Home » Crochet Calculators » How to Calculate Yarn Yardage by Weight: 3 Calculators

How to Calculate Yarn Yardage by Weight: 3 Calculators

These easy crochet project yarn yardage calculators will help you in so many ways! They will calculate yarn yardage in various ways by weight!

Not only can you use it to figure out how many skeins you’ll need for a crochet blanket or project – but if you are a crochet designer, you can use it to figure out how much yarn your customers will need to create your beautiful crochet patterns.

There are a Few reasons you may want to use these crochet yardage calculators:

  1. To determine how much yarn your finished crochet project used.
  2. How many *more* skeins you need for a work in progress crochet project.
  3. Determining how many yards are in those extra balls, skeins and scraps of yarn you have lying around.

Materials Needed:

  • You’ll need a digital food scale OR for larger projects a regular scale (the kind you weigh yourself on).
  • The original skein of yarn label OR look it up online.
  • Container large enough to hold your project if it large (like a cardigan, scarf, blanket, etc.

What to Do With All That Leftover Yarn…

Once you’ve wrapped up your latest crochet or knitting endeavor, you’ll undoubtedly come face to face with a familiar situation: a surplus of leftover yarn in balls or scraps.

This delightful dilemma sparks a multitude of questions that avid crafters often grapple with.

Questions like “What can I make with this extra yarn?” start swirling in your mind.

Moreover, considerations arise regarding the best way to store these colorful remnants.

Yet, the biggest question that often takes center stage in this scenario: just how many yards remain within those cute little balls of yarn?

It’s this very conundrum that has led crocheters, knitters, and crafters of all levels on a quest for an effective means of measuring and utilizing these precious yarn leftovers.

Don’t fret because these calculators will help you figure out how many yards of each color you have.

Determining Crochet Project Yardage Using Weight: A Handy Guide

When it comes to crochet projects, one of the most common dilemmas is estimating the amount of yarn needed to complete your project.

We’ve all been there – wondering whether that extra skein is necessary or fretting over running out of yarn midway through a project.

Fear not, because there’s a simple and accurate method to determine yardage for your crochet project: using weight.

In this guide, I’ll walk you through the process step by step and highlight the benefits of this approach – also, I’ve also created 3 amazing crochet yarn yardage calculators to help you.

If you keep reading, you’ll find a wealth of information on the formulas, why it’s important and how do it on your own.

Free Printable Yarn Yardage Worksheet

You’ll also find a handy FREE printable worksheet to do the math at home if you don’t want to jump on the internet. Just grab your worksheet and your calculator and you’re good to go!

Crochet Project Yarn Yardage Calculators – 3 Methods

Here are a few methods and their calculators to help you figure it all out!

  • The first calculator will give you your yarn yardage by weight for a finished crochet project.
  • The second calculator will give you how many *more* skeins you need to finish your project.
  • The third calculator will give you how many yards are in a used ball of yarn or yarn scraps you have lying around.

Don’t Have a Scale?

That’s okay too. Head over to this post: “Calculate Yarn Yardage Without a Scale.”

This crochet calculator will help you figure out your yardage for your crochet project or how many yards are in those left over balls using just a ruler!

Method 1: Calculate Yarn Yardage of a Completed Crochet Project by Weight.

If you’re like me, you may use several different yarns for a project. This method will work if you’re just concerned about total number of skeins and total yardage for an entire project like a crochet blanket or a cardigan in one color or using a swirl / variegated / ombre style yarn.

However, if you are working on a crochet project with different yarn colors and want to break down yardage by color – then check out the granny square yardage calculator but you can use it for any striped blanket or square using color changes.

Up close of yarn label lto determine weight by yarn
Find how much your yarn weighs
Cinnamon Swirl yarn on a scale showing the full weight of unused yarn
Check the weight of your unused yarn
Granny square using cinnamon swirl yarn on a scale
Weigh your finished crochet project to find yardage. You can also use this method to determine how many skeins you’ll need for an entire blanket. Multiply the final yardage of your finished square by the number of squares you want to make to get total yardage. Divide that by the yardage in each of your skeins to get how many skeins you’ll need.
Cinnamon Swirl Yarn on a scale to determine yardage by weight
Weigh your yarn after working your project, then input into the calculator below following the steps.

Calculate Yarn Yardage from Weight

Formula: Total Yardage = Number of Skeins Used × Yardage per Skein


  1. Weigh Your Completed Project: Use a digital scale to weigh your fully completed crochet project. Record this weight in ounces or grams. This may be difficult for larger projects like blankets. Scroll down to find how to do this for larger projects.
  2. Determine the Weight of a Single Skein of Yarn: Check the label of the yarn you used to find the weight of a single skein. This weight is typically provided in ounces or grams.
  3. Divide the Project Weight by the Skein Weight: Divide the weight of your completed project by the weight of a single skein. This calculation gives you the number of skeins you’ve used for your project.For example, if your completed project weighs 8 ounces and a single skein weighs 2 ounces: [Weight of Your Skein] / [Weight of Your Project] = # of skeins used.
    Formula: Number of Skeins Used = 8 oz ÷ 2 ounces in skein = 4 skeins
  4. Multiply the Number of Skeins by the Yardage per Skein: Look at the label again to find the yardage per skein. Multiply the number of skeins used by the yardage per skein to obtain the total yardage used. For example, if each skein has 200 yards:
    Formula: Total Yardage = 4 skeins × 200 yards/skein = 800 yards

By following these steps, you’ll be able to accurately calculate the total yardage used for your crochet project based on its weight and the yardage per skein of yarn. This method is particularly useful for getting precise estimates and planning your future projects effectively.

But what if it’s a blanket, Cardigan or Large project?

No problem! Do you have a scale that you weigh yourself with? Use that and here’s how.

  1. Grab a container of some kind big enough to fit your project. Weigh it and write down that number.
  2. Put the blanket, cardigan, scarf, etc in that container.
  3. Set the container on the scale.
  4. Jot down the final weight and subtract the weight of the container. Formula: Weight of Container with Project – Weight of Container = Weight of your project.
  5. Use that number in the formulas above to determine yarn yardage of your finished blanket, cardigan or other large crochet project or enter it into the calculator.

Calculator for Yarn Yardage from Weight

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crochet project yardage calculators (1)

Method 2: How Many More Skeins Do I need?

This method will tell you how many more skeins you’ll need for a project. This one works for a solid color OR multiple colors.

When embarking on a crochet or knitting project, one of the most crucial considerations is how much yarn you’ll need.

The method we’re about to explore takes the guesswork out of this equation and provides a clear understanding of the additional skeins required to complete your project.

This calculator is helpful if:

  • The pattern you’re working doesn’t list yardage or # of skeins needed.
  • You’re creating a design that uses a basic stitch and there aren’t any color changes.
  • You know the total number of skeins for a project.

Step 1: Weigh Your Current Progress

Begin by weighing your current work-in-progress using a digital scale. This weight includes the yarn you’ve already used, giving you a starting point for calculations.

If you’re project is large, you can use a container. First weigh the container alone, then write it down. Then place your project in the container and weight both of them. Subtract the container weight from the total weight of both to get your current work-in-progress weight.

Step 2: Determine Skein Weight

Identify the weight of a single skein of the yarn you’re using. This information is usually available on the yarn label and is stated in ounces or grams.

Step 3: Calculate the Additional Skeins Needed

  • Divide the weight of your work-in-progress by the weight of a single skein. This will provide you with an estimate of the number of skeins you’ve already used.
  • Subtract this number from the total number of skeins required for your project to determine how many more skeins you need.

By using this weight-based method, you’re equipped with a clear roadmap for your project’s yarn requirements.

Say goodbye to uncertainty and confidently plan your creative journey, knowing exactly how much more yarn is needed to bring your masterpiece to life.

Calculator: How Many More Skeins Do I Need?

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blue yarn I love this cotton to calculate yarn yardage by weight
I love this cotton yarn
close up of a yarn label
Find the weight in ounces or grams from the label, if you don’t have the label you can find one online by searching.
Up close of a digital scale with a crochet hook pushing the tare button
Remember to tare it to zero before you do your weighing
scale with yarn on it to determine weight of the yarn
Full skein of yarn weight

Method 3: Convert Yarn Weight To Length

Use this calculator to determine how many yards are left in those balls of yarn you have lying around!

Similar to the method 1, this method will determine how many yards are left in those scraps or balls of yarn you have lying around so you can easily plan your next crochet project with ease!

What you’ll need?

  • The original ball of yarn so you know how many yards were in the original skein.
  • Kitchen scale works best for this method.

If you don’t have the original info for the yarn, head over to the Yarn Yardage Without a Scale Post.

blue yarn I love this cotton to calculate yarn yardage by weight
You can also weigh a used ball of yarn to find yardage
blue yarn I love this cotton to calculate yarn yardage by weight
Weigh your used ball of yarn

Formula: Yards Left = (Total Yardage / Total Weight) × Weight of Yarn Remaining

In this formula:

  • Yards Left: The number of yards remaining in the ball of yarn.
  • Total Yardage: The original yardage of the entire ball of yarn.
  • Total Weight: The original weight of the entire ball of yarn.
  • Weight of Yarn Remaining: The weight of the yarn that is still left in the ball.

By using this formula, you’ll be able to calculate the estimated number of yards left in the ball of yarn based on the remaining weight and the original yardage-to-weight ratio of the yarn. Keep in mind that this formula assumes a consistent yardage-to-weight ratio throughout the ball of yarn.

Convert Yarn Weight To Length Calculator

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Benefits of Using Weight for Yardage Calculation

Accurate Estimate: Weight-based calculations provide a precise yardage estimate, reducing the risk of running out of yarn or buying too much.

Versatility: This method works well with all types of yarn, regardless of their thickness or fiber content. You can apply it to your favorite chunky wool or delicate cotton yarn with ease.

Time-Saving: No more unraveling long strands of yarn to measure them individually. Weighing your project is a quick and efficient way to get an estimate.

Project Planning: By accurately knowing the yardage used, you can plan future projects more effectively. No more guesswork or underestimating required.

Eco-Friendly: Prevent excessive yarn purchases and reduce waste by buying only what you need. This approach supports a more sustainable approach to crafting.

Cost-Effective: Avoid overbuying yarn and save money in the long run. With accurate yardage estimates, you’ll make smarter purchasing decisions.

Here’s the Recap!

Here is a synopsis of everything we’ve learned about in this post

How to Calculate Yarn Yardage from Weight

Calculating yarn yardage from weight involves a straightforward formula. First, weigh your finished crochet project using a digital scale. Then, locate the weight of a single skein of the yarn you used. Divide the project weight by the skein weight to determine how many skeins were used. Finally, multiply the number of skeins by the yardage per skein to get the total yardage used in your project. This method provides accurate estimates and helps you plan your projects effectively.

How to Convert Yarn Weight to Length

Converting yarn weight to length is a two-step process.

  1. Begin by finding the number of skeins used for your project, which you can determine by dividing the project weight by the weight per skein.
  2. Then, multiply the number of skeins by the yardage per skein to obtain the total yardage for your project.

This conversion method allows you to understand the amount of yarn used in terms of its length, providing valuable insights for future crafting endeavors.

How to Figure Out Yarn Needed for a Project

To figure out how much yarn you need for a project, you can rely on either weight or length-based calculations.

  1. By using the weight of your finished project and the weight of a skein, you can estimate the number of skeins required.
  2. Alternatively, if you know the total yardage needed for your project, divide it by the yardage per skein to determine the number of skeins needed.

These calculations help you purchase the right amount of yarn, avoiding overstock or shortages.

Some People Ask – What’s The Yardage in a Pound of Yarn

The yardage in a pound of yarn varies based on the yarn’s thickness. Typically, a pound of yarn can contain anywhere from hundreds to thousands of yards.

Thicker yarns have lower yardage per pound, while finer yarns boast higher yardage. It’s crucial to consult the yarn label for precise information on yardage per pound.

This variation underscores the importance of understanding yarn weight and its implications when planning projects or purchasing supplies.

Like I mentioned above, using the weight of your crochet project to determine yardage is a straightforward and reliable method. Not only does it save time and reduce waste, but it also empowers you to make informed choices for your projects.

So, the next time you’re embarking on a crochet adventure, don’t forget to bring out your trusty kitchen scale and get ready to crochet with confidence!

If you enjoyed this post, please check out my other crochet calculators.

More Crochet Calculators You’ll Love

  1. C2C Yardage Calculator
  2. C2C Blanket Size Calculator
  3. Double Crochet Graphghan Calculator
  4. How Many Chains Do I need Calculator
  5. Row by Row Graphghan Calculator

Thanks for stopping by!

I hope you found this helpful and remember to check out the other yardage calculators!

Happy Crocheting Copy
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crochet project yardage calculators (1)

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