Aspect Ratio · Decoded

Welcome to your chainmaille workbench. Find the aspect ratio of a ring, work backwards from a weave, estimate a project, and price it out. Pick a tool to begin, or tap the title any time to come back here.

Free chainmaille aspect ratio calculator & weave finder

The Maillery is a free chainmaille calculator for jewelry makers and armorers. Enter your wire gauge (SWG or AWG) and a jump ring's inner diameter and it works out the aspect ratio (AR), then shows which weaves your rings will actually fit, from European 4-in-1 and box chain to Byzantine and Japanese. You can also lay out and chart color patterns ring by ring, turn an image into a ring pattern, track your ring stash, and estimate how many rings a project needs. It runs in your browser and works offline once added to your home screen on iPhone or Android.

What is aspect ratio (AR) in chainmaille?

Aspect ratio is a jump ring's inner diameter divided by its wire diameter (AR = ID ÷ wire). It describes how loose or tight a ring is and which weaves it can make. The Maillery calculates AR automatically from your wire gauge and ring size.

How do I find a weave my rings will fit?

Enter your ring's gauge and inner diameter. The app lists weaves whose ideal AR range your rings fall into and flags whether the fit is ideal, snug or loose, so you can see what's makeable before buying more rings.

What wire gauges does it support?

Both SWG and AWG standard wire diameters, entered in millimeters or inches. It converts between gauge, inner diameter and aspect ratio for you.

How many rings do I need for a project?

Use the pattern planner and estimator to count rings per color and get a total for a chain length or a flat sheet, then carry the count into pricing.

Does it work offline on my phone?

Yes. Add The Maillery to your home screen and it works offline on iPhone and Android, with your rings, patterns and projects saved on your device.