小学館 ランダムハウス英和大辞典 第2版

換算表

[１] 長さの換算表（linear measure）

• 1 inch (in.) = 0.0833ft. = 2.540cm
• 1 foot (ft.) = 12in. = 0.3048m
• 1 yard (yd.) = 3ft. = 0.9144m
• 1 rod (rd.) = 5 1/2yd. = 5.029m
• 1 chain (ch.) = 22yd. = 20.12m
• 1 furlong (fur.) = 10ch. = 0.2012km
• 1 mile (mi., mil) = 8fur. = 1,760yd. = 1.609km

• 1 millimeter (mm) = 0.039in.
• 1 centimeter (cm) = 10mm = 0.3937in.
• 1 decimeter (dm) = 10cm = 3.937in.
• 1 meter (m) = 100cm = 39.37in.
• 1 decameter (dam) = 10m = 10.94yd.
• 1 hectometer (hm) = 100m = 109.4yd.
• 1 kilometer (km) = 1,000m = 0.6214mil.

[２] 面積の換算表（square measure）

• 1 square inch (sq. in.) = 6.4516cm²
• 1 square foot (sq. ft.) = 144in² = 0.0929m²
• 1 square yard (sq. yd.) = 9.105ft² = 0.8361m²
• 1 square rod (sq. rd.) = 30 1/4yd² = 25.293m²
• 1 square chain (sq. ch.) = 16rod² = 404.67m²
• 1 acre (A) = 10ch² ( = 4,840yd²) = 4,046.7m²
• 1 square mile (sq. mil.) = 640A = 2.5900km²

• 1 square millimeter (mm²) = 0.00155in²
• 1 square centimeter (cm²) = 100mm² = 0.1550in²
• 1 square meter (m²) = 10,000cm² = 1.196yd² ( = 0.3025坪)
• 1 are (a) = 100m² = 119.6yd² ( = 30.25坪)
• 1 hectare (ha) = 10,000m² ( = 100a) = 2.471A
• 1 square kilometer (km²) = 100ha = 247.114A

[３] 体積の換算表（cubic measure）

• 1 cubic inch (cu. in.) = 16.387cm³
• 1 cubic foot (cu. ft.) =1,728in³ = 0.02832m³ ( = 28.32dm³)
• 1 cubic yard (cu. yd.) = 27ft³ = 0.7646m³

• 1 cord (cd.) = 128ft³ = 3.6246m³
• 1 cubic centimeter (cm³) = 0.06102in³
• 1 cubic decimeter (dm³) = 1,000cm³ = 0.03532ft³
• 1 cubic meter (m³) = 1,000dm³ = 1.308yd³

[４] 重さの換算表（avoirdupois）

• 1 grain (gr.) = 64.8mg
• 1 dram (dr. avdp.) = 27.3438gr. = 1.7717g
• 1 ounce (oz.) = 16dr. = 28.3495g
• 1 pound (lb.) = 16oz. = 0.4536kg
• 1 stone (st.) = 14lb. = 6.350kg
• 1 quarter (qr.) = 2st. = 12.70kg
• 1 hundredweight (cwt.)
  = ((米)) 100lb. ( = 45.36kg)
  = ((英)) 112lb. ( = 50.86kg)
• 1 (short) ton (t.) = 2,000lb. = 0.9072tonne
• 1 (long) ton = 20cwt. = 1.016tonne

• 1 milligram (mg) = 0.015gr.
• 1 centigram (g) = 10mg = 0.154gr.
• 1 decigram (dg) = 100mg = 1.543gr.
• 1 gram (g) = 10dg = 15.43gr. ( = 0.035 oz.)
• 1 decagram (dag) = 10g = 0.353oz.
• 1 hectogram (hg) = 10dag = 3.527oz.
• 1 kilogram (kg) = 10hg = 2.2046lb.
• 1 tonne (M.T.) = 1,000kg = 1.1023 (shot) ton ( = 2,204.62 lb.) = 0.984 (long) ton

[５] 容積の換算表（capacity measure）

• 1 fluid ounce (fluid oz.)
  = ((米)) 29.57cm³
  = ((英)) 28.41cm³
• 1 gill (gi.)
  = ((米)) 4fluid oz. ( = 0.118dm³)
  = ((英)) 5fluid oz. ( = 0.142dm³)
• 1 pint (pt.) = 4gi.
  = ((米)) 0.4732dm³
  = ((英)) 0.5683dm³
• 1 quart (qt.) = 2pt.
  = ((米)) 0.9464dm³
  = ((英)) 1.137dm³

• 1 gallon (gal.) = 4qt.
  = ((米)) 231in³ ( = 3.785dm³)
  = ((英)) 277.42in³ ( = 4.546dm³)
• 1 bushel (bu.) = 8gal.
  = ((米)) 35.24dm³
  = ((英)) 36.37dm³
• 1 milliliter (ml) = 0.00176pt.
• 1 centimeter (cl) = 10ml = 0.0176pt. = 0.338fluid oz.
• 1 deciliter (dl) = 10cl = 0.176pt.
• 1 liter (l) = 10dl
  = 0.264 米gal.
  = 0.220 英gal.
• 1 decaliter (dal) = 10l = 2.20 英gal.
• 1 hectoliter (hl) = 10dal = 22.0 英gal.
• 1 kiloliter (kl) = 10hl = 220.0 英gal.

[６] 数字を示す接頭辞

• tera-(T) = 10¹²
• giga-(G) = 10⁹
• mega-(M) = 10⁶
• kilo-(k) = 10³
• hecto-(h) = 10²
• deca-(da) = 10
• deci-(d) = 10^-1
• centi-(c) = 10^-2
• milli-(m) = 10^-3
• micro-(μ) = 10^-6
• nano-(n) = 10^-9
• pico-(p) = 10^-12
• femto-(f) = 10^-15
• atto-(a) = 10^-18

[７] 温度計