Statistics for Common Engineering Unit Conversions

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Unit	Conversion	Answer	% Correct
1 ft	_ in	12	98%
1 in	_ cm	2.54	57%
1 mile	_ ft	5280	50%
1 in	_ ft	.083	33%
1 tonne	_ kg	1000	33%
1 gallon	_ quarts	4	29%
1 mile	_ km	1.61	26%
1 quart	_ pints	2	26%
1 ton	_ lbs	2000	24%
1 kg	_ lbs	2.2	24%
1 meter	_ ft	3.28	24%
1 cub. yd	_ cb. ft	27	21%
1 cubic meter	_ liters	1000	19%
1 hectare	_ sq. meters	10000	10%
1 sq. mile	_ acres	640	7%
1 tonne	_ tons	1.1	5%
Concrete	_ lb/ft^3	140	5%
1 bar	_ psi	14.5	5%
1 gallon	_ liters	3.79	5%
1 acre	_ sq ft	43560	5%
Water	_ lb/ft^3	62.4	5%
1 cubic ft water	_ lbs	62.4	5%
1 cubic ft	_ gallons	7.48	5%
1 gallon water	_ lbs	8.34	5%
Sand	_ lb/ft^3	100	2%
Gravel	_ lb/ft^3	105	2%
1 sq. meter	_ sq. ft	10.76	2%
1 bar	_ atm	14.7	2%
1 psi	_ ft water	2.31	2%
1 hectare	_ acres	2.47	2%
1 psi	_ inches water	27.1	2%
Wood	_ lb/ft^3	33	2%
1 BTU	_ Joule	1055.6	0%
Saw Dust	_ lb/ft^3	13.11	0%
1 kw	_ hp	1.34	0%
1 mpa	_ psi	145.04	0%
Wood Chips	_ lb/ft^3	23.72	0%
1 Hp	_ BTU/hr	2544.4	0%
1 Watt-hr	_ BTU	3.41	0%
Steel	_ lb/ft^3	493.18	0%
1 Hp	_ FT-Lb/sec	550	0%
1 BTU	_ FT-Lb	778.17	0%