A5 size paper (148 x 210 mm) is widely available from major office supply retailers, specialty stationery shops, and online marketplaces. Depending on your needs, you can find it in various formats: Printer & Multi-Purpose Paper

Smooth, buttery paper ideal for assignments and reports, found at MUJI USA .

Deepcraff 500 Sheets A5 White Multipurpose Printing Paper for Inkjet Printers, Double-Sided, Walmart - Agracle Go to product viewer dialog for this item.

Extra-white, ultra-smooth 90gsm paper that is highly popular with fountain pen users, available at The Goulet Pen Company . Original Crown Mill Pure Cotton Writing Pad A5 The Goulet Pen Company& more Go to product viewer dialog for this item.

A premium quality specialty-sized paper available at Bindertek . A5 White Paper 24lb A4 Supplies Go to product viewer dialog for this item.

Premium White A5 Paper - 24lb paper perfect for Printing, Binders and More! 100 Sheets michaels.com Go to product viewer dialog for this item.

Tomoe River S A5 Loose Leaf Paper - 52gsm 100 Blank Sheets for Fountain Pens Etsy - Seller Go to product viewer dialog for this item.

A full ream of unpunched office paper available at A4 Supplies .