By Alex Woodbury on Friday, 28 February 2025
Category: Patterns

How to Fit a Pattern: Comprehensive, Beginner-Friendly Guide

 Sewing your own clothes can be incredibly rewarding.

But when you take a step further and tailor them to fit perfectly—that's next-level satisfaction.

But here's the thing.

Pattern fitting is NOT easy.

It takes time, patience, and a lot of practice.

That's why, in this article, we'll go over everything you need to know before fitting your first pattern — from the equipment you need to how to test your patterns. 

Before We Begin: What Is Pattern Fitting?

In a nutshell, pattern fitting is when you adjust a pattern to custom-fit your body.

A sewing pattern is essentially a set of paper templates that guide you in creating a garment. Usually, once you pick the correct size, the finished piece will fit you as expected.

However, while following a generic pattern will give you wearable clothes, they won't fit your body perfectly.

That's where pattern fitting comes in.

Pattern fitting is adjusting the details of a pattern to give the best fit for you. 

How To Adjust Patterns To Fit You Perfectly in 5 Steps

Step #1: Gather The Essential Tools for Pattern Fitting

To start pattern fitting, you'll need:


With those five simple tools, you can start adjusting your patterns. 

Step #2: Get Accurate Body Measurements

One of the MOST important parts of pattern fitting is getting accurate body measurements. Linda has a great Craftsy class called Fitting Solo that is a great reference for measuring yourself, noting great fit for tops and bottoms.

If you want clothes to fit, you'll need your full bust measurement for tops and your hip measurement for bottoms.

But if you want it to custom-fit perfectly, you'll need to measure a few more things.

For tops, you'll want to measure:


For bottoms, be sure to measure:


If you'd like full instructions on measuring these, you can check out our How to Measure Yourself Guide here.

Step #3: Adjust Your Pattern

Once you have your body measurements, it's time to compare it with your pattern.

After that, you'll take your pattern tracing paper and draw up a new and adjusted pattern for yourself.

You'll want to give your measurements some inches of ease so your clothes won't be too tight.

Here's a quick chart you can use for tops: 

And for pants:

Step #4: Test Your Fitted Pattern

A mistake many people make is immediately using their new pattern right after making adjustments.

Don't do this. You'll want to test your new custom-fitted pattern first.

One way to do this is to pin-fit your pattern. Take your adjusted pattern and pin it together at the shoulders and side seams. This will allow you to see if your pattern fits.

Another great option is to use muslin fabric as a test. Muslin is relatively cheap and is the best way to test your fitted pattern.

So, sew together your piece using muslin and try it on. This will allow you to see exactly how your pattern will fit.

Muslin fabric also allows you to adjust your pattern quickly, see if it works, and play around with some details.

Also, don't be afraid to make markings on your muslin where adjustments are needed. You'll want to note any changes you make to your muslin. This way, you can copy it to your pattern paper and your final garment. 

Step #5: Sew Your Garment

After doing tests on muslin fabric and making your final adjustments, it's finally time to sew.

So take your fitted pattern, place it on your fabric, and cut away.

Test Your Skills: Easy Patterns to Practice Fitting

Want to practice your skills?

The best way to do this is to start with a simple pattern. Simple patterns allow you to adjust it to your body without worrying too much about mistakes. Generally speaking, complicated patterns are more challenging to custom-fit, so start simple.

Here are some great beginner-friendly patterns you can use to practice altering:

Conclusion

Practice makes perfect.

Always remember that whenever it comes to sewing, or, more specifically, fitting patterns.

It won't be perfect on your first attempt, but don't let this discourage you from trying.

Instead, keep honing your skills; before you know it, you'll be sewing garments with the perfect fit every time.

So go ahead.

Follow the steps above, and try fitting your first pattern today.

Want to learn more about fitting patterns? Check out our Fashion Fitting Workbook, or our Fashion Fitting Encyclopedia to learn more.