Note: Values may be rounded for display. Area of use values are in decimal degrees based upon WGS 1984.

Table 1: Linear units: well-known IDs and conversion values

Linear Unit of Measure Name	WKID	Conversion Value: Meters per Unit
150_Kilometers	109031	150000.0
50_Kilometers	109030	50000.0
Centimeter	109006	0.01
Chain	9097	20.1168
Chain_Benoit_1895_A	9052	20.1167824
Chain_Benoit_1895_B	9062	20.116782494375872
Chain_Clarke	9038	20.11661949
Chain_Sears	9042	20.116765121552632
Chain_Sears_1922_Truncated	9301	20.116756
Chain_US	9033	20.11684023368047
Decimeter	109005	0.1
Fathom	9014	1.8288
Foot	9002	0.3048
Foot_1865	9070	0.30480083333333335
Foot_Benoit_1895_A	9051	0.30479973333333332
Foot_Benoit_1895_B	9061	0.30479973476327077
Foot_British_1936	9095	0.3048007491
Foot_Clarke	9005	0.304797265
Foot_Gold_Coast	9094	0.30479971018150881
Foot_Indian	9080	0.30479951024814694
Foot_Indian_1937	9081	0.30479841
Foot_Indian_1962	9082	0.3047996
Foot_Indian_1975	9083	0.3047995
Foot_Sears	9041	0.3047994715386762
Foot_Sears_1922_Truncated	9300	0.30479933333333337
Foot_US	9003	0.30480060960121924
Inch	109008	0.0254
Inch_US	109009	0.025400050800101603
Kilometer	9036	1000.0
Link	9098	0.201168
Link_Benoit_1895_A	9053	0.201167824
Link_Benoit_1895_B	9063	0.20116782494375871
Link_Clarke	9039	0.2011661949
Link_Sears	9043	0.20116765121552629
Link_Sears_1922_Truncated	9302	0.20116756
Link_US	9034	0.20116840233680469
Meter	9001	1.0
Meter_German	9031	1.0000135965
Mile_US	9035	1609.3472186944375
Millimeter	109007	0.001
Nautical_Mile	9030	1852.0
Nautical_Mile_UK	109013	1853.184
Nautical_Mile_US	109012	1853.248
Rod	109010	5.0292
Rod_US	109011	5.0292100584201176
Smoot	109014	1.7018
Statute_Mile	9093	1609.344
Vara_US	109015	1.1811
Yard	9096	0.9144
Yard_Benoit_1895_A	9050	0.9143992
Yard_Benoit_1895_B	9060	0.91439920428981236
Yard_Clarke	9037	0.914391795
Yard_Indian	9084	0.91439853074444077
Yard_Indian_1937	9085	0.91439523
Yard_Indian_1962	9086	0.9143988
Yard_Indian_1975	9087	0.9143985
Yard_Sears	9040	0.91439841461602867
Yard_Sears_1922_Truncated	9099	0.914398
Yard_US	109002	0.91440182880365761