**Present Units** |
**Conv. Factor** |
**Metric (SI) Units** |

**Dimensions:** |

foot
inch |
X 0.3048
X 25.4 |
= m (meter)
= mm (millimeter) |

**Mass:** |

pound
ounce
grain |
X 0.3048
X 0.453 59
X 0.028 35
X 0.064 799 |
= kg (kilogram)
= kg
= g (gram) |

**Time:** |

minute |
X 60 |
= s (second) |

**Temperature:** |

Fahrenheit
Celcius
Fahrenheit |
(�F + 459.67) � 1.8
�C + 273.15
�F - (32 � 1.8) |
= K (Kelvin)
= K
= �C (Celcius) |

**Flow:** |

cfm
lbs/hour |
X 0.000 471 95
X 0.000 126 |
= m�/s
= kg/s |

**Density:** |

lbs/cu.ft. |
X 16.018 46 |
= kg/m� |

**Force:** |

pounds force |
X 4.448 22 |
= N (Newton) = kg m/s� |

**Pressure:** |

in. w.g.
mm w.g.
in. Hg
oz/sq.in.
lb/sq.in.
atmosphere |
X 0.248 36
X 6.308 34
X 3.386 39
X 0.430 92
X 6.894 76
X 101.325 |
= kPa (kilo Pascal) = kN/m�
= kPa
= kPa
= kPa
= kPa
= kPa |

**Energy, Work:** |

ft.lb.
BTU
kW hour
HP hour |
X 1.355 82
X 1.055 06
X 3600
X 2684.52 |
= J (Joule) = Nm
= kJ (kilo Joule)
= kJ
= kJ |

**Power, Heat Flow::** |

BTU/hr
HP
ton of refr. |
X 0.293 07
X 0.7457
X 3.516 85 |
= W (Watt)
= kW (kilo Watt)
= kW |

**Angles:** |

degrees |
X pi � 180 |
= rad (radian) |

**Speed:** |

RPM
RPM |
� 60
X 2pi � 60 |
= r/s (revolutions/s)
= rad/s |

**Tip Speed:** |

ft. per min. |
X 0.005 08 |
= m/s |

**Velocity:** |

fpm |
X 0.005 08 |
= m/s |

**Acceleration:** |

ft/s�
32.2 ft/s� |
X 0.3048
X 9.806 65 |
= m/s�
= m/s� |

**Torque:** |

lb. in.
lb. ft. |
X 0.112 98
X 1.355 82 |
= N m
= N m |

**Moment of Inertia (WK�):** |

lbs. ft.� |
X 0.042 14 |
= kg m� |

**Stress:** |

PSI |
X 6.894 76 |
= kPa |

**Area:** |

sq. ft.
sq. in. |
X 0.092 903
X 645.16 |
= m�
= mm� |

**Volume:** |

cu. ft.
cu. in. |
X 0.028 317
X 16.387 06 |
= m�
= cm� |