Metric/American Conversion

Linear

Exact Conversions:	Approximate Conversions:	Exact Conversions:
1 m = 1000 mm 1 m = 100 cm 1000 m = 1 km	1 m ─► 3.2808 ft     0.3048 m ◄─ 1 ft 1 m ─► 1.0936 yd     0.9144 m ◄─ 1 yd 1 cm ─► 0.3937 in     2.54 cm ◄─ 1 in 1 km ─► 0.6214 miles     1.6093 km ◄─ 1 mile	12 in = 1 ft 3 ft = 1 yd 5280 ft = 1 mile 1760 yd = 1 mile

Additional Linear Measures: http://www.metric4us.com/calculator.html

• mils, 1000 mils = 1 in
   
• points, 72.2700 points ≈ 1 in
   
• hands, 1 hand = 4 in
• fathoms, 1 fathom = 18 hands (or 6 ft)
   
• links, 100 links = 22 yd (so, 1 link ≈ 7.92 in)
• rods, 1 rod = 25 links (or 16.5 ft)
  • pole, 1 pole = 1 rod
  • perch, 1 perch = 1 rod
• chain, 1 chain = 100 links (so, 1 chain = 4 rods = 22 yd)
• furlong, 1 furlong = 10 chains (or 220 yd, 1000 links) also 8 furlongs = 1 mile
   
• nautical mile (1 nautical mile ≈ 1.15080 mile )
   
• leagues (1 league = 3 miles)
   
• The whole gamut of metric prefixes: yoctometer (10^-24) to yottameter (10²⁴). (Wikipedia)
• Astronomic Unit (au): the average distance between the center of the sun and center of the earth; approximately 1.49598 × 10⁸ km (9.3 × 10⁷ miles).
• Light-Year: the distance light travels (in a vacuum) in one year; 63,239.6717 au
• Parsec: this distance from the sun where parallax, as seen from earth, is 1 second of an arc; (3.26163626 light-years)

[Fluid] Volume

Exact Conversions:	Approximate Conversions:	Exact Conversions:
1 l = 1000 ml [1 ml = 1 cu cm]	1 ml ─► 0.2029 tsp     4.9289 ml ◄─ 1 tsp     29.5735 ml ◄─ 1 fl oz 1 l ─► 0.2642 gallons     3.7854 l ◄─ 1 gallon	3 tsp = 1 tbsp 2 tbsp = 1 fl oz 8 fl oz = 1 cup 2 cups = 1 pint 2 pints = 1 quart 4 quarts = 1 gallon 1 gallon = 128 fl oz 1 gallon = 231 cu in

http://www.metric4us.com/calculator.html

[Dry] Volume

Exact Conversions:	Approximate Conversions:	Exact Conversions:
1,000,000 cu cm = 1 cu m [1 ml = 1 cu cm]	1 cu m ─► 1.3079 cu yd     0.7646 cu m ◄─ 1 cu yd	1,728 cu in = 1 cu ft 27 cu ft = 1 cu yd

http://www.metric4us.com/calculator.html

1 [dry] pint	≈	1.1636 [fluid] pints
2 [dry] pint	=	1 [dry] quart (≈ 1.1636 [fluid] quarts)
8 [dry] quarts	=	1 peck (pk) (≈ 2.3273 gallons)
4 pecks (pk)	=	1 bushel (bu) (≈ 1.2445 cu ft)

Mass/Weight

Exact Conversions:	Approximate Conversions:	Exact Conversions:
1 g = 1000 mg 1000 g = 1 kg 1000 kg = 1 [metric] ton	1 g ─► 0.035274 oz   28.3495 g ◄─ 1 oz 1 kg ─► 2.2046 lbs   0.4536 kg ◄─ 1 lbs 1 [metric] ton ─► 1.1023 short ton   0.9072 [metric] ton ◄─ 1 short ton 1 [metric] ton ─► 0.9842 long ton   1.0160 [metric] ton ◄─ 1 long ton	16 oz = 1 lbs 2000 lbs = 1 ton (short) 2240 lbs = 1 ton (long)

http://www.metric4us.com/calculator.html

Area

http://www.metric4us.com/calculator.html

Temperature

Conversion Formulas:
Fahrenheit := Celsius × 9 ÷ 5 + 32
Celsius := (Fahrenheit − 32) × 5 ÷ 9
Kelvin :≈ Celsius + 273.15

Time

Exact Conversions:

1 sec = 1000 msec (milliseconds) 1 min = 60 sec 1 hr = 60 min 1 day = 24 hr 1 week = 7 days 1 year = 365 days 1 leap year = 366 days 1 fortnight = 14 nights (2 weeks) 1 month = number of days… Month #days January 31 days Febuary 28 days, during non-leap years; 29 days, during leap years March 31 days April 30 days May 31 days June 30 days July 31 days August 31 days September 30 days October 31 days November 30 days December 31 days 1 quarter = ¼ year, i.e. 3 months 1 decade = 10 years 1 century = 100 years 1 millennium = 1000 years season era age eon tithi (Lunar Day) Ship's Bells (½ hr measures over watches)

Metric (SI) Prefixes