Work Calculator
Pulling with 50 N at 60° over 10 m does 250 J of work: only the forward component F cos θ = 25 N moves the sled.
500 J
- In kJ
- 0.5 kJ
- In MJ
- 0.0005 MJ
- In cal
- 119.5028681 cal
- In kcal
- 0.1195028681 kcal
- In Wh
- 0.1388888889 Wh
Step-by-step solution
- W = F × d × cos θ°
- W = 50 × 10 × cos 0°
- W = 500 J
Work Formula
W = F d cos θ
W work (J), F force, d displacement, θ angle between force and motion
Worked Example
Pulling a sled 10 m with 50 N at 60° to the ground:
- W = F × d × cos θ°
- W = 50 × 10 × cos 60°
- W = 250 J
In MJ: 0.00025 MJ · In cal: 59.75143403 cal · In kcal: 0.05975143403 kcal · In Wh: 0.06944444444 Wh
One joule
A joule is one newton acting over one metre. Lifting a 100 g apple 1 m takes about 1 J; a food Calorie (kcal) is 4184 J.
More Energy, Work and Momentum Calculators
-
Kinetic Energy Calculator
KE = ½ m v²
KE kinetic energy (J), m mass (kg), v speed (m/s)
Example: A 20 kg object moving at 10 m/s: Kinetic energy KE = 1000 J.
-
Potential Energy Calculator
PE = m g h
PE potential energy (J), m mass, g gravitational acceleration, h height above the reference level
Example: Lifting a 10 kg box 10 m on Earth: Potential energy PE = 980.665 J.
-
Power Calculator
P = W / t
P power (W), W work or energy transferred (J), t time (s)
Example: Doing 15,000 J of work in 60 seconds: Power P = 250 W.
-
Momentum Calculator
p = m v
p momentum (kg·m/s), m mass, v velocity (a vector: its sign gives the direction)
Example: A 1.5 kg ball moving at 20 m/s: Momentum p = 30 kg·m/s.
Frequently asked questions
When is work zero?
When the force is perpendicular to the motion (θ = 90°) or nothing moves. Carrying a bag level along a corridor does no work on it in the physics sense.
What does negative work mean?
The force opposes the motion (θ > 90°), taking energy away, as friction and braking forces do.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Work Calculator. Retrieved October 25, 2026, from https://scientificconverters.com/calculators/work-calculator/
IEEE
Scientific Converters, "Work Calculator," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/calculators/work-calculator/