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Ordnance Survey Map File Sizes

This article details the file sizes of each of our complete map products.

Most modern PCs and Laptops are fitted with large storage drives that can store hundreds of Gigabytes (GB) of data, however we always recommend that you check your system meets the space requirements for the relevant map product you are looking to purchase.

SD cards commonly use a file system that is referred to as FAT32, which limits the file size to 4GB. We recommend using the regional 1:25k maps, instead of the full GB 1:25k map if need to use an SD card.

2017 and 2018 Mapping

Map Product File Size
OS 1:50k Great Britain 2017/18 3.4GB
OS 1:25k Great Britain 2017/18 11.2GB
OS 1:25k Southern England 2017/18 2.2GB
OS 1:25k Central England 2017/18 2.4GB
OS 1:25k Wales 2017/18 1.4GB
OS 1:25k Northern England 2017/18 2.6GB
OS 1:25k Southern Scotland 2017/18 2.1GB
OS 1:25k Northern Scotland 2017/18 1.9GB
OS 1:10K Street Map 2017/18 8.9GB

2016 Mapping

Map Product Standard Definition File Size High Definition File Size
OS 1:50k Great Britain 2016 2.3GB 10.9GB
OS 1:25k Great Britain 2016 9.7GB 29.8GB
OS 1:25k Southern England 2016 1.8GB 3.88GB
OS 1:25k Central England 2016 1.9GB 3.53GB
OS 1:25k Wales 2016 1.3GB 2.58GB
OS 1:25k Northern England 2016 2.3GB 4.36GB
OS 1:25k Southern Scotland 2016 3.8GB 7GB
OS 1:25k Northern Scotland 2016 1.7GB 8.53GB
OS 1:10K Street View 2016 10.2GB Not Available

2015 Mapping

Map Product Standard Definition File Size High Definition File Size
OS 1:50k Great Britain 2015 2.16GB 6.08GB
OS 1:25k Great Britain 2015 7.44GB 25.7GB
OS 1:10k Streetview GB 2015 9.62GB Not Available

2014 Mapping

Map Product Standard Definition File Size High Definition File Size
OS 1:50k Great Britain 2014 2.15GB 11.1GB
OS 1:25k Great Britain 2014 7.43GB 28.5GB
OS 1:10k Streetview GB 2014 9.60GB Not Available