8 Inch vs 9 Inch Chef Knife: Which One Should You Pick?

If you’re in the kitchen cutting things, you want a knife that’s comfortable. We totally understand that. But there are knives of different sizes around us that can make anyone confused. That’s why you need to know the differences between both knives. 

So, what are the differences between an 8 inch vs 9 inch chef knife

The main difference between 8-inch and 9-inch chef knife is the knife blade length. It’s good for people with a height of 5 feet 8 inches. Taller people will find a 9-inch knife easier to use. 8-inch knives also require less space in the kitchen. You’ll also need a bigger board for the 9-inch knives.

Anyways, that was only a small portion of the debate. We’ve discussed and compared both of these knives in detail. 

Stay tuned till the end if you want to know more about chef knives. 

8 Inch vs 9 Inch Chef Knife: Primary Differences

There are 4 types of chef knives that are preferred by most professional chefs. It’s because there are different chef knife uses

These knives are 8-inch, 9-inch, 10-inch, and 12-inch knives. Needless to say, these knives have different purposes.

Out of these 4 knives, only 2 of them are used more than their counterparts. And they are 8-inch and 9-inch chef knives. 

But before we head into a detailed discussion, it’s best to know the key information. These key differences will help you understand the comparison better. 

For example, you can’t choose between ceramic and aluminum slow cookers without key information. 

That’s why we have come forward and set you up with a table. Here’s what you’re looking for:

Factors8 Inch Chef Knife9 Inch Chef Knife
Knife Length 8 Inch9 Inch
Weight LighterSlightly Heavier
Ease of UseEasier for user whose height is 5’ 8” and aboveEasier for user who are taller than 5’ 9”
User Forearm Length8 Inch or Bigger9 Inch or Bigger
Slicing EasyEasier
Required SpaceLessMore
Required Board Size210 mm240 mm

Now let’s take a look at this graph for a brief overview:

Now, let’s move on to the main segment!

8 Inch vs 9 Inch Chef Knife: Full Discussion

If you haven’t made a decision yet, that’s totally fine. We have compared them in each category and tried to reach a conclusion.

Simply sit back and read through everything and you’ll find an answer in no time. 

Knife Length & Weight

Let’s start with the basics first. Since length and weight are directly related to comfort, we’ll talk about them first. 

Source: thespruceeats.com

Length is also an important difference between chef knives vs santoku knives. The santoku knife was mainly created for slicing and dicing. But the chef knife definition was about cutting beef. 

But today the chef knife is used by all western cooks in every western kitchen. 

The length of a knife is the length of the blade. The handle isn’t counted. But it does matter when you consider the total weight.

Naturally, the 8-inch knife has an 8-inch long blade. On the contrary, a 9-inch knife will have a 9-inch blade. 

Without a doubt, you can guess that the 9-inch blade will be slightly heavier. And that’s without considering the weight of the handle. 

Because of its lightweight, the 8-inch knife is mainly used for slicing and dicing. But there are other 8-inch chef knife uses

On the other hand, the 9-inch knife is also easy to use. But the extra length helps with cutting meat. If the additional weight doesn’t bother you, then a 9-inch knife will be the best option.

A good knife requires a good sheath. That’s why we’ve recommended our best picks-

Simply choose whichever you like more and that’ll get you started! An 8-inch chef knife sheath is important to keep the knives pristine. 

You can also use a chef knife roll if you want to. 

Winner: 8-inch Chef Knife

User Height

Next, we’re going to talk about the user height. It’s important because it’s harder to work with bigger knives. 

Consider this a debate between bread lame and knives. You can carve through bread with both. But doing it with a bread lame is way easier. 

Similarly, the user height matters a lot here. For example, a chef under 5 feet 4 inches should use 6-inch knives. Because that person has a smaller hand. 

This makes it hard to use an 8 or 9-inch knife properly. 

To use an 8-inch knife efficiently, you’ll have to be at least 5 feet 8 inches. People of 5 feet 6 inches or 5 feet 5 inches will have a tough time. But they might be able to adjust themselves. 

For them, it’s still better to use 6-inch chef knives or santoku knives. 

Since the 9-inch blade is bigger, the requirement is higher. But it doesn’t really matter. Because anyone with a height of 5’8” will be able to handle a 9-inch blade. 

But people taller than 5’9” will have an easier time with it. 

Pick a knife that fits your criteria and you’re all good to go! 

Winner: Tie

Slicing, Required Space & Board Size

It’s time to talk about slicing and the required space when cutting. The shorter the blade, the easier it is to slice with it. 

A 9-inch chef knife uses involves both slicing meat and veggies. But the 8-inch knife is easier to slice with due to being short. 

The 8-inch chef knife also requires less space and board size. So if you have shorter space, you may prefer an 8-inch knife instead. 

You’ll also need a board size of 210 mm at the very least. 

Source: williams-sonoma.com

On the contrary, the 9-inch chef knife requires more space and a bigger board. For that, you’ll need a 240 mm board and a much bigger space. Otherwise, your efficiency will be reduced. 

Remember that an efficient knife is one that’s kept sharp over time. Luckily, there are a couple of easy ways to keep your knives sharp

Chefs all over the world swear by the 8-inch chef knives. It’s handy and easier to cut with. 

Winner: 8-inch Chef Knife

Final Verdict: Which One Should You Opt For? 

In case you haven’t reached a final decision yet, we’ll help you. In the end, it all depends on the preference. 

Here’s a table for you to get an overall summary of the two products:

If your height is less than or around 5’8”, you’re better off with 8-inch knives. If you’re any taller, you’ll find the 9-inch knife efficient. 

The space around you also matters. If you have big enough space, pick the 9-inch knives. But for most people, 8-inch chef knives will be the best choice. 


What size chef knife is most versatile?

The most versatile chef knives are the ones between 6 and 8-inch knives. These knives are good for slicing, dicing, chopping, and so on. You can also work on meat with these knives. Another reason is the user’s height. Most chefs’ heights are between 5’4” and 5’8” which is perfect for these knives. 

How heavy should a chef’s knife be?

A good chef knife should be light enough to keep you unbothered. In general, a chef’s knife should weigh about 5 oz. But remember that extra weight can add to the slicing power.  That’s why it’s subjective and depends on the chef. If the extra weight isn’t bothering, stick to heavier knives. 

How thick should a chef knife handle be?

The proper thickness of a chef knife’s handle should be between ¾” and 1”. That’s for the shortest point. For the tallest side, the thickness should be between 5/4” and 3/2”. A chef knife’s thickness is something chefs should consider. Because the comfort of holding the knife is directly related. 

Final Words

That was everything we could gather on an 8 inch vs 9 inch chef knife. Hopefully, this comparison between 8 and 9-inch knives helped you. 

The best way to choose between these two is to try them yourself. Ask your friends that have these knives and try them out yourself. You’ll get the answer right away. 

Have a nice day.

Leave a Comment

Your email address will not be published.

Scroll to Top