Watt Seconds to Joules: 1 Ws equals 1 J. To convert watt seconds to joules, multiply by 1 (J = Ws × 1). For example, 10 Ws = 10 J.
How to Convert Watt Seconds to Joules
To convert from watt seconds to joules, multiply the value by 1. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Watt Seconds to Joules:
J = Ws × 1 - Joules to Watt Seconds:
Ws = J ÷ 1
Watt Seconds to Joules Conversion Chart
| Watt Seconds (Ws) | Joules (J) |
|---|---|
| 0.1 | 0.1 |
| 0.25 | 0.25 |
| 0.5 | 0.5 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 5 | 5 |
| 10 | 10 |
| 20 | 20 |
| 25 | 25 |
| 50 | 50 |
| 100 | 100 |
| 250 | 250 |
| 1000 | 1000 |
Understanding the Units
What is a Watt Second?
A watt-second is identical to one joule.
Common contexts: photography (flash energy), capacitor ratings.
What is a Joule?
The joule is the SI derived unit of energy, equal to the work done by a force of one newton acting through a distance of one meter (1 J = 1 N·m = 1 W·s).
Named after James Prescott Joule (1818–1889), the English physicist who demonstrated the mechanical equivalent of heat.
Common contexts: physics, chemistry, engineering.
Real-World Reference Points
| Item | Watt Seconds (Ws) | Joules (J) |
|---|---|---|
| Energy to lift an apple 1 m | 1 | 1 |
| Heart beat (resting) | 1 | 1 |
| AA battery (alkaline) | 9000 | 9000 |