1、长 度 换 算（一）公 制中国市制英美制英 制公里(Kilometre)里哩(Mile)悝(Nauticalmile)10.51.609341.853213.21873.7040.62140.310711.15150.539670.269980.868421注 英制1里=6,080尺（实用上通常为6,000尺）=纬度的六十分之一。 英制1里（国际海里）=6,076尺（1954年7月1日起美国改用国际海里制）。1、长 度 换 算（二）公 制中国市制英 美 制米(公尺)(Meter)厘米（公分)(Centimeter)尺码(Yard)尺(Foot)寸(Inch)10.010.33330.91440.30480.0254100133.3391.4430.482.5430.0312.7430.91440.07621.0940.010940.364610.33330.02783.28080.032811.094310.083339.370.393713.123361213、面（地）积换算（一）公制中国市制英美制公制中国市制英美制平方公里 (Sqare kilometre)平方里平方哩(Sqaremile)公顷(Hectare)公亩(Are)亩英亩(Acre)1 0.252.590.010.00010.000670.004054 110.360.040.00040.0.0.3861 0.096510.0.0.0.00156100 2525910.010.06670.404710,000 2,50025,90010016.66740.4691,500 3753,885150.1516.07247.105 61.786402.4710.02470.1651注1公顷=100米的平方=10，000平方米。1公亩=10米的平方=100平方米。3、面（地）积换算（二）公制英美制中国市制平 方 米(Sqare metre)平方厘米(公分）(Sqare centimetre)平方码(Sqare yard)平方尺(Sqare foot)平方寸(Sqare inch)平方尺1 0.00010.836130.09290.000650.11110,000 18,361.27929.036.45161,111.1111.19599 0.0001210.111110.000770.13310.7639 0.00108910.006941.1961,550.0 0.1551,2961441172.2229 0.00097.5250.8360.005815、容（体）积换算（一）公制中国市制英制美制公升(Litre)升（英）加仑(Imperial gallon)（美）加仑 (US gallon)1 4.5463.7851 4.5463.7850.22 10.8330.264 1.20116、容（体）积换算（二）公制英美制中国市制立方米(Cubic metre)立方厘米(公分)(Cubic Centimetre)(c.c.)立方码(Cubic yard)立方尺(Cubic foot)立方寸(Cubic inch)立方尺 1 0.0.764560.028320.0.0371,000,000 1764,55528,317.01616.387137,0371.308 0.10.0370.000020.048435.3147 0.000042710.000581.30861,023.7 0.0610246,6561,72812,260.13727 0.20.6430.764550.0004417、重量换算（一）公制英制美制中国市制英制港制公制中国市制英美制公吨(Metric ton长吨(Long ton)短吨(Short ton)担英担(Hundred-weight)(Cwt.)司马担(Picul)公斤(Kilogram)斤磅(Pound)1 1.0160.90720.050.05080.06050.9842 10.89290.049210.050.059541.1023 1.1210.05510.0560.066720 20.3218.14411.0161.2119.684 2017.8570.984211.1916.535 16.8150.82670.840211,000 1,016.05907.25050.860.4810.50.45362,000 2,032.11,814.4100101.6120.96210.90722,204.62 2,2402,000110.23112133.332.20461.10231注港制1司马担=100司马斤公制1吨=10公担7、重量换算（二）公制英美制常衡英美制金衡或药衡中国市制公斤(Lilogram)克(公分)(Gram)磅(Pound)(盎司)(Ounce)磅(Pound)(盎司)(Ounce)两(十两制)(Troy or Apthecary)1 0.0010.453590.028350.373240.0.051,000 1453.59228.3495373.241831.1035502.20462 0.002210.06250.0.0.1102335.2736 0.16113.16571.1.763682. 0.1.0.10.083330.1339632.15072 0.0321514.0.1211.6075220 0.029.0720.5677.4650.6221注宝石：1克拉(Carat)=0.2克（公分）；1金衡 =155.5克拉。9、单位长度重量换算公制英美制中国市制公斤/米(Kilogram/Metre)磅/尺(Pound/Foot)磅/寸(Pound/Inch)斤/尺 1 1.48817.8581.50.672 1121.0080.056 0.08310.0840.667 0.99211.9051注小数点后第四位四舍五入10、单位面积产量换算公制英美制中国市制公斤/公顷(Kilogram/Hectare)英担/(Hundredweght/Acre)磅/(Pound/Acre)斤/亩1 125.5371.1217.50.008 10.0090.060.892 11216.6920.133 16.7380.1491注小数点后第四位四舍五入11、密度换算（一）公制英美制中国市制公斤/公升（公吨/立方米）(Kilogram/Litre)(Metric ton/Cubic metre)磅/立方尺(Pound/Cubic foot)磅/立方寸(Pound/Cubic inch)斤/立方尺1 0.01627.680.01462.428 11,7280.8430.036 0.000610.000574.074 1.1872,050.3631注除个别数字外，小数点后第四位均四舍五入12、密度换算（二）公制英美制中国市制克/公升 (Gram/Litre)/（英）加仑 (Ounce/Imperialgallon)/（美）加仑 (Ounce/USgallon)两/升1 6.2367.489500.160 11.2018.0180.134 0.83316.6760.02 0.1250.151注小数点后第四位四舍五入摄氏和华氏温度换算 华氏（Fahrenheit）=9/5+32. 摄氏(Celsius or Centigrade)=5/9(-32). 例如,将摄氏17度，换算成华氏度数。 其计算方法即为：179/5+32=153/5+32=30.6+32=62.6。即：摄氏17度等于华氏6206度。 又如，将华氏84度，换算成摄氏度数。其计算方法为：5/9(84-32)=5/952=260/9=28.9。即： 华氏84等于摄氏28.9度。27、能源换算“标准”煤（或用以制成的煤砖）（公吨）褐煤砖用褐煤制成的焦煤或沥青煤（公吨）褐煤 (公吨)用煤烟或无烟煤制成的焦碳（公吨）石（原）油（公吨）汽油、煤油、燃料油（公吨）天然气(立方米)电力(千瓦-1小时）原子能(铀235)(克)1 0.670.320.901.301.501.330.12531.49 10.481.341.942.241.990.194.483.13 2.0912.814.064.694.160.399.381.11 0.740.3611.441.671.480.143.330.77 0.520.250.6911.151.020.102.130.67 0.450.210.60.8710.890.082751.88 503.76240.60676.69977.441，127.821，00093.982，255.648，000 5，3602，5607，20010，40012，00010，6401，00024，0000.33 0.220.110.300.430.500.440.04128、石（原）油重量、容积换算国家或地区一公吨折合千