How Much Does a Whole Beef Tenderloin Weigh? Your Complete Guide

Beef tenderloin is a prized cut of meat, known for its tenderness and rich flavor. Whether you’re planning a special dinner, a holiday feast, or just want to try your hand at cooking a restaurant-quality steak at home, understanding how much a whole beef tenderloin weighs—and how much you’ll actually need—is essential. In this guide, we’ll break down everything you need to know about beef tenderloin weights, trimming, serving sizes, and tips for buying the perfect cut.

What Is Beef Tenderloin?

Beef tenderloin is a long, cylindrical muscle that runs along the spine of the cow. It’s considered the most tender part of the animal, which is why cuts like filet mignon and chateaubriand come from this section. Because of its tenderness and mild flavor, beef tenderloin is a favorite for special occasions and elegant meals.

Average Weight of a Whole Beef Tenderloin

If you’re wondering how much a whole beef tenderloin weighs, the answer can vary depending on several factors, including the size of the animal and whether the tenderloin is trimmed or untrimmed.

• Untrimmed (PSMO) Beef Tenderloin: A whole, untrimmed beef tenderloin—sometimes labeled as “PSMO” (Peeled, Side Muscle On)—typically weighs between 4 to 6 pounds (1.8 to 2.7 kg). Some may be as small as 3 pounds or as large as 7 pounds, but 4 to 6 pounds is the most common range found in grocery stores and butcher shops.
• Trimmed Beef Tenderloin: After removing the silverskin, fat, and side muscle, a fully trimmed beef tenderloin will weigh less—usually around 3 to 4.5 pounds (1.4 to 2 kg).

The amount of trimming done can affect the final weight significantly. If you buy an untrimmed tenderloin, expect to lose about 1 to 2 pounds during the trimming process.

Understanding PSMO: What Does It Mean?

When shopping for a whole beef tenderloin, you might see the term “PSMO.” This stands for “Peeled, Side Muscle On,” which means the tenderloin still has its side muscle and silverskin attached. This version is usually more affordable per pound but requires some extra work to trim before cooking.

How Much Beef Tenderloin Do You Need Per Person?

One of the most common questions is: How much beef tenderloin should I buy for my guests? Here’s a simple guideline:

• Main Course: Plan on serving about 6 to 8 ounces (170-225 grams) of cooked beef tenderloin per person.
• For Larger Appetites or No Sides: Consider increasing to 8 to 10 ounces (225-285 grams) per person if you expect larger appetites or fewer side dishes.

Since beef tenderloin loses some weight during trimming and cooking (about 10-15%), it’s wise to buy a little extra to ensure everyone gets enough.

Trimming and Preparing Beef Tenderloin

A whole beef tenderloin often requires some preparation before it’s ready to cook. Here’s what you need to know:

• Silverskin Removal: The tough, shiny membrane called silverskin should be removed with a sharp knife, as it doesn’t break down during cooking.
• Side Muscle: The small muscle attached to the side can be removed and used for stir-fries or stews.
• Fat Trimming: Excess fat can be trimmed away for a cleaner presentation and more even cooking.

If you’re not comfortable trimming it yourself, many butchers will do it for you—just ask!

Buying Tips: How to Choose the Best Beef Tenderloin

Selecting the right beef tenderloin can make all the difference in your meal. Here are some handy tips:

• Decide on Trim Level: Untrimmed (PSMO) is usually cheaper but requires more prep. Trimmed is convenient but costs more per pound.
• Look for Marbling: Fine streaks of fat throughout the meat (marbling) add flavor and juiciness.
• Avoid Discoloration: The meat should be bright red with no brown or gray spots.
• Check Packaging Date: Fresher is better—look for recent packaging or ask your butcher for advice.

How to Store a Whole Beef Tenderloin

If you’re not cooking your beef tenderloin right away, proper storage is key:

• Refrigerator: Store in the coldest part of your fridge. Unopened vacuum-sealed beef tenderloin can last up to two weeks; once opened or if wrapped in butcher paper, use within three days.
• Freezer: For longer storage, wrap tightly in plastic wrap and foil or use a vacuum sealer. Frozen beef tenderloin keeps well for up to six months without losing quality.

Cooking Tips for Perfect Beef Tenderloin

This cut shines when cooked simply. Here are some quick tips for best results:

• Bring to Room Temperature: Let the meat sit out for about 30 minutes before cooking for even doneness.
• Season Generously: Salt, pepper, garlic, and fresh herbs are classic choices.
• Sear First: Sear in a hot pan to develop a flavorful crust before finishing in the oven or on the grill.
• Use a Meat Thermometer: For perfect doneness, check internal temperature: rare (120-125°F), medium-rare (130-135°F), medium (140-145°F).
• Rest Before Slicing: Let your cooked tenderloin rest for at least 10 minutes so juices redistribute.

Frequently Asked Questions About Beef Tenderloin Weights

Can I buy just part of a beef tenderloin?

Absolutely! Many butchers sell center-cut portions or smaller sections if you don’t need a whole one. Just ask for the amount you need by weight.

How many people does a whole beef tenderloin serve?

A whole untrimmed beef tenderloin (4-6 pounds) typically serves 8 to 12 people, depending on portion size and sides. After trimming and cooking loss, plan on about half a pound per person.

Is beef tenderloin the same as filet mignon?

No—but they’re related! Filet mignon is cut from the smaller end (the “tail”) of the beef tenderloin. The entire tenderloin contains several filet mignon steaks along with other sections like chateaubriand (from the center).

Should I buy trimmed or untrimmed?

If you want convenience and less prep work, buy trimmed. If you prefer saving money and don’t mind doing some trimming yourself, go for untrimmed (PSMO).

How do I know if my beef tenderloin is fresh?

The meat should look bright red with minimal odor. Avoid any cuts that look dry or have brown/gray patches. Always check the sell-by date!

The Bottom Line

A whole beef tenderloin usually weighs between 4 and 6 pounds untrimmed, yielding around 3 to 4.5 pounds trimmed. With its unbeatable tenderness and versatility, it’s perfect for feeding a crowd or making any meal feel special. Remember to plan ahead for trimming loss and serving sizes so everyone leaves the table happy—and full!

If you’re new to preparing beef tenderloin, don’t hesitate to ask your butcher for help. With these tips in hand, you’ll be ready to impress your guests with a perfectly cooked, melt-in-your-mouth centerpiece!