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Conversion Calculator

Our Boxed-Up stock boxes are measured and sold in inches. For those of you who aren't as old-school as us, below you will find a quick reference guide for converting your measurements across the imperial and metric systems. Not to worry though, all the stock box details will also be identified in millimetres on each product description for further reference!

To discover more about measuring your boxes or products, head over to our Packaging Guide for more information.

10 100 4
20 200 8
30 300 12
40 400 16

Determined the box size you require, why not use our Box Finder for a quick search to locate our nearest box size available from stock. If you require a secific box size we do not stock, why not Contact us to discuss your requirements.

measurement guide

Thousands of boxes supplied to clients throughout the UK


The one of the best box supplier in the UK I have ordered boxes from Boxed Up many times. They have great prices, very quick response time, next day delivery. What else can I say: The one of the best box supplier in the UK, Thank you

PNP Fragrance
PNP Fragrance

Regularly order from this company as the products and the service is excellent.

Katie Barker
Katie Barker

Good Sturdy Boxes We have been using Boxed Up for a few years now, and is an integral part of us meeting our customers' expectations. They offer a friendly and professional service. The only negative we have is that their new website has been 'coming s