Nm to Joules Calculator
Convert between Newton-meters, Joules, and other energy/work units instantly
Energy & Work Unit Converter
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Conversion Result
Key relationship: 1 Newton-meter (Nm) = 1 Joule (J)
Why? Both measure work/energy. Work = Force × Distance, so 1 N × 1 m = 1 J
Quick Reference
Example Conversions
Mechanical Work
Applied torque: 50 Nm
Energy equivalent: 50 J
In calories: 50 ÷ 4.184 = 11.95 cal
In ft·lb: 50 ÷ 1.356 = 36.87 ft·lb
Electrical Energy
Energy consumed: 1 kWh
In joules: 1 × 3,600,000 = 3.6 MJ
In Newton-meters: 3,600,000 Nm
In BTU: 3,600,000 ÷ 1,055 = 3,412 BTU
Food Energy
Food energy: 100 kcal
In joules: 100 × 4,184 = 418,400 J
In Newton-meters: 418,400 Nm
In kWh: 418,400 ÷ 3,600,000 = 0.116 kWh
Energy & Work Units
Primary Energy Units
Mechanical Units
Thermal Units
Physics Concepts
Work Formula
W = F × d × cos(θ)
Torque
τ = r × F (Nm units)
Energy Conservation
Energy cannot be created or destroyed
Unit Equivalence
1 Nm = 1 J (exactly)
Understanding Newton-meters and Joules
What are Newton-meters?
A Newton-meter (Nm) is a unit of torque and energy. It represents the amount of force (in Newtons) applied at a distance of one meter from a pivot point, or the work done when a force of one Newton acts through a distance of one meter.
What are Joules?
A Joule (J) is the SI unit of energy and work. It's defined as the energy expended when applying a force of one Newton through a distance of one meter. This makes Joules and Newton-meters dimensionally equivalent for energy measurements.
The 1:1 Relationship
- •1 Newton-meter = 1 Joule (exactly)
- •Both measure work and energy
- •Conversion factor is exactly 1
Physical Interpretation
Work Formula:
W = F × d
Where W = work, F = force, d = distance
Torque Application:
τ = r × F
Where τ = torque, r = radius, F = force
Examples:
- • Lifting 1 kg object 1 meter = ~9.8 J
- • Car engine torque: 200 Nm = 200 J
- • Battery capacity: 1 Wh = 3,600 J