Einheitenumrechnung vom englisch-amerikanische Einheitensystem (FPS) in das SI-Einheitensystem (MKS) Einheit Länge: Fläche: Größe 1 1 1 1 1 in² 1 1 1 1 Inhalt/Volumen: Dimension FPS in ft = 12 in yard = 3 ft mile (statue) Seemeile ft² yard² = 9 ft² mile² acre 1 in³ 1 1 1 1 1 1 1 1 1 1 1 1 ft³ yard³ gal (brit.) gal (USA) = 4 quarts quarter (brit.) = 64 gal Petr. barrel = 42 gal quart (USA) = 2 pints bushel (USA) bushel (brit.) = 8 gal ft³/lb ft³ (60°F, 30 in moist) ft³ (60°F, 30 in dry) = = = = = Größe 2,54 0,3048 0,9144 1,60934 1,85318 Dimension SI cm m m km km = = = = = = = 6,4516 0,00065 0,0929 0,836 2,59 0,4047 40,47 cm² m² m² m² km² ha a = = = = = = = = = = = = = = 16,387 0,01639 28,317 0,7646 4,546 3,785 290,9 0,15876 0,946 35,242 36,37 0,06243 0,02635 0,02687 cm³ dm³ dm³ m³ l l l m³ dm³ l l m³/kg Nm³ Nm³ = = = 4,448 N 0,278 N 0,13826 N = = = = = = = = = = = 28,349 0,06479 0,45359 12,701 1016 907,2 16,0185 0,1426 2,2884 0,3503 18,3 g g kg kg kg kg kg/m³ g/kg g/m³ g/m³ m³/hm³ 0,508 1,60934 1,852 0,514 cm/s km/h km/h m/s Kraft: 1 lbf 1 oz = 1/16 lbf 1 pdl Masse: 1 1 1 1 1 1 1 1 1 1 1 Geschwindigkeit: 1 ft/min 1 mph 1 Kn = = = = Volumenstrom: 1 gal/min (USA) = GPM 1 gal/min (brit.) = CFM 1 ft³/min = = = = = oz (av) = 1/16 lb grain lb (av) = 16 oz = 7000 grains quarter (brit.) = 28 lb long ton (brit.) short ton (USA) = 2000 lb lb/ft³ grain/lb grain/ft³ ton/mile² cbf/ft² 1 SCFM = stand. ft³/min Bezugspunkt: 100 psi/70°F Massenstrom: 1 lb/min = Druck: 1 lbf/ft² = = = = = 1 pdl/ft² 1 lbf/in² = psi thermo-technik Müller GmbH lbf = lb (force) 0,227 m³/h 0,273 m³/h 28,317 l/min 1,7 m³/h 10,7272 Nm³/h Bezugspunkt: 1,013 bar/273 °K 27,216 kg/h 47,88 0,4788 0,047 1,48816 68,9476 Einheit.xls FPS > SI N/m²=Pa mbar mm H2O N/m² mbar Seite 1/2 Einheitenumrechnung vom englisch-amerikanische Einheitensystem (FPS) in das SI-Einheitensystem (MKS) Einheit Größe Dimension FPS Druck: Größe 703,1 33,8639 345,316 2,49089 25,4 29,89 304,8 1,013 Dimension SI mm H2O mbar mm H2O mbar mm H2O mbar mm H2O bar 1 atm = = = = = = = = Druck, längenbez. 1 in H2O/100 ft 1 ft H2O/100 ft 1 psi/100 ft = = = Energie: 1 1 1 1 1 = = = = = = 1,05506 1,35582 0,04214 2685 0,1055 29,288 Leistung: 1 BTU/h 1 ft lbf/s 1 hp = = = 0,2931 W 1,35582 W 0,7457 kW Enthalpie und Entropie: 1 BTU/ft³ 1 BTU/lb 1 BTU/F = = = Spez. Wärme: 1 BTU/lb F 1 BTU/ft³ F = = Wärme: 1 1 1 1 1 1 1 1 = = = = = = = = Kälte: 1 tons of refrigeration = 3,517 kW Heizung: 1 HP (boiler) = 33 475 BTU EDR (steam) EDR (water) = = = 9,809 kW 70,34 W 43,97 W Viskosität: 1 cSt = Kraft-/Dreh-/Biegemoment: 1 in lbf 1 ft lbf = = Beschleunigung: 1 ft/s² 1g = = 1 in Hg 1 in H2O 1 ft H2O Temperatur BTU ft lbf ft pdl hp h therm = 100 000 BTU BTU/ft² BTU/h ft² BTU/h ft² F BTU/h ft F BTU in/h ft² F h ft² F/BTU h ft F/BTU h ft² F/BTU in 5/9 °F + 255,38 5/9 °F - 17,77 thermo-technik Müller GmbH 8,176 N/m² m 98,1 N/m² m 2,262 mbar/m kJ J J kJ GJ kWh 37,26 kJ/m³ 2,3244 kJ/kg 1,899 kJ/K 4,187 kJ/kgK 67,07 kJ/m³K 11,357 3,155 5,678 1,7296 0,1442 0,1761 0,5782 6,934 kJ/m² W/m² W/m²K W/mK W/mK m²K/W mK/W mK/W 1 mm²/s EDR = Equivalent Direct Radiation kinem. Viskosität 0,113 Nm 1,35582 Nm 0,3048 m/s² 9,81 m/s² = = Einheit.xls FPS > SI Erdbeschleunigung °K °C Seite 2/2