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Specific Heat Capacity Converter — J/(kg·K), BTU, cal
Convert specific heat between J/(kg·K), kJ/(kg·K), cal/(g·°C) and BTU/(lb·°F).
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Enter a value to convert
How to Use the Specific Heat Capacity Converter
- Enter a value — type any number. Invalid text and symbols are blocked automatically.
- Select From and To units — choose the units to convert between.
- Read the animated result — the converted value, factor, and full reference table update instantly.
- Use Swap (⇄) — reverse the conversion in one click.
Why Use This Specific Heat Capacity Converter
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Accurate Standards
Built on internationally recognised SI and standards-body conversion factors for dependable results.
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Instant & Animated
Results update live as you type, with a clear visual breakdown across every unit at once.
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Everything runs in your browser — no account, no uploads, nothing leaves your device.
Common Specific Heat Capacity Converter Values
Quick reference — 1 Joule/(kg·K) (J/(kg·K)) is equal to:
| Kilojoule/(kg·K) | kJ/(kg·K) | 0.001 |
| Joule/(g·K) | J/(g·K) | 0.001 |
| Calorie/(g·°C) | cal/(g·°C) | 0.0002390057 |
| Kilocalorie/(kg·°C) | kcal/(kg·°C) | 0.0002390057 |
| BTU/(lb·°F) | BTU/(lb·°F) | 0.0002388459 |
Specific Heat Capacity Converter FAQ
It is the energy needed to raise 1 kg of a substance by 1 kelvin. Water is about 4,184 J/(kg·K) — unusually high, which is why it stores heat so well.
They are numerically almost identical for water (≈1) but are different units. 1 cal/(g·°C) = 4,184 J/(kg·K); 1 BTU/(lb·°F) = 4,186.8 J/(kg·K).
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✔ Reviewed by the True Value Calc editorial team🗓 Last updated June 2026📚 Sources: NIST, BIPM SI unit definitions