Origami Paper Ratio Calculator – Work Out What Paper Size To Use

What is the Origami Paper Ratio Calculator?

So the origami model you are making requires A4 paper or money sized paper? But you don’t have that size, you want to work out what size to trim your paper to, in order to fold the origami model?

Or  the origami model requires a certain ‘ratio‘ such as 1:2 and your brain hurts at the thought of figuring out what that’s supposed to mean.

Or – if you need to figure out what the ratio is – of your paper or anything really, you can find out what it is, for your own origami project or maths etc.

If instead you wanted to work out what sized paper to use in order to achieve a specific sized box for example, check out the origami paper size calculator

The Origami Paper RATIO Calculator:

Enter the size of the paper that is used in the tutorial. Alternatively, add the ratio, such as 1:5. For example, if the tutorial used A4 paper (21cm x 29.7cm), enter 21 and 29.7 into the fields.

The Shortest Edge box is only useful if you are for example, making an origami lampshade from a roll of paper, you have the short side of the paper, and you’d like to know what length the paper should be trimmed to.


If for some reason the result you get is wrong, please check that you followed the instructions correctly, and entered the ratio into the right boxes, the first box is for the first (shortest) number of the ratio, i.e 1:8 – 1 goes into the first box. 

Latest Posts:

DIY Paper Tassel Tutorial

Learn how to make a pretty tassel out of a sheet of paper! This DIY paper tassel makes a great decoration to add to many different kinds of craft projects. You can make it as big as you like, a simple loop method is also shown. 

Origami Woven Paper Hearts Tutorial

Make some easy origami woven paper hearts! These cute origami hearts are easy to make with strips of paper. No glue required! Perfect little gift for Valentine’s Day or any time of year!

Origami Weaved Mats Tutorial – Paper Placemats

Learn how to make beautiful origami weaved paper mats, use them for display or as real placemats or coasters. You can re-inforce them with varnish. The mats can be made as large as you like. Made with strips of paper, weaved together using a traditional technique.

Twisted Round Origami Box / Bowl Tutorial

Learn how to make a twisted round origami box or bowl, it’s rounded shape is very unique. Made from one sheet of square paper, no glue or cuts. You can display some lovely items in these origami pots.

Origami Dustpan Scoop Tutorial – Spring Cleaning DIY

Do some spring cleaning with a useful origami dustpan or scoop! Made from 1 sheet of square paper, you can make the super easy version or the intermediate continuation. They can be used as throw away dustpans to clean up after parties, or if you make two, they can be used to scoop rubbish into a bin!

Kirigami Star Decoration Tutorial & Free Template

Learn how to make a kirigami star made out of a strip of paper or card. Download the free printable template! These three-dimensional paper stars make great hanging decorations at Christmas or all year round!

So, what did you think?

Your email address will not be published. Required fields are marked *


  1. Chrissy

    If anyone has any issues, please feel free to comment 🙂

  2. Chrissy

    oh sorry to hear that – maybe I didn’t set it up correctly 0_0 i will check, let me know if you need any help, I can just help you with the measurements? 🙂

  3. Jason

    this is finally working – thanks so much. I have been trying for hours to figure it out.

  4. Frustrated Dude

    i cant get it to work for me… maybe im just being dumb here tho



Please Subscribe to my Newsletter!

You will receive a FREE pack of printable origami papers!

Enter your email to receive post updates, giveaways, and other cool stuff! 

*No spam guaranteed!

You have successfully subscribed! Check your inbox now to confirm your subscription. (check junk mail too 😀)


You will receive a special coupon code to get 20% off – as well as post updates, other freebies and more! No spam guaranteed!

Thanks! Please check your email and click on the confirmation link! (Check spam folder too!) 🙂

Unit Converter

Insert the measurement that you want to convert and then press convert!

Centimeters (cm):
Millimeters (mm):
Inches (in):

You have successfully subscribed! Check your inbox now to confirm your subscription. (check junk mail too 😀)

Pin It on Pinterest