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Btus (th)/pound/°R to Kilocalories (th)/kilogram/°C Converter (Btu(th)/(lb·°R) to kcal (th)/(kg·°C))

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Live Conversion • ISO 80000-5:2019 Certified
1 Btu (th)/pound/°R = 1 Kilocalorie (th)/kilogram/°C
1 Btu(th)/(lb·°R) = 1 kcal (th)/(kg·°C) • 1 kcal (th)/(kg·°C) = 1 Btu(th)/(lb·°R)
Btu (th)/pound/°R to Kilocalorie (th)/kilogram/°C: One Btu (th)/pound/°R is equal to 1 Kilocalorie (th)/kilogram/°C.
Certified Authority Value
1.00000000
kcal (th)/(kg·°C)
Exact: 1 kcal (th)/(kg·°C) ≡ 1 Btu(th)/(lb·°R)
Btu(th)/(lb·°R)
Btu(th)/(lb·°R)
Swap to Kilocalorie (th)/kilogram/°C to Btu (th)/pound/°R
Swap to Kilocalorie (th)/kilogram/°C to Btu (th)/pound/°R
kcal (th)/(kg·°C)
kcal (th)/(kg·°C) 1
Quick Values:
Conversion Formula
To convert Btu (th)/pound/°R to Kilocalorie (th)/kilogram/°C, multiply by 1
Btu(th)/(lb·°R) × 1 = kcal (th)/(kg·°C)

Calculation: 1 Btu(th)/(lb·°R) × 1 = 1 kcal (th)/(kg·°C)

Common Btu (th)/pound/°R to Kilocalorie (th)/kilogram/°C Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Btu (th)/pound/°R (Btu(th)/(lb·°R)) and Kilocalorie (th)/kilogram/°C (kcal (th)/(kg·°C)).

Tap any row to calculate
Btu (th)/pound/°R to Kilocalorie (th)/kilogram/°C: Primary Direct Table (15 Steps)
Btu (th)/pound/°R to Kilocalorie (th)/kilogram/°C Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 Btu(th)/(lb·°R) 0.001 kcal (th)/(kg·°C) 1 × 10⁻³
0.01 Btu(th)/(lb·°R) 0.01 kcal (th)/(kg·°C) 1 × 10⁻²
0.1 Btu(th)/(lb·°R) 0.1 kcal (th)/(kg·°C) 1 × 10⁻¹
0.5 Btu(th)/(lb·°R) 0.5 kcal (th)/(kg·°C) 5 × 10⁻¹
1 Btu(th)/(lb·°R) 1 kcal (th)/(kg·°C) 1 × 10⁰
2 Btu(th)/(lb·°R) 2 kcal (th)/(kg·°C) 2 × 10⁰
5 Btu(th)/(lb·°R) 5 kcal (th)/(kg·°C) 5 × 10⁰
10 Btu(th)/(lb·°R) 10 kcal (th)/(kg·°C) 1 × 10¹
20 Btu(th)/(lb·°R) 20 kcal (th)/(kg·°C) 2 × 10¹
25 Btu(th)/(lb·°R) 25 kcal (th)/(kg·°C) 2.5 × 10¹
50 Btu(th)/(lb·°R) 50 kcal (th)/(kg·°C) 5 × 10¹
100 Btu(th)/(lb·°R) 100 kcal (th)/(kg·°C) 1 × 10²
250 Btu(th)/(lb·°R) 250 kcal (th)/(kg·°C) 2.5 × 10²
500 Btu(th)/(lb·°R) 500 kcal (th)/(kg·°C) 5 × 10²
1000 Btu(th)/(lb·°R) 1000 kcal (th)/(kg·°C) 1 × 10³
Kilocalorie (th)/kilogram/°C to Btu (th)/pound/°R: Reciprocal Summary
Kilocalorie (th)/kilogram/°C to Btu (th)/pound/°R Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 kcal (th)/(kg·°C) 1 Btu(th)/(lb·°R) 1 × 10⁰
5 kcal (th)/(kg·°C) 5 Btu(th)/(lb·°R) 5 × 10⁰
10 kcal (th)/(kg·°C) 10 Btu(th)/(lb·°R) 1 × 10¹
50 kcal (th)/(kg·°C) 50 Btu(th)/(lb·°R) 5 × 10¹
100 kcal (th)/(kg·°C) 100 Btu(th)/(lb·°R) 1 × 10²
View Complete 15-Row Kilocalorie (th)/kilogram/°C to Btu (th)/pound/°R Table

Real-World Context & Everyday Benchmarks

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To help contextualize these units in everyday life, science, and engineering, here are verified real-world reference points for Btu (th)/pound/°R (Btu(th)/(lb·°R)) and Kilocalorie (th)/kilogram/°C (kcal (th)/(kg·°C)):

Btu (th)/pound/°R References:

  • Pure liquid water standard specific heat capacity at 25°C 1 Btu(th)/(lb·°R)
  • Dry atmospheric air specific heat at constant pressure cp 0.240201 Btu(th)/(lb·°R)
  • Solid structural aluminum metal specific heat capacity 0.214388 Btu(th)/(lb·°R)
  • Pure electrical copper metal specific heat capacity 0.092017 Btu(th)/(lb·°R)

Kilocalorie (th)/kilogram/°C References:

  • Pure liquid water standard specific heat capacity at 25°C 1 kcal (th)/(kg·°C)
  • Dry atmospheric air specific heat at constant pressure cp 0.240201 kcal (th)/(kg·°C)
  • Solid structural aluminum metal specific heat capacity 0.214388 kcal (th)/(kg·°C)
  • Pure electrical copper metal specific heat capacity 0.092017 kcal (th)/(kg·°C)

Tap any benchmark above to automatically calculate its exact equivalent in Kilocalorie (th)/kilogram/°C.

ISQ Dimension: [L² T⁻² Θ⁻¹] Coherent SI Unit: joule per kilogram kelvin (J/(kg·K)) Thermodynamics & Heat Transfer

How to Convert Btu (th)/pound/°R to Kilocalorie (th)/kilogram/°C

Converting Btu (th)/pound/°R (Btu(th)/(lb·°R)) to Kilocalorie (th)/kilogram/°C (kcal (th)/(kg·°C)) is a core calculation in Specific Heat Capacity, which measures the thermal energy required to raise the temperature of a unit mass of substance by one degree. Both units share an identical 1:1 scale equivalence within this physical measurement domain. They represent the exact same physical magnitude under different metrological designations or derived SI formulations (1 Btu(th)/(lb·°R) ≡ 1 kcal (th)/(kg·°C)). Any quantity expressed in Btu (th)/pound/°R translates directly to Kilocalorie (th)/kilogram/°C without mathematical scaling.

Direct Factor1 Btu(th)/(lb·°R) = 1 kcal (th)/(kg·°C)
Inverse Ratio1 kcal (th)/(kg·°C) = 1 Btu(th)/(lb·°R)
Conversion Scale1:1 Direct Dimensional Identity
First-Principles SI Derivation ProofNIST SP 811 / ISO 80000 Compliance

Mathematical Conversion Derivation via Coherent SI Base Unit

Under the International System of Quantities (ISQ), dimensional conversion between non-SI units is rigorously resolved by bridging through the coherent SI base unit (joule per kilogram kelvin (J/(kg·K))) without arbitrary rounding:

Vtarget=Vsource×(ksource→SIktarget→SI)V_{\text{target}} = V_{\text{source}} \times \left( \frac{k_{\text{source} \to \text{SI}}}{k_{\text{target} \to \text{SI}}} \right)
Universal Dimensional Conversion Law (ISO 80000 / NIST SP 811)
1. Source SI Bridge (ksource):1 Btu(th)/(lb·°R) = 4184 joule per kilogram kelvin (J/(kg·K))
2. Target SI Bridge (ktarget):1 kcal (th)/(kg·°C) = 4184 joule per kilogram kelvin (J/(kg·K))
Step-by-step substitution for Btu (th)/pound/°R → Kilocalorie (th)/kilogram/°C:V(kcal (th)/(kg·°C)) = V(Btu(th)/(lb·°R)) × ( 4184 / 4184 ) = V(Btu(th)/(lb·°R)) × 1
Mathematical FormulaValue in Kilocalorie (th)/kilogram/°C = Value in Btu (th)/pound/°R × 1Direct computational formula applied for standard conversion.
Worked Example

For an engineering input of 8 Btu(th)/(lb·°R), applying the conversion factor yields exactly 8 kcal (th)/(kg·°C). At larger operational scale, 5000 Btu (th)/pound/°R corresponds to 5000 kcal (th)/(kg·°C).

Inverse check: 1 kcal (th)/(kg·°C) = 1 Btu(th)/(lb·°R).

Understanding Btu (th)/pound/°R and Kilocalorie (th)/kilogram/°C

Btu (th)/pound/°R

Btu(th)/(lb·°R)
Imperial / US

A Btu (th)/pound/°R (Btu(th)/(lb·°R)) is an imperial and US customary unit for specific heat capacity.

Applications & Practical Context

In practical specific heat capacity terms, a pure liquid water standard specific heat capacity at 25°C equals 1 Btu(th)/(lb·°R), a dry atmospheric air specific heat at constant pressure cp equals 0.240201 Btu(th)/(lb·°R), a solid structural aluminum metal specific heat capacity equals 0.214388 Btu(th)/(lb·°R).

Physical Setup

A physical magnitude of 1 Btu(th)/(lb·°R) corresponds to 4184 J/(kg·K) in standard SI measurement.

Conversion to SI Unit: joule per kilogram kelvin (J/(kg·K))
1 Btu(th)/(lb·°R) = 4184 J/(kg·K)

Kilocalorie (th)/kilogram/°C

kcal (th)/(kg·°C)
SI Multiple

A Kilocalorie (th)/kilogram/°C (kcal (th)/(kg·°C)) is a decimal multiple of the SI-derived unit for specific heat capacity.

Applications & Practical Context

In practical specific heat capacity terms, a pure liquid water standard specific heat capacity at 25°C equals 1 kcal (th)/(kg·°C), a dry atmospheric air specific heat at constant pressure cp equals 0.240201 kcal (th)/(kg·°C), a solid structural aluminum metal specific heat capacity equals 0.214388 kcal (th)/(kg·°C).

Physical Setup

A physical magnitude of 1 kcal (th)/(kg·°C) corresponds to 4184 J/(kg·K) in standard SI measurement.

Conversion to SI Unit: joule per kilogram kelvin (J/(kg·K))
1 kcal (th)/(kg·°C) = 4184 J/(kg·K)

Domain Metrology & Engineering Applications

Governing Law & Equation

Specific Enthalpy Derivative (c_p = (∂h/∂T)_p)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using differential scanning calorimeters (DSC), adiabatic drop calorimeters, and dual-furnace calorimeter systems.

Primary Industry Sectors

Applied across battery thermal runaway mitigation (EV cell modeling), chemical synthesis reactor safety, molten salt solar storage, and cryogenic coolant engineering under international metrology standard ISO 80000-5:2019, NIST Chemistry WebBook.

Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-5:2019, NIST Chemistry WebBook and the BIPM SI Brochure (9th Edition). Governed by Specific Enthalpy Derivative (c_p = (∂h/∂T)_p) under ISO 80000 dimensional vector [L² T⁻² Θ⁻¹].

Multi-Variable Engineering Bridge Thermodynamics & Heat Storage

Specific Heat Capacity to Thermal Energy Storage Bridge (Joules • Kilojoules • Megajoules • kWh • BTU)

Calculate total sensible thermal storage energy Q = c_p × (m × ΔT) for heating or cooling mass charges, bridging specific heat capacity [L² T⁻² Θ⁻¹] with stored thermal energy [M L² T⁻²].

Q = c_p × (m × ΔT)
Vector: [J/(kg·K)] × [kg·K] → [J]
Live Calculated Bridge Equivalent:
1 Btu(th)/(lb·°R) at 50 kg Domestic Water at 40K Swing (2,000 kg·K) = 8368000 J
Equals 8368 kJ • 8.368 MJ • 2.324444 kWh
SI Energy
8368000
J
Joules
Thermal Scale
8368
kJ
Kilojoules
Bulk Energy
8.368
MJ
Megajoules
Electric Utility Meter
2.324444
kWh
Kilowatt-Hours
Battery Capacity
2324.4444
Wh
Watt-Hours
Imperial Thermal
7931.3337
BTU
British Thermal Units
  1. 1. Normalize Input to SI Base Unit (J/(kg·K)):
    c_p = 1 Btu(th)/(lb·°R) × 4184 = 4184 J/(kg·K)
  2. 2. Apply Engineering Parameter (mΔT):
    Selected condition: 50 kg Domestic Water at 40K Swing (2,000 kg·K) at mΔT = 2000 kg·K
  3. 3. Execute Governing Physical Law in SI Units:
    Q = c_p × (m × ΔT) = (4184 J/(kg·K)) × (2000 kg·K) = 8368000 J
  4. 4. Convert to Standard Engineering Units:
    • J: 8368000 × 1 = 8368000 J (Joules) • kJ: 8368000 × 0.001 = 8368 kJ (Kilojoules) • MJ: 8368000 × 1 × 10⁻⁶ = 8.368 MJ (Megajoules) • kWh: 8368000 × 2.7778 × 10⁻⁷ = 2.324444 kWh (Kilowatt-Hours) • Wh: 8368000 × 0.0002778 = 2324.4444 Wh (Watt-Hours) • BTU: 8368000 × 0.0009478 = 7931.3337 BTU (British Thermal Units)
Explore Full Energy Converter →
Engineering Substance / Operating Standard Parameter Value (kg·K) Reference State / Condition Typical Industrial & Engineering Application
50 kg Domestic Water at 40K Swing (2,000 kg·K) 2000 m = 50 kg, ΔT = 40 K 50-liter domestic hot water tank charge
1,000 kg Hydronic Buffer at 20K Swing (20,000 kg·K) 20000 m = 1,000 kg, ΔT = 20 K Commercial heat pump thermal buffer storage
200 kg Engine Block at 70K Swing (14,000 kg·K) 14000 m = 200 kg, ΔT = 70 K Cast iron engine warm-up heat soak
10,000 kg Process Fluid at 50K Swing (500,000 kg·K) 500000 m = 10,000 kg, ΔT = 50 K Industrial batch chemical reactor heat load
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Frequently Asked Questions

There are exactly 1 kilocalories (th)/kilogram/°c (kcal (th)/(kg·°C)) in 1 btu (th)/pound/°r (Btu(th)/(lb·°R)). To calculate larger amounts manually, simply multiply your total number of btus (th)/pound/°r by the conversion multiplier of 1.

The mathematical formula to convert btus (th)/pound/°r to kilocalories (th)/kilogram/°c is: [value] * 1 = kilocalories (th)/kilogram/°c. Rather than doing the math manually, you can use our high-precision online calculator to process this exact equation instantly without rounding errors.

To perform the reverse calculation from kilocalories (th)/kilogram/°c back to btus (th)/pound/°r, you must divide your starting value by 1. Our bidirectional tool automatically computes this inverse equation the moment you type into the kilocalorie (th)/kilogram/°c input field.

1 Btu (th)/pound/°R and 1 Kilocalorie (th)/kilogram/°C represent the exact same physical magnitude with an identical 1:1 conversion ratio.

Under standard international measurement guidelines, 1 Btu (th)/pound/°R converts to 1 kilocalories (th)/kilogram/°c. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.