# Appendices

## A.1. Unit Conversion Factor

 (a) Length 1 in = 2.54 cm 1 ft = 0.305 m 1 mi = 1.609 km 1 m = 3.281 ft 1 yd = 0.9144 m 1 km = 0.6214 mi = 1000 m 1 chain = 20.11 m 1 Eng. Ch. = 30 m (b) Area 1 sq in = 6.452 sq cm 1 sq ft = 0.0929 sq m 1 sq cm = 0.155 sq in 1 sq m = 10.76 sq ft = 1.094 sq yd 1 ac = 0.4047 ha = 4047 sq m = 43,560 sq ft 1 ha = 104 sq m = 2.471 ac 1 sq mi = 2.59 sq km = 640 ac 1 sq km = 100 ha = 0.3861 sq mi = 247 ac Table Continued

 (c) Volume 1 cu ft = 28.32 L = 6.24 imp gal = 7.48 US gal 1 Liter (L) = 1000 cu cm = 0.22 imp gal 1 cu m = 35.3147 cu ft = 1000 L = 220 gal 1 gal = 4.546 L 1 ac-ft = 43,560 cu ft = 0.1234 ha-m = 1234 cu m 1 cu km = 0.811 M ac-ft 1 ha-m = 104 cu m = 8.14 ac-ft = 0.35315 MCFT 1 M cu m = 100 ha-m (1 MCM) = 106 cu m = 814 ac-ft = 35.3147 MCFT (d) Discharge or ...

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