Watts to Joules Calculator

Convert watts to joules by multiplying power by time in seconds. J = W Γ— s.

W
seconds

ENERGY

60,000 J


IN kJ

60 kJ

FORMULA

J = W Γ— s

IN kWh

0.0167 kWh

πŸ’‘ How to Convert Watts to Joules

Formula

J = W Γ— s

Where J = energy (joules), W = power (watts), s = time (seconds)
Example: 1,000W Γ— 60s = 60,000 joules (60 kJ)

A watt is defined as 1 joule per second. So watts Γ— seconds = joules. For larger energies, use kWh: 1 kWh = 3,600,000 joules.

1,000W Γ— 60 seconds = 60,000 joules = 60 kJ. 1 kWh = 3.6 million joules.