本表数据用于将英制单位通过换算系数换算成公制单位。 This table gives conversion factors to convert various units to their SI equivalents. It will not be very useful for people who prefer to use cgs or English units although it can be used to convert from SI to those systems. |
单位名称 Name |
英制单位 To convert from |
公制单位 to |
乘法系数 multiply by |
除法系数 divide by |
加速度 Acceleration | ft/sec^2 | m/s^2 | 0.3048 | 3.2810 |
面积 Area | acre | m^2 | 4047 | 2.471E-04 |
ft^2 | m^2 | 9.294E-02 | 10.7600 | |
hectare | m^2 | 1.000E+04 | 1.000E-04 | |
in^2 | m^2 | 6.452E-04 | 1550 | |
密度 Density | g/cm^3 | kg/m^3 | 1000 | 1.000E-03 |
lbm/ft^3 | kg/m^3 | 16.02 | 6.243E-02 | |
lbm/in^3 | kg/m^3 | 2.767E+04 | 3.614E-05 | |
lb*s^2/in^4 | kg/m^3 | 1.069E+07 | 9.357E-08 | |
slug/ft^3 | kg/m^3 | 515.40 | 1.940E-03 | |
能量 Energy | BTU | J | 1055 | 9.478E-04 |
cal | J | 4.1859 | 0.2389 | |
erg | J | 1.000E-07 | 1.000E+07 | |
ev | J | 1.602E-19 | 6.242E+18 | |
ft*lbf | J | 1.3557 | 0.7376 | |
kiloton TNT | J | 4.187E+12 | 2.388E-13 | |
kW*hr | J | 3.600E+06 | 2.778E-07 | |
megaton TNT | J | 4.187E+15 | 2.388E-16 | |
力 Force | dyne | N | 1.000E-05 | 1.000E+05 |
lbf | N | 4.4484 | 0.2248 | |
ozf | N | 0.2780 | 3.5968 | |
热容 Heat capacity | BTU/lbm*°F | J/kg*°C | 4188 | 2.388E-04 |
传热系数 Heat transfer coefficient | BTU/hr*ft^2*°F | W/m^2*°C | 5.6786 | 0.1761 |
长度 Length | AU | m | 1.496E+11 | 6.685E-12 |
ft | m | 0.3048 | 3.2810 | |
in | m | 2.540E-02 | 39.3700 | |
mile | m | 1609 | 6.214E-04 | |
Nautical mile | m | 1853 | 5.397E-04 | |
parsec | m | 3.085E+16 | 3.241E-17 | |
质量/重量 Mass | amu | kg | 1.661E-27 | 6.022E+26 |
lbm | kg | 0.4535 | 2.2050 | |
lb*s^2/in | kg | 1200.00 | 5.711E-03 | |
slug | kg | 14.59 | 6.853E-02 | |
质量流量率 Mass flow rate | lbm/hr | kg/s | 1.260E-04 | 7937 |
lbm/sec | kg/s | 0.4535 | 2.2050 | |
惯性矩 Moment of inertia | ft*lb*s^2 | kg*m^2 | 1.3557 | 0.7376 |
in*lb*s^2 | kg*m^2 | 0.1130 | 8.8510 | |
oz*in*s^2 | kg*m^2 | 7.062E-03 | 141.60 | |
功率 Power | BTU/hr | W | 0.2931 | 3.4120 |
hp | W | 745.71 | 1.341E-03 | |
tons of refrigeration | W | 3516 | 2.844E-04 | |
压力 Pressure | bar | Pa | 1.000E+05 | 1.000E-05 |
dyne/cm^2 | Pa | 0.1000 | 10.0000 | |
in. mercury | Pa | 3377 | 2.961E-04 | |
in. water | Pa | 248.82 | 4.019E-03 | |
kgf/cm^2 | Pa | 9.807E+04 | 1.020E-05 | |
lbf/ft^2 | Pa | 47.89 | 2.088E-02 | |
lbf/in^2 | Pa | 6897 | 1.450E-04 | |
mbar | Pa | 100.00 | 1.000E-02 | |
microns mercury | Pa | 0.1333 | 7.501 | |
mm mercury | Pa | 133.3 | 7.501E-03 | |
std atm | Pa | 1.013E+05 | 9.869E-06 | |
比热 Specific heat | BTU/lbm*°F | J/kg*°C | 4186 | 2.389E-04 |
cal/g*°C | J/kg*°C | 4186 | 2.389E-04 | |
温度 Temperature | °F | °C | 0.5556 | 1.8000 |
导热系数 Thermal conductivity | BTU/hr*ft*°F | W/m*°C | 1.7307 | 0.5778 |
BTU*in/hr*ft^2*°F | W/m*°C | 0.1442 | 6.9340 | |
cal/cm*s*°C | W/m*°C | 418.60 | 2.389E-03 | |
cal/ft*hr*°F | W/m*°C | 6.867E-03 | 145.62 | |
热扩散率 Thermal diffusivity | ft^2/day | m^2/day | 0.09290304 | 10.7639104 |
时间 Time | day | s | 8.640E+04 | 1.157E-05 |
sidereal year | s | 3.156E+07 | 3.169E-08 | |
力矩 Torque | ft*lbf | N*m | 1.3557 | 0.7376 |
in*lbf | N*m | 0.1130 | 8.8504 | |
in*ozf | N*m | 7.062E-03 | 141.61 | |
速率 Velocity | ft/min | m/s | 5.079E-03 | 196.90 |
ft/s | m/s | 0.3048 | 3.2810 | |
km/hr | m/s | 0.2778 | 3.6000 | |
miles/hr | m/s | 0.4470 | 2.2370 | |
绝对粘度 Viscosity - absolute | centipose | N*s/m^2 | 1.000E-03 | 1000 |
g/cm*s | N*s/m^2 | 0.1000 | 10 | |
lbf/ft^2*s | N*s/m^2 | 47.87 | 2.089E-02 | |
lbm/ft*s | N*s/m^2 | 1.4881 | 0.6720 | |
运动粘度 Viscosity - kinematic | centistoke | m^2/s | 1.000E-06 | 1.000E+06 |
ft^2/sec | m^2/s | 9.294E-02 | 10.7600 | |
体积/容积 Volume | ft^3 | m^3 | 2.831E-02 | 35.3200 |
in^3 | m^3 | 1.639E-05 | 6.102E+04 | |
liters | m^3 | 1.000E-03 | 1000 | |
U.S. gallons | m^3 | 3.785E-03 | 264.20 | |
体积流率 Volume flow rate | ft^3/min | m^3/s | 4.719E-04 | 2119 |
U.S. gallons/min | m^3/s | 6.309E-05 | 1.585E+04 |