Aspect Ratio Calculator & Jump Ring Size Finder

Aspect ratio (A.R.) for jump rings is the inner diameter (I.D.) of the ring divided by wire thickness.
EXAMPLE: 3/8" (0.375") I.D. ring of 16 gauge AWG (0.0508") wire would be: 0.375 / 0.0508 = 7.382 A.R.

Comprehensive aspect ratio charts can be found here
Measurement Conversion Charts can be found here
Metal Gauge Charts can be found here

JUMP RING ASPECT RATIO CALCULATOR
PRE-LOADED	MEASUREMENTS	UNITS
GAUGE:	Wire Diameter:
I.D.:	Inner Diameter:
Aspect Ratio:
PRE-LOADED combo boxes populate their respective MEASUREMENTS and UNITS. Otherwise, any changes to the MEASUREMENTS or UNITS will override PRE-LOADED values. UNITS need not be identical.

JUMP RING SIZE FINDER CALCULATOR
Desired Aspect Ratio		Sort Field
Percent Deviation +/-
Parameters		Inches	Millimeters
Gauge	Min
	Max
Inner Diameter	Min
	Max
I.D. Increments	SAE 1/16" 1/32" 1/64" 1/128"
	Millimeter 0.5mm 1.0mm
Include metric drawplate gauges under 1.0mm
Instructions: Enter Desired AR and Percent Deviation Select Min and Max Gauges, Min and Max Inner Diameters For other Diameters and Gauges, select the closest match using Inches and Millimeters text fields as guides Choose a Sort Field and I.D. Increments Check to include metric drawplate gauges or not All combinations of AWG, SWG, and metric gauges with SAE and metric inner diameters will be calculated according to the selected parameters.