FANDOM


  • ENERGY AND MOTION
  • UNIT: WHAT IT MEASURES
  • bar/barye/pascal: pressure
  • dyne/newton/poundal: force
  • erg/joule/kilowatt-hour: work or energy
  • knot/mach: speed
  • watt: power
  • HEAT, LIGHT, AND SOUND
  • UNIT: WHAT IT MEASURES
  • angstrom: wavelength of light
  • calorie/therm: heat
  • candela: luminous intensity
  • decibel/phon: loudness
  • fresnel/hertz: frequency
  • kelvin: temperature
  • lumen: luminous flux, the rate of flow of luminous energy
  • ELECTRICITY AND MAGNETISM
  • UNIT: WHAT IT MEASURES
  • ampere: electric current
  • coulomb: electric charge
  • farad: electric capacitance, the capacity to store an electric charge
  • gauss/tesla: magnetic flux density, the direction and magnitude of magnetic force
  • henry: electric inductance, the property of enabling an electromagnetic force to be
  • generated
  • maxwell/weber: magnetic flux, the strength of a magnetic field through an area
  • oersted: magnetic field strength
  • ohm: electric resistance
  • siemens: electric conductance
  • volt: electric potential and electromotive force
  • ATOMIC PHYSICS
  • UNIT: WHAT IT MEASURES
  • becquerel/curie: radioactivity
  • dalton/AMU/atomic mass unit: mass of an isotope
  • rad/gray: energy absorbed from radiation
  • rem/REM: radiation dose
  • roentgen: X-rays or gamma rays
  • METRIC UNITS
  • UNIT: VALUE
  • grade: one-hundredth of a right angle
  • gram: about 0.002 pound avoirdupois
  • hectare: 100 ares, or 2.47 acres
  • micrometer/micron: 10 to the 6th meters, about 1/25,000 inch
  • stere: volume equivalent of 1 cubic meter
  • ton or metric ton: 10 quintals or 0.98421 long tons
  • IMPERIAL UNITS: LINEAR MEASURE
  • UNIT: VALUE
  • 1 cable: about 608 feet
  • 1 chain: 4 rods, 22 yards
  • 1 fathom: 6 feet
  • 1 furlong: 10 chains, 220 yards
  • 1 hand: 4 inches
  • 1 league: 3 nautical miles
  • 1 rod/1 pole/1 perch: 5 1/2 yards
  • IMPERIAL UNITS: LIQUID MEASURE
  • UNIT: VALUE
  • 1 barrel: 31 1/2 to 35 gallons
  • 1 firkin: 9 gallons
  • 1 fluid drachm: 60 minims 1/8 fluid ounce
  • 1 gill/noggin: 5 fluid ounces, 1/4 pint
  • 1 hogshead: 2 barrels
  • 1 minim: 1/480 fluid ounce
  • IMPERIAL UNITS: DRY MEASURE
  • UNIT: VALUE
  • 1 bushel: 4 pecks
  • 1 peck: 8 quarts
  • IMPERIAL UNITS: JEWELERS' WEIGHTS
  • UNIT: VALUE
  • 1 carat: 1/24 (4.1667%) gold
  • 1 grain: 1/480 ounce troy
  • 1 ounce troy: 1/12 pound troy, 1.097 ounces avoirdupois
  • IMPERIAL UNITS: AVOIRDUPOIS WEIGHTS
  • UNIT: VALUE
  • 1 dram: 27 11/32 grains, 1/16 ounce
  • 1 drachm: 3 scruples
  • 1 scruple: 20 grains
  • ARCHAIC AND FOREIGN UNITS
  • UNIT: VALUE
  • barleycorn: 1/3 inch
  • catty/kati: about 1 1/3 pounds (China)
  • crore: 10 million (India)
  • cubit: 18 to 21 inches
  • ell: 45 inches (cloth)
  • hide: 100 to 120 acres
  • kilderkin: about 18 gallons
  • lakh: 100,000 (India)
  • maund: about 82 pounds (India)
  • morgen: 2.116 acres (South Africa)
  • mutchkin: 0.9 pint (Scotland)
  • picul: 133.33 pounds (China)
  • pipe: 105 gallons (wine)
  • pood: 36.11 pounds (Russia)
  • rood: 1/4 acre
  • shekel: about 1/2 ounce (ancient Hebrew)
  • span: 9 inches; tip of thumb to tip of little finger or an extended hand
  • tael: usually 1 1/3 ounces (Asia)
  • tierce/terce: 42 wine gallons; about 33 gallons
  • verst: 0.6629 miles (Russia)
  • virgate: about 30 acres, about 1/4 acre

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