Customary unit atoms – OPC Unified Architecture

International customary units NOTE The unified U.S. and British Imperial customary units, so called "international" customary units
Symbol (c/s)	Display Name	Print Symbol	Kind of Quantity	Metric
[in_i]	inch	in	length	no
[ft_i]	foot	ft	length	no
[yd_i]	yard	yd	length	no
[mi_i]	mile	mile	length	no
[fth_i]	fathom	fth	depth of water	no
[nmi_i]	nautical mile	n mile	length	no
[kn_i]	knot	kn	velocity	no
[sin_i]	square inch	In2	area	no
[sft_i]	square foot	ft2	area	no
[syd_i]	square yard	yd2	area	no
[cin_i]	cubic inch	In3	volume	no
[cft_i]	cubic foot	ft3	volume	no
[cyd_i]	cubic yard	yd3	volume	no
[bf_i]	board foot	fbm	volume	no
[cr_i]	cord	cord	volume	no
[mil_i]	mil	mil	length	no
[cml_i]	circular mil	cmil	area	no
[hd_i]	hand		height of horses	no

Older U.S. "survey" lengths NOTE also called “statute” lengths
Symbol (c/s)	Display Name	Print Symbol	Kind of Quantity	Metric
[ft_us]	foot	ft (US survey)	length	no
[yd_us]	yard		length	no
[in_us]	inch		length	no
[rd_us]	rod		length	no
[ch_us]	Gunter's chain, Surveyor's chain		length	no
[lk_us]	link for Gunter's chain		length	no
[rch_us]	Ramden's chain, Engineer's chain		length	no
[rlk_us]	link for Ramden's chain		length	no
[fth_us]	fathom		length	no
[fur_us]	furlong		length	no
[mi_us]	mile	mi (US survey)	length	no
[acr_us]	acre		area	no
[srd_us]	square rod		area	no
[smi_us]	square mile	Mi2 (US survey)	area	no
[sct]	section		area	no
[twp]	township		area	no
[mil_us]	mil		length	no

U.S. volumes NOTE Including so-called “dry measures”
Symbol (c/s)	Display Name	Print Symbol	Kind of Quantity	Metric
[gal_us]	Queen Anne's wine gallon		fluid volume	no
[bbl_us]	barrel	barrel (US)	fluid volume	no
[qt_us]	quart	liq qt (US)	fluid volume	no
[pt_us]	pint	liq pt (US)	fluid volume	no
[gil_us]	gill	gi (US)	fluid volume	no
[foz_us]	fluid ounce	fl oz (US)	fluid volume	no
[fdr_us]	fluid dram		fluid volume	no
[min_us]	minim		fluid volume	no
[crd_us]	cord		fluid volume	no
[bu_us]	bushel		dry volume	no
[gal_wi]	historical winchester gallon		dry volume	no
[pk_us]	peck		dry volume	no
[dqt_us]	dry quart		dry volume	no
[dpt_us]	dry pint		dry volume	no
[tbs_us]	tablespoon		volume	no
[tsp_us]	teaspoon		volume	no
[cup_us]	cup		volume	no
[foz_m]	metric fluid ounce		fluid volume	no
[cup_m]	metric cup		volume	no
[tsp_m]	metric teaspoon		volume	no
[tbs_m]	metric tablespoon		volume	no

Avoirdupois weights
Symbol (c/s)	Display Name	Print Symbol	Kind of Quantity	Metric
[gr]	grain		mass	no
[lb_av]	pound		mass	no
[oz_av]	ounce		mass	no
[dr_av]	dram		mass	no
[scwt_av]	short hundredweight, U.S. hundredweight		mass	no
[lcwt_av]	long hunderdweight, British hundredweight		mass	no
[ston_av]	short ton, U.S. ton		mass	no
[lton_av]	long ton, British ton		mass	no
[stone_av]	stone, British stone		mass	no