Skip to main content
DD-CAT IDE logoDD-CAT IDE

Mechanical Equivalent of Heat Calculator (W=J·Q)

Favorite

Convert between heat (calories) and mechanical work (joules): 1 cal = 4.1868 J, for estimating thermal–mechanical energy conversion.

Key points

Mechanical Equivalent of Heat Calculator (W=J·Q): Convert between heat (calories) and mechanical work (joules): 1 cal = 4.1868 J, for estimating thermal–mechanical energy conversion. Formula: W = J·Q | J = 4.1868 J/cal. Enter parameters on the DD-CAT IDE online tool page to get results instantly, with a calculation-model diagram that updates with the inputs. Mechanical equivalent of heat: 1 cal = 4.1868 J (measured by Joule), 1 kcal = 4186.8 J. After the first law of thermodynamics, heat and work are two forms of energy convertible at a fixed ratio.

Inputs

W = J·Q | J = 4.1868 J/cal

Calculation model (updates with parameters)

Q = 1000 calW = 4.187 kJHeat → mechanical energy
Mechanical work W4.187 kJJ
Work (kilojoules)4.19kJ
Mechanical equivalent of heat J4.1868J/cal

Engineering notes

  • Mechanical equivalent of heat: 1 cal = 4.1868 J (measured by Joule), 1 kcal = 4186.8 J.
  • After the first law of thermodynamics, heat and work are two forms of energy convertible at a fixed ratio.
  • Common in engineering: 1 kWh = 3.6×10⁶ J ≈ 860 kcal.

FAQ

What is Mechanical Equivalent of Heat Calculator (W=J·Q) for?
Convert between heat (calories) and mechanical work (joules): 1 cal = 4.1868 J, for estimating thermal–mechanical energy conversion.
What is the formula for Mechanical Equivalent of Heat Calculator (W=J·Q)?
Core formula: W = J·Q | J = 4.1868 J/cal. The tool returns results instantly using this formula and the selected parameters.
What engineering notes should I keep in mind when using Mechanical Equivalent of Heat Calculator (W=J·Q)?
Mechanical equivalent of heat: 1 cal = 4.1868 J (measured by Joule), 1 kcal = 4186.8 J. After the first law of thermodynamics, heat and work are two forms of energy convertible at a fixed ratio. Common in engineering: 1 kWh = 3.6×10⁶ J ≈ 860 kcal.