Sea Scallops vs. Bay Scallops: Size, Texture and Taste Compared

The short answer: sea scallops are much bigger

Size is the clearest difference. Sea scallops usually measure about 1 1/2 to 2 inches in diameter. Bay scallops are much smaller, at roughly 1/2 to 3/4 inch across. In practical terms, a pound of sea scallops typically holds about 20 to 30 pieces. A pound of bay scallops holds many more of the small ones.

Food writers commonly describe two basic kinds of scallops sold in the US: sea scallops and bay scallops. So yes, there is a real difference between them. It goes beyond the label, too, because the two also differ in texture and how they are typically cooked.

Side-by-side comparison

Criterion | Sea scallops | Bay scallops

Typical diameter | About 1 1/2 to 2 inches | About 1/2 to 3/4 inch

Count per pound | Typically 20 to 30; sold graded by number per pound | Much higher because each piece is smaller; no specific count in the sources reviewed

Texture | Firmer and somewhat chewier | Usually described as more tender, even melt-in-your-mouth

Flavor | Sweet; whether they are sweeter than bay scallops is disputed | Often described as delicately sweet

Commonly suggested cooking | Pan searing or roasting as individual pieces | Not specified in the sources reviewed

How scallop sizing works at the counter

Sea scallops are graded by the number of scallops per pound. A lower count means larger individual scallops, and a higher count means smaller ones. The commonly cited range of about 20 to 30 sea scallops per pound gives a useful baseline when reading a label or ordering from a fishmonger. The evidence reviewed for this guide does not give a standard per-pound count for bay scallops.

Do bay scallops taste like sea scallops?

They are similar, but sources disagree on which one is sweeter. Several food publications describe bay scallops as sweeter and more tender, with a delicate, melt-in-your-mouth quality. The same sources call sea scallops still sweet but chewier. One online seafood community discussion takes the opposite view on sweetness. It describes sea scallops as leaner, firmer and sweeter, and bay scallops as fattier.

The sources agree on texture: sea scallops are firmer and chewier, and bay scallops are softer and more tender. Flavor reports conflict, so treat sweetness as a matter of personal taste and of the particular scallops you buy, not as a fixed rule.

Which should you buy?

• Choose sea scallops when you want each scallop to be a distinct, substantial piece, such as pan-seared or roasted scallops served individually. Their size and firmer texture suit that use.
• Choose bay scallops when you want small, tender pieces. The sources reviewed describe their texture and flavor but do not name specific dishes for them, so fit them to recipes that call for small scallops.
• If you are following a recipe, check which type it names. The two differ greatly in size, so swapping one for the other changes the number of pieces per pound and the eating texture.

Neither type is objectively better. The right choice depends on whether you want large, firm pieces for searing or small, tender ones.

Questions this guide cannot fully answer

• Patagonian scallops: The evidence reviewed does not explain what this market name refers to or how it compares in size or species with bay and sea scallops. Check the supplier's species information on the package.
• Why sea scallops cost more: No verified pricing or cost explanation was available, so this guide does not offer one.
• Sea scallops vs. regular scallops: The sources describe sea and bay scallops as the two basic kinds but do not define a separate regular category. Ask the seller which type an unlabeled product is.
• Species names and nutrition: Scientific names and nutrition comparisons were not supported by the evidence reviewed and are left out.