HazelLoopUK

Crochet yarn calculator · UK

A shopping list
for every colour.

Have the pattern open? Paste its materials list and we’ll fill this in. Or enter the quantities from your pattern. Calculate whole balls or packs, subtract your stash and work out the order cost in pounds.

The yarn shopping planner

What’s going in your basket?

Use the quantities for your chosen pattern size.
We’ll do the whole-ball maths.

packs, prices, delivery & stash live in the full planner

Pick a yarn, type how much your pattern needs, and we’ll count the balls for you.

Optional. Your pattern may already include spare yarn. How allowances work

Need to convert a leftover ball from grams to metres?

Delivery

Per shop, in GBP

Enter the charge for your address and final basket. Blank means unknown; enter 0 only for confirmed free delivery.

your list updates by itself as you type

Your listSee list & buy ↓

This is a shopping calculation, not a pattern generator. It cannot estimate a garment from its size alone or verify yarn substitutions. Prices, shades and availability must be checked at the shop.

How many balls should I buy?

For each yarn and colour: add your optional allowance to the pattern length, subtract the length already owned, divide by metres per ball, and round up. If the shop sells packs, round up again to whole packs of that colour.

For example, 800m of blue and 400m of cream, in 196m balls, need 5 blue and 3 cream balls when sold individually. Combining the two colours before rounding would produce an incorrect shopping list of 7 balls.

Prices are entered per pack; use a pack size of 1 for individual balls. Unknown costs stay incomplete. Read the colour calculation guide or compare two shop offers.

Supplies for this project

Yarn for your list

All crochet supplies ↗
Illustration · colour approximate

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Our pick

Four of the nine blankets in our blanket guide use Stylecraft Special DK, so our tables convert straight to its 295m balls.

Stylecraft Special DK, Charcoal (1128)

One 100g / 295m ball, 100% acrylic, sold by The Great British Yarn Company.

Check price on Amazon (paid link) ↗
Illustration · colour approximate

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Stylecraft Special Aran, Purple (1840)

One 100g / 196m ball, 100% acrylic, sold by The Great British Yarn Company.

Check price on Amazon (paid link) ↗
Illustration · colour approximate

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Stylecraft Special DK pack of five, Burgundy (1035)

Five 100g balls of one shade, 295m per ball, sold by The Great British Yarn Company. Enter it as a pack of 5 in the comparison.

Check price on Amazon (paid link) ↗
0.0gTARE
Illustration, not a product photo

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Our pick

Weighs whole balls and finished squares (5kg capacity) and shows 0.1g, enough for our grams-to-metres converter.

Etekcity EK9000 digital kitchen scale

Tare function, 5kg capacity, 0.1g resolution as stated by the listing (minimum 0.3g).

Check price on Amazon (paid link) ↗

Paid links: we may earn a commission from qualifying purchases. Nothing you type into our tools is added to these links. Check price, seller and delivery at Amazon. Colour swatches are approximate.

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How much yarn do I need? Browse UK wool guides by project

Guides for this calculator