average, the Old Navy sizing guide won't solve your problems. You'd be better off looking at brands that specialize in those proportions, or ordering from Old Navy and planning to have the hem altered. It's cheaper than dealing with the return process.

What the Size Chart Won't Tell You

Old Navy has multiple fit lines now. The "Classics" line runs true to size. The "Curve" line is designed for fuller hips and a narrower waist, and it uses a different sizing scale entirely. The "Skins" line is their skinny fit and runs smaller than the standard cut. If you're browsing the main sizing guide and you don't know which line you're looking at, you'll get the wrong size every time. Check the product name carefully. It will usually say something like "High-Rise Skinny Jeans" or "Classic Straight Leg Jeans" in the title. That tells you the fit family. The return policy is your safety net, but it's not free. You get sixty days from delivery for a full refund with the original tags attached. After that it drops to store credit only. I've had friends who bought six sizes of something, tried them on, and kept returning the wrong ones until they found the right fit. That works financially only if you're paying standard shipping. If you're using free shipping promotions or in-store pickup, the logistics get complicated fast. One return is fine. Three returns in a month raises flags. Don't rely on the size numbers themselves as a primary indicator. Old Navy, like most mass-market retailers, uses vanity sizing where the label number doesn't correspond to any consistent measurement standard. A "size 10" today is not the same physical garment as a "size 10" from five years ago. The charts have shifted. Always measure yourself and compare to the current chart on the specific product page, not your memory of what size you used to buy.

The download link for the full size guide lives on their website under Help or Customer Service, but honestly it's just a PDF version of what's already on the product pages. The online interactive chart is more useful because it updates when they change their sizing. The PDF gets outdated. I keep a screenshot of the current chart saved on my phone when I'm about to order, which takes about ten seconds and saves me from second-guessing myself later.