Heat Capacity Unit Converter
Convert total heat capacity between J/K, calorie per Celsius interval and Btu per Fahrenheit interval.
YOUR CALCULATION
Result
—
Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Convert the energy numerator and temperature-interval denominator while retaining total object capacity.
C in J/K = value × joules per energy unit / kelvins per interval
Worked example
100 J/K is approximately 23.9005736 cal(th)/°C. One Btu(IT)/°F is 1899.100534716 J/K.
Assumptions and input details
Heat capacity is for the entire stated object. It is not specific heat per kilogram, volumetric heat capacity or molar heat capacity. Keep the same constant-pressure or constant-volume convention and material state. A temperature interval has no Celsius/Fahrenheit zero-point offset. No object mass or material property is inferred.
References: NIST: conversion factors by quantity · BIPM: SI quantities and prefixes
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
Find the equilibrium temperature of several bodies from their masses, specific heats and initial temperatures. Inspect the heat gained or lost by each body.
Calculate signed heat transfer from mass, specific heat and initial/final temperatures. Compare energy units and see a heating or cooling energy chart.
Convert whole-object thermal resistance between K/W, °C/W and Fahrenheit-hour per Btu.
Reserved advertising space.