Calorie Converter Instructions

This tool provides international calorific unit conversions for nutrition, physics, engineering, and many other fields.

Core Conversion Formulas

Basic Calorie Calculation:
Q = c-m-Δt (Q is heat, c is specific heat capacity, m is mass, Δt is temperature difference).

Fuel heat calculation:
Solid fuels: Q = m-q
Gaseous fuels: Q = V-q
（ (q is the calorific value in J/kg or J/m³)

Main units of support

• International Standard Units: Joule(J)、 kilojoule(kJ)
• Traditional unit of heat: calorie(cal)、 kilocalorie(kcal)
• Unit of electricity: kilowatt-hour(kWh)、 Megajoule(MJ)
• Imperial units: British thermal units(BTU)

Basis of Conversion Relationships

Operating Instructions

1. Enter a value in the input box
2. Select the original unit type
3. Select the target conversion unit
4. The system will display the conversion result in real time

Notes:
• Food energy labelling commonly uses kcal(kcal)， Kilojoules are recommended for international standards(kJ)
• The engineering field recommends the use of megajoules(MJ) or kWh(kWh)
• Conversion results are retained to 6 significant figures