FACTORES DE CONVERSIÓN MÉTRICO - INGLÉS

 Fuerza

1 lbf = 32.174 lbm.pie/s2 = 4.44822 N1 N = 0.22481 lbf

 Longitud

1 m = 39.370 plg = 3.2808 pie = 1.0926 yd1 pie = 12 plg = 0.3048 m1 milla = 5,280 pie = 1.6093 km1 plg = 2.54 cm

 Masa

1 kg = 2.2046226 lbm

1 lbm = 0.45359237 kg1 onza = 28.3495 kg1 slug = 32.174 lbm = 14.5939 kg1 ton corta = 2,000 lbm = 907.1847 kg

 Presión

1 Pa = 1.4504x10-4 psia = 0.020886 lbf/pie2

1 psi = 144 lbf/pie2 = 6.894757 kPa1 atm = 14.696 psia = 29.92 pld Hg a 30°F1 plg Hg = 3.387 kPa

 Temperatura

T(R) = T(°F) + 459.67 = 1.8T(K)T(°F) = 1.8T(°C) + 32∆T(°F) = ∆T(R) = 1.8∆(K)

 Velocidad

1 m/s = 3.2808 pie/s = 2.237 mi/h1 mi/h = 1.46667 pie/s1 mi/h = 1.609 km/h

 Volumen

1 m3 = 6.1024x104 plg3 = 35.315 pie3 = 264.17 gal (US)1 U.S. galón = 231 plg3 = 3.7854 L1 gal (U.S.) = 128 fl oz

 Volumen especifico

1 m3/kg = 16.02 pie3/lbm

1 pie3/lbm = 0.062428 m3/kg

 Densidad

1 g/cm3 = 1 kg/L = 1,000 kg/m3 = 62.428 lbm/pie3  1 lbm/plg3 = 1,728 lbm/pie3

1 kg/m3 = 0.062428 lbm/pie3

 Aceleración

1 m/s2 = 100 cm/s2 = 3.2808 pie/s2

1 pie/s2 = 0.3048 m/s2

 Área

1 m2 = 104 cm2 = 106 mm2 = 10-6 Km2 = 1,550 plg2 = 10.764 pie2

1 pie2 = 144 plg2 = 0.09290304 m2

 Calor específico

1 kJ/(kg.°C) = 1 kJ/(kg.°K) = 1 J/(g.°C)1 Btu/(lbm.°F) = 4.1868 kJ/(kg.°C)1 Btu/(lbmol.°R) = 4.1868 kJ/(kmol.°K)1 kJ/(kg.°C) = 0.23885 Btu/(lbm.°F) = 0.23885 Btu/(lbm.R)

 Velocidad generación calor

1 W/m3 = 0.09665 Btu/(h.pie3) 

Coeficiente de transferencia de calor1 W/(m2.°C) = 1 W/(m2.K) = 0.17612 Btu/(h.pie2.°F)

 Conductividad térmica

1 W/(m.°C) = 1 W/(m.K) = 0.57782 Btu/(h.pie.°F) 

Energía, calor, trabajo1 KJ = 1,000 J = 1,000 Nm = 1 kPa.m3 = 0.94782 Btu1 Btu = 1.055056 kJ = 5.40395 psia.pie3 = 778.169 lbf.pie1 Btu/lbm = 25,037 pie2/s2 = 2.326 kJ/kg1 kJ/kg = 1,000 m2/s2 = 0.430 Btu/lbm

1 kWh = 3,600 kJ = 3,412.14 Btu1 cal = 4.18688 J1 Kcal = 4.18688 kJ1 termia = 105 Btu = 1.055x105 kJ (gas natural)

 Energía, velocidad de transferencia de calor

1 kW = 1 kJ/s = 3,412.14 Btu/h = 737.56 lbf.pie/s1 kW = 1,000 W = 1.341 hp1 hp = 550 lbf.pie/s = 0.7068 Btu/s = 42.41 Btu/min = 2,544.5 Btu/h = 0.74570 kW = 745.7 W1 hp de caldera = 33.475 Btu/h

1 Bu/h = 1.055056 kJ/h1 ton de refrigeración = 200 Btu/min

 Flujo de calor

1 W/m2 = 0.3171 Btu/(h.pie2)1 W/cm2 = 104 W/m2