Rainbow Patchwork: Crochet Granny Square Blanket Pattern
Crochet Pattern
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Stoutomaster
4.95 (142 reviews)
Updated Oct 2026
Rainbow Patchwork: Crochet Granny Square Blanket Pattern
Create a colorful granny square blanket with this easy crochet granny square blanket pattern. Perfect for baby blankets or cozy rainbow throws, this pattern is designed for both beginners and seasoned crocheters who love the timeless charm of granny squares now with a vibrant, modern twist.
Bring a burst of color and warmth to your crochet projects by creating a stunning crochet granny square blanket with patchwork-style squares using simple double crochet stitches. Whether you’re crafting a baby blanket, a cozy throw, or a full-size bedspread, this versatile granny square crochet blanket pattern is fully customizable to your size and color preferences.
HOOK
4mm Crochet Hooks
YARN
Double Crochet (DK) Cotton Yarn
Wool Acrylic Blend Yarns
LEVEL
advanced_beginner
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INTRODUCTION
About This Pattern
Granny Squares Blanket Pattern Features
- Skill Level: Easy / Beginner-friendly
- Style: Classic granny square blanket with modern rainbow flair
- Format: Printable PDF instant download
- Written in: US crochet terms
If you love bold colors, satisfying stitches, and a creative twist on a classic, the Rainbow Patchwork crochet granny square blanket is a must-try. This beginner-friendly project lets you explore color combinations while mastering the art of joining granny squares. Perfect for using leftover yarn or creating a new heirloom piece.
Find the free Granny Square Blanket Pattern Below
Brighten up your next project with the Rainbow Patchwork: Blanket Granny Squares Crochet Pattern, a fun, colorful take on the classic granny square. Ideal for both new and experienced crocheters, this pattern combines traditional techniques with vibrant modern colorwork.
Using simple double crochet stitches, you’ll create bold, patchwork-style squares perfect for everything from baby blankets and lapghans to throws and bedspreads. Fully customizable, adjust the size, mix and match colors, or use your favorite yarn cake for a personal touch.
beginner-easy-granny-square-blanket.png
Easy granny square blanket pattern with rainbow patchwork layout
Why You'll Love This Crochet Granny Square Blanket
- Perfect for beginners learning granny squares
- Easy-to-customize size and colors
- Ideal stash-buster project
- Step-by-step layout, sizing, and yarn tips
- Printable & digital PDF version available
- Beginner-friendly and easy to follow
- Bright, colorful, and creative
- Customizable to any size
- Great stash-buster project
- Perfect handmade gift for babies, friends, or home décor
Instant Digital Download
No physical item will be shipped. After purchase, your PDF crochet pattern will be available for immediate download so you can start your next granny square crochet blanket pattern right away!
COMPLETE PROJECT INVENTORY
Materials, Yardage Breakdown & Fiber Selection
Engineered for stash-busting joy or a disciplined heirloom palette. Every yardage estimate includes our recommended 10% tension buffer so you never run out on round 6 of the final corner.
Disclosure: As an Amazon Associate, I earn from qualifying purchases.
Notes
Material Notes
All you need to know about materials required for this project.
Materials Needed
- Yarn: Medium Weight (Acrylic, Cotton, or Wool)
- Yarn Quantity: ~3180 m / 3478 yards total for sample blanket
- Hook Size: 3.5 mm
- Extras: Yarn needle, scissors
Pro Tip: Use soft cotton for breathable summer blankets or acrylic for cozy winter throws.
Yarn Usage Breakdown
- One small square: 15 m / 16 yd
- 9 small squares (1 large): 135 m / 147 yd
- Joining 9 squares: 35 m / 38 yd
- Last round of 12 large squares: 2640 m / 2888 yd
- Joining 12 large squares: 135 m / 147 yd
- Outer border (4 rounds): 3180 m / 3478 yd
Plan your colors and yarn budget easily before starting your rainbow blanket crochet project.
MAKER STUDIO LAB
Interactive Yarn & Sizing Calculator
Planning a custom baby blanket, lapghan, or super king bedspread? Adjust dimensions below to instantly calculate square counts, skeins needed, and total meters with our built-in yarn tension buffer.
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SIZING
Size Information
Blanket Sizing & Layout Options
The Rainbow Patchwork Blanket is made using:
- Small Square: 7.5 x 7.5 cm / 3 x 3 inches
- Large Square (3x3 small squares): 28 x 28 cm / 11 x 11 inches
- Sample Blanket: 120 x 165 cm / 48 x 64 inches
Need a different size? Use the included blanket size chart to plan layouts for:
- Car Seat Blanket: 21 x 25 in / 54 x 68 cm
- Stroller Blanket: 31.5 x 38 in / 81 x 97 cm
- Throw: 48 x 64 in / 120 x 165 cm
- Queen: 90 x 100 in / 205 x 255 cm
- King: 108 x 100 in / 275 x 255 cm
Techniques Used
- Worked in the round
- Double crochet (dc), chains, and slip stitch joins
- Magic ring technique (photo instructions included)
- Seamless joining and corner-to-corner assembly
Photo Tutorial Included
Step-by-step images guide you through:
- Crocheting single-color and multi-color squares
- Joining squares into larger squares
- Adding a neat finishing border
INSTRUCTIONS
Pattern Instructions
Stitches & Abbreviations
This pattern uses standard US crochet terms.
Common abbreviations include:
- ch: chain
- dc: double crochet
- sl st: slip stitch
- ch-sp: chain space
- hdc: half double crochet
easy-crochet-rainbow-blanket.png
Crochet a joyful easy granny square blanket with a vibrant rainbow patchwork look. Perfect for beginners and ideal for colorful home décor or gifts.
Pattern Overview
The pattern is worked in the round, with the right side always facing. Use the magic ring method for a neat center.
Basic Small Square (3 Rounds)
Round 1:
Start with magic ring. (3 dc, ch 2) x 4 into ring, join with sl st.
Round 2:
Ch3, 2 dc, (2 dc, ch 2, 2 dc) in corners, 1 dc in between. Join with sl st.
Round 3:
Ch3, dc across sides, corners are (2 dc, ch 2, 2 dc). Join and finish off.
Full tutorials and instructions are included in the downloadable pdf pattern.
How Many Squares Do You Need?
For a 3 x 4 layout of large squares, you’ll need:
- 12 large squares
- 108 small squares (9 per large square)
Use the square size formula to calculate for your preferred blanket size.
Joining Squares
Join squares using a half double crochet seam for texture and durability. Follow the corner-to-corner method starting in the chain space for a smooth finish.
Finishing Touch: Outer Border
This blanket is finished with 4 border rows:
Row 1-2: Double crochet around
Row 3-4: Half double crochet with corner increases
This border adds structure and a polished edge to your blanket.
Join 3 x 3 small crochet squares
Example blanket is based on 3 x 4 ( 12 ) (Large squares made up from 9 x small crochet squares)
You can make your blanket as big or as small as you like, see standard blanket size table for guidance.
You will need 9 x crochet squares for every large square you wish to complete.
beginner-easy-granny-square-blanket.png
New to crochet? This easy granny square blanket uses simple stitches and creates a stunning rainbow patchwork finish
How to determine the size of your blanket when using different yarn weight, or brand ?
Make a small crochet square, 3 x round of 3 dc sts as per the instructions in the pattern. Measure your square. Let's say your example square is 4"
Divide the desired blanket width and length by the size of one large square:
Example :
- Large square ( made up with 3 x 3 = 9 small squares joined )
- Width = ( 3 x square width ) + ( length of 1 dc row x 3)
- Length = ( 3 x square width ) + ( length of 1 dc row x 3)
Example :
- Width = ( 3 x 4” = 12” ) + ( 0.66” x 3 ) = ( 12” + 3” ) = 15”
- Length = ( 3 x 4” = 12” ) + ( 0.66” x 3 ) = ( 12” + 3” ) = 15”
- Large square size : 15 ” x 15 “
- Width: 50 ÷ 15 = 3.3 → round to 4 large squares
- Length: 65 ÷ 15 = 4.3 → round to 5 large squares
You will need a total of : 20 large squares
You need 9 small squares to complete a large square
9 x 20 = 180 small squares.
STITCHES
Quick Stitch Guide
.
US Stitch Terminology : Abbreviations
-
Chain Stitch - ch
-
Chain Space - ch-sp
-
Double Crochet - dc
-
Half Double Crochet - hdc
-
Next - nxt
-
Repeat from * - rep from *
-
Repeat Rows - rep rows
-
Single Crochet - sc
-
Slip Stitch - sl st
-
Space After - sp after
-
Space Before - sp before
-
Stitches - sts
-
Yarn Over - yo
All stitch instructions are available in both US Crochet Terminology and UK Crochet Terminology, making it easy to follow along using the terms you are most familiar with.
If you are new to any of the stitches used in this pattern, we recommend reviewing the relevant stitch guide before starting. Each guide includes step-by-step instructions, helpful tips, and stitch terminology conversions where applicable.
Take your time, practice any unfamiliar stitches, and most importantly—enjoy the process of creating your blanket one row at a time.
Chain Stitch - ch
UK : ch - chain
AFR : ks - ketting steek
UK : ch - chain
AFR : ks - ketting steek
Make a slipknot, yo, pull through loop. Repeat for desired chains.
FREE PATTERN
Step by Step
.
1
Create a cozy easy granny square blanket bursting with rainbow colors. A relaxing project that’s fun, fast, and satisfying
Start your crochet granny square with a magic ring.
Form a loop with your yarn. loop the yarn around your fingers so that the yarn you are working with, lies on the right while the "tail" of the yarn lies on the left.
Insert the hook through the loop, and slide the crochet hook under both pieces of yarn from right to left.
Use the hook tip to hook onto a portion of yarn from the working end (yarn attached to the ball) of the yarn.
Pull the yarn through the ring to create another loop on your hook, this does not count as your first stitch.
Chain stitch.
Try to leave a workable tail end, as it helps secure the yarn when weaving in ends.
How to make a one color crochet blanket square
Round 1
In magic ring, ch3 counts as the first dc, work 2dc sts, to create first 3 dc st,chain 2, 3dc into magic ring
ch2, 3dc, into magic ring ch2, 3dc, ch2, into magic
ring, join with sl into the top of the starting chain stitch,
( 4 x 3dc ch2 in magic ring)
Round 2 :
ch3, counts as the first dc
st, 1 dc into the next 2 sts,
2dc sts, in ch-sp, chain 2, 2dc in ch-sp, * 1dc into the next 3 sts,
2dc, ch2, 2dc in ch-sp,
repeat from * until the
end of the row.
Join with a slip stitch at the top of the starting chain stitch.
Round 3 :
ch3, counts as the first dc st, 1 dc into the next 5 sts, 2dc in ch-sp, *1dc into the next 7 sts, 2dc, ch2, 2dc in ch-sp, repeat from * until the end of the row.
Join with a slip stitch at the top of the starting chain stitch.
(4 x 11dc sts, ch2)
⚠️ This pattern is for personal use only. Please do not copy or redistribute.
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Pattern Update Notice
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Copyright
Pattern Copyright & Usage.
This crochet pattern and all associated content are the original work of Stouto Crochet.
- ✔️ Personal use allowed
- ✔️ Sell finished handmade items (small-scale)
- ❌ Do not copy, rewrite, or redistribute
- ❌ Do not share or resell PDF patterns
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FAQ
Frequently Asked Questions
.
Is the Rainbow Patchwork Granny Square Blanket Pattern free?
Yes. The Rainbow Patchwork Granny Square Blanket Pattern includes free pattern instructions on the Stouto Creative Crochet website. An ad-free PDF version is also available for makers who prefer a printable, convenient format.
Is this granny square blanket suitable for beginners?
Yes. The pattern is rated Easy / Beginner-friendly and uses simple crochet techniques, making it a good project for crocheters learning how to make and join granny squares.
What crochet stitches are used?
The blanket uses basic stitches including double crochet, chains and slip stitches. The squares are worked in the round using a magic ring, with instructions for joining and finishing the blanket.
What size is the finished blanket?
The sample blanket measures approximately 120 × 165 cm (48 × 64 inches). The pattern also includes sizing and layout options for smaller blankets, throws, queen-size and king-size blankets.
Can I make the blanket a different size?
Yes. The design is easy to customise by changing the number of squares you make and how you arrange them. The pattern includes a blanket size chart to help you plan different finished sizes.
How many granny squares are needed?
The sample uses 12 large squares, with each large square made from 9 small granny squares, giving a total of 108 small squares. You can adjust the number of squares to create your preferred blanket size.
What yarn is recommended?
The pattern uses medium-weight yarn, with acrylic, cotton or wool suitable for the project. The sample requires approximately 3,180 metres / 3,478 yards of yarn in total.
What crochet hook size is used?
A 3.5 mm crochet hook is specified for the sample blanket. Your hook size may need to be adjusted depending on your yarn and personal crochet tension.
Is the pattern written in US or UK crochet terms?
The pattern is written using US crochet terminology. Common abbreviations include ch for chain, dc for double crochet and sl st for slip stitch.
Can I use different colours?
Absolutely. The Rainbow Patchwork design is particularly suited to experimenting with colour. You can use a rainbow palette, coordinated colours, leftover yarn or your own favourite colour combination.
Is a photo tutorial included?
Yes. The downloadable PDF includes step-by-step photo guidance covering the granny squares, joining the squares and adding the finishing border.
Can I use this pattern to make a baby blanket or lapghan?
Yes. The granny square design can be adapted for smaller projects such as baby blankets, car-seat blankets, stroller blankets and lapghans, as well as larger throws and bedspreads.
Where can I get the PDF pattern?
The ad-free PDF pattern is available through the Stouto Creative Crochet pattern stores, including Etsy, Ravelry and the Stouto Shopify store.
About the Designer
Hi, I'm Linda, the designer behind Stouto Creative Crochet. I create original crochet patterns inspired by colour, texture, and the joy of handmade crafts.
Each pattern is personally designed, written, tested, and photographed to provide clear instructions and an enjoyable crochet experience. My goal is to help crocheters of all skill levels create beautiful projects they can be proud of.
Discover more crochet patterns, tutorials, and creative resources from Stouto Creative Crochet.
