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Hitachi Lightning 9900™ User and Reference Guide 119
Appendix A Unit Conversions
Table A.1 provides unit conversions for the standard (U.S.) and metric measurement
systems.
Table A.1 Unit Conversions for Standard (U.S.) and Metric Measures
From Multiply By: To Get:
British thermal units (BTU) 0.251996 Kilocalories (kcal)
British thermal units (BTU) 0.000293018 Kilowatts (kW)
Inches (in) 2.54000508 Centimeters (cm)
Feet (ft) 0.3048006096 Meters (m)
Square feet (ft
2
) 0.09290341 Square meters (m
2
)
Cubic feet per minute (ft
3
/min) 0.028317016 Cubic meters per minute (m
3
/min)
Pound (lb) 0.4535924277 Kilogram (kg)
Kilocalories (kcal) 3.96832 British thermal units (BTU)
Kilocalories (kcal) 1.16279 × 10
-3
Kilowatts (kW)
Kilowatts (kW) 3412.08 British thermal units (BTU)
Kilowatts (kW) 859.828 Kilocalories (kcal)
Millimeters (mm) 0.03937 Inches (in)
Centimeters (cm) 0.3937 Inches (in)
Meters (m) 39.369996 Inches (in)
Meters (m) 3.280833 Feet (ft)
Square meters (m
2
) 10.76387 Square feet (ft
2
)
Cubic meters per minute (m
3
/min) 35.314445 Cubic feet per minute (ft
3
/min)
Kilograms (kg) 2.2046 Pounds (lb)
Ton (refrigerated) 12,000 BTUs per hour (BTU/hr)