Golden Ratio Caliper Comparison

This is a comparison of all the Golden Ratio Calipers available on this site.

Everything is hand-made. If you need something unique, let us know – we can probably make it.

All calipers are made from solid 1.5mm thick stainless steel. All have different options for cases – if you’d like your own logo, or something unique, let us know.

Caliper	Description	Smallest measurement	Largest measurement	Price (USD)	Most often used by
Small Calipers	120mm or 4.5″ high – smallest of the 3-armed calipers	9.5mm or .37″	189mm or 7.5″	$65	Beauticians Artists working with detail, or smaller pieces Dentists (working with photos or screens) Craftspeople
Medium Calipers	180mm or 7.2″ high – the original design. Also available as a heavy-duty 2mm thick version (ask if you’d like these)	13.4mm or .57″	320mm or 12.8″	$85	Artists Luthiers Farriers Teachers / Education Dentists (working with photos or screens) Craftspeople
Large Calipers	320mm or 12.8″ high – These are the largest calipers I make – just over a foot long. People usually buy these as a set of three… because that way you get the small ones free (Set of 3 available here)	31mm or 1.24″	590mm or 23.2″	$75	Artists Teachers / Education (good for demonstration purposes)
Caliper	Description	Smallest measurement	Largest measurement	Price (USD)	Most often used by
Small 4-armed Calipers	120mm or 4.5″ high – these are made specifically for beauticians – the extra arm marks the mid-point between the eyebrows	9.5mm or .37″	189mm or 7.5″	$65	Beauticians
Circle Calipers	85mm or 3.3″ high – useful for measuring very small distances… right down to zero	0	94mm or 3.7″	$35	Jewellers Beauticians Artists working with very small detail Craftspeople
Phi Calipers	160mm or 6.3″ high – useful for measuring very small distances… right down to zero. They were developed specifically for use in cosmetic surgery, but have applications elsewhere	0	200mm or 7.8″	$125	Cosmetic surgeons Dentists Beauticians Artists working with small details
Caliper	Description	Smallest measurement	Largest measurement	Price (USD)	Most often used by
Protractors	160mm or 6.3″ high – useful for measuring acute angles – eg: under noses. They were developed specifically for use in cosmetic surgery, but have applications elsewhere	10°	160°	$85	Cosmetic surgeons Beauticians Engineers Forensic Balistics
10 Point Divders	245mm or 9.6″ high – for drawing perspective lines, and in navigation… anywhere where a distance needs to be divided into smaller equal-length distances	82mm or 3.2″ overall, smallest segment 8mm or .32″	265mm or 10.4″ overall, largest segment 26.4mm or 1.04″	$149	Artists Navigation