Page 3 - Fair, Geyer, and Okun's Water and wastewater engineering : water supply and wastewater removal

JWCL344_ifc.qxd 8/26/10 8:31 PM Page 2
Equivalents*
Customary
Comments
Recommended Units
Symbol
METRIC CONVERSION TABLES
Unit
Description
1.094 yd Velocity 3.281 ft/s m/s meter per linear second 0.003281 ft/s mm/s millimeter in. 10 5 per second 2,237 mph or mi/h km/s kilometers per second 9.549 rpm rad/s radians per Angular second 0.6722 poundal(s)/ft 2 Pa-s pascal second Viscosity lb-s/ft 2 10 5 2.088 Z centipoise 0.0001450 lb/in. 2 N/m 2 newton per Pressure or or square meter stress Pa or pascal 0.14507 lb/in. 2 kN/m 2 kilonewton per or square meter acre ft 10 7 kPa or kilopascal 14.50 lb/in. 2 bar bar 32 ºF 1.8(ºC) ºC
Customary Equivalents* 3.281 ft 0.6214 mi 0.03937 in. 3.937 Å 10 4 1 10.76 ft 2 1.196 yd 2 0.3861 mi 2 247.1 acres 0.001550 in. 2 2.471 acres 35.31 ft 3 1.308 yd 3 1.057 qt 0.2642 gal 8.107 2.205 lb 0.03527 oz 15.43 grains 0.01543 grains 0.9842 ton (long) 1,000 kg 1.102 ton (short) 0.2248 lb 7.233 poundals

Recommended Units Comments Symbol Basic SI unit m km mm mm or m m 2 km 2 mm 2 The hectare (10,000 ha m 2 ) is a recognized multiple unit and will remain in international use. m 3 L Basic SI unit kg g mg 1 tonne t The newton is that N force that produces an acceleration of in a mass 1 m/s 2 of 1 kg.

Unit meter kilometer millimeter micrometer or micron square meter square kilometer square millimeter hectare cubic meter liter kilogram gram milligram tonne newton

Description Length Area Volume Mass Force