Energie a výkon Převodník

Převádějte mezi 15 různými jednotkami energie a výkon

1 J = kJ

Řídí formát zobrazení. Velmi malá nebo velmi velká čísla budou zobrazena ve vědecké notaci (např. 1,5e-6).

Dostupné jednotky

BTU

BTU

The BTU is the imperial unit for thermal energy, particularly used in HVAC (heating, ventilation, and air conditioning) systems in North America.

Běžná

Calorie

cal

The calorie is a unit of thermal energy defined as the heat required to raise 1 gram of water by 1°C. While largely superseded by joules, it remains in some scientific contexts.

Vědecká

Electronvolt

eV

The electronvolt is the natural energy scale for atomic and subatomic processes. It's the energy gained by an electron when accelerated through a potential difference of 1 volt.

Vědecká

Gigawatt

GW

The gigawatt is a unit of power used to measure the output of large-scale power generation facilities and the consumption of entire electrical grids. One gigawatt is enough to power approximately 700,000 homes.

Běžná Vědecká

Horsepower

hp

The horsepower is an iconic imperial unit for measuring power, defined historically as the power output of a draft horse. It remains standard for car engines in the US and automotive industry worldwide.

Běžná

Joule

J

The joule is the SI unit of energy, named after English physicist James Prescott Joule. It's the fundamental unit for all energy calculations in physics and engineering.

Vědecká

Kilocalorie

kcal

The kilocalorie is the "Calorie" you see on food labels in countries using metric units. In the US, this same unit is called a "Calorie" (capital C), creating confusion between the two terms.

Běžná Vědecká

Kilojoule

kJ

The kilojoule is the practical metric unit for food energy on nutrition labels outside the United States. It's also used for describing thermal energy and power outputs.

Běžná Vědecká

Kilowatt

kW

The kilowatt is the practical unit for measuring moderate to large power levels, from kitchen appliances to electric vehicle charging rates.

Běžná Vědecká

Kilowatt Hour

kWh

The kilowatt hour is the unit you see on your electricity bill. It measures electrical energy consumption and is used by all utility companies globally.

Běžná Vědecká

Megajoule

MJ

The megajoule is used for measuring large quantities of energy in industrial contexts, such as fuel energy content or power plant outputs.

Vědecká

Megawatt

MW

The megawatt is used for measuring large power generation and consumption. Power plant capacities, solar farms, and wind turbines are rated in megawatts.

Běžná Vědecká

Therm

thm

The therm is a unit of energy primarily used by natural gas utilities for billing purposes. It represents a practical quantity of energy that makes gas consumption easier to understand on customer bills.

Běžná

Watt

W

The watt is the SI unit of power named after Scottish engineer James Watt. It's displayed on every electrical device, from light bulbs to appliances and power supplies.

Běžná Vědecká

Watt Hour

Wh

The watt hour is the practical unit for battery capacity and stored electrical energy. It's displayed on battery labels and power banks worldwide.

Běžná Vědecká

Rychlá fakta

Celkové jednotky

15

Běžně používaná

11

Vědecké jednotky

12