Unidades Básicas
Longitud | - metros (m) |
Masa | - Kilogramos (Kg) |
Tiempo | - segundos (s) |
Temperatura | - grados (K) (temperatura termodinámica) |
Unidades Derivadas
Fuerza | - newton (N) |
Trabajo, energía calórica | - Joule (J) |
Poder | - watt (W) |
Presión | - Pascal (Pa) |
Unidades de Conversión (los valores exactos están en negras)
Longitud | |
1,0 m | = 100 cm = 1000 mm |
= 1,094 yardas = 39,37 pulgadas | |
= 3,2808 pies | |
1 Pie | = 0,3048 m |
1 Pulgada | = 2,54 cm = 25,4 mm |
Area | |
1m² | = 10,76 pies2= 1550,15 pulgadas2 |
1 Pie2 | = 0,09290304 m² |
1 Pulgada2 | = 6,4516cm² = 645,16mm² |
Volumen | |
1m³ | = 1.000 litros |
1 Pie3 | = 0,0283168 m³ = 28,3168 litros |
1 U.S. bushel (bu) | = 0,035239 m³ = 1,244 pies3 |
1 British bushel | = 1,032 U.S. bushel |
Masa | |
1,0 kg | = 1.000 9 = 2,2046 lb |
1 lb | = 0,45359237 kg |
1 metric | = 1 toneiada (Terminología (Sl) |
1 tonelada corta | = 20 U.S. cwt(hundredweight) |
= 2.000lb = 907,18474 kg = 0,90719 toneladas | |
1 tonelada larga | = 20 British cwt (hundredweight) |
= 2.240 lb = 1016,046908 kg | |
= 1,01605 toneladas | |
1 cwt (U.S.) | = 1001b |
1 cwt | = 1121b |
Temperatura | |
°C | = °K - 273,15 |
°K | = °C + 273,15 |
°C | = (°F-32)/1,8 |
°F | = (1,8 x°C) + 32 |
Térmico, Poder, Calor, Energía | |
1 J | = 0,239 cal |
1 cal | = 4,1868 J |
1 thermo -chemical cal | = 4,184 J |
1 Kj/Kg | = 0,23884 Kcal/kg = 0,4299 Btu/lb |
1 Btu | = 1,0551 Kj = 0,2520 Kcal |
1 Kcal | = 3,9683 Btu |
1 Kcal/kg | = 1,8 Btu/lb |
1 Kcal/kg °C | = 4,1868 Kj/kg °C = 1 Btu/lb °F |
1 KW hr | = 3.600 KJ |
1W | = 1J/s |
= 0,0569 Btu/min = 3,412 Btu/hr | |
= 0,239 cal/s | |
= 0,00134 hP | |
1 Kcal | = 1,163W |
1 hP | = 0,745700 KW |
1 KW | = 1,3410 hP = 1 Kj/s |
1 Btu/hr/Pie2/Pulgada °F | = 0,08333 Btu/hr/Pie2/Pie °F |
= 0,0003444 9. cal/sec cm °C | |
= 0,144228 W/m °C | |
Presión | |
1 Pa | = 1 N/m² |
N | = Kg m/s2 |
1mm H2O | = 9,80665 Pa |
= 1 mm de columna de agua (mm C.A.) | |
1 atm | = 760 mm H' = 101,325 Kpa |
= 29,92 Pulgadas Hg | |
1 bar | = 750 Hg |
Densidad | |
1 Ib/Pie3 | = 15,022 Kg/m³ |
1 Kg/m³ | = 0,0624 Ib/Pie3 |
Caudal | |
1 cfm/bu | = 0,80356 m³/m³ mio = 48,214 m³/m³ hr |
1 cfm/Pie3 | = 1,0 m³/m³ mio |
1 Pie3/min | = 1,699 m³/hr |
1 m³/m³ mio | = 1,24446 cfm/bu |
1 m³/m³ hr | = 0,020741 cfm/bu |
Temperatura normal T y Presión P (NTP) | |
T | = 273,15°K = 0°C |
P | = 101,325 KPa = 760 mm Hg |