Energía
Acerca de Energia Conversion
Energia es el/la capacity un/una do trabajar, one of el/la la mayoria fundamental concepts in physics y esencial un/una understanding everything desde nutrition un/una nuclear power. It appears in muchos forms—kinetic, potential, thermal, electrical, chemical, y nuclear—y puede be convertido desde one form un/una otro pero never created o destroyed (conservation of energy).
Different fields usar diferente energy unidades based on historical development y practico convenience: joules (J) in physics y engineering, calories in nutrition y chemistry, kilowatt-horas (kWh) for electricity billing, BTU (British Thermal Units) for heating y cooling in el/la US, y electronvolts (eV) in atomic y particle physics.
Our energy converter handles todo comun unidades across cientifico, nutritional, y practico aplicaciones, making eso facil un/una compare energy costs, entender food labels, o trabajar through physics problems.
Common Energia Conversions
| Desde | A | Multiplicar por |
|---|---|---|
| Joules | Calories (small) | 0.2390 |
| Calories (small) | Joules | 4.184 |
| kWh | Joules | 3,600,000 |
| Joules | kWh | 2.778×10⁻⁷ |
| BTU | Joules | 1,055 |
| kWh | BTU | 3,412 |
| kcal (food cal) | kJ | 4.184 |
| Watt-horas | Joules | 3,600 |
| eV | Joules | 1.602×10⁻¹⁹ |
| Therms | BTU | 100,000 |
Energia Unidad Reference
Joule (J) – El/La SI unidad of energy, defined as 1 newton-metro o 1 watt-segundo. Named after James Prescott Joule. Used universally in physics y engineering for todo energy calculos.
Kilojoule (kJ) – 1,000 joules. Common in nutrition labels outside el/la US (food energy es often shown in ambos kJ y kcal). 1 kcal = 4.184 kJ.
Calorie (cal) – Small calorie: el/la energy needed un/una heat 1 gramo of water by 1°C. 1 cal = 4.184 J exactamente (thermochemical calorie). Used in chemistry y physics.
Kilocalorie (kcal) – Food calorie: el/la energy un/una heat 1 kilogramo of water by 1°C. 1 kcal = 4,184 J = 4.184 kJ. This es que nutrition labels call un/una "Calorie" (with capital C).
Kilowatt-hora (kWh) – Energia consumed by 1 kilowatt of power over 1 hora. El/La estandar unidad for electricity billing worldwide. 1 kWh = 3.6 MJ = 3,600,000 J exactamente.
BTU (British Thermal Unidad) – Energia needed un/una heat 1 libra of water by 1°F. Used for heating, cooling, y fuel content in el/la US. 1 BTU ≈ 1,055 J. Air conditioners son rated in BTU/hora.
Electronvolt (eV) – El/La energy gained by un/una electron accelerating through un/una potential difference of 1 volt. 1 eV = 1.602×10⁻¹⁹ J. Used in atomic, nuclear, y particle physics for su convenient scale.
Therm – Natural gas billing unidad equal un/una 100,000 BTU ≈ 105.5 MJ. Used by gas utilities, especially in el/la US y UK.
Aprende mas
Explore nuestro in-depth guias on esto topic:
Artículos Relacionados
Nuclear vs Fossil Fuel Energia: Comparing Potencia Sources
Compare el/la energy density y output of nuclear versus fossil fuels—desde uranium's incredible density un/una coal's widespread usar.
Leer másRenewable Energia Measurements: Solar, Wind, y More
Learn como renewable energy es medido—desde solar panel wattage un/una wind turbine capacity factors y grid-scale storage.
Leer másHistoria of Energia Measurement: Desde Horsepower un/una Joules
Explore como humanity developed maneras un/una medir energy—desde James Watt's horsepower un/una el/la modern joule y calorie.
Leer más