Energy Calculator

A single lightning bolt contains about 1 billion joules - enough to power a home for a month

A medium apple falling 1 meter releases about 1 joule - the original inspiration for physics!

A car at 100 km/h has about 400,000 joules of kinetic energy - why crashes are dangerous

Earth's kinetic energy orbiting the Sun is 2.7×10³³ joules - incomprehensibly huge

The human body uses about 2000 kcal (8.4 million joules) daily just to exist

The Sun produces 3.8×10²⁶ watts - more energy per second than humanity uses in a year

A fully charged smartphone battery stores about 40,000 joules of energy

E=mc² means 1 kg of matter contains 9×10¹⁶ joules - enough to power a city for years