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Specific Heat Capacity

BTU/(lb·°R)toBTU/(lb·°F)

Convert BTUs per pound-Rankine (BTU/(lb·°R)) to BTUs per pound-Fahrenheit (BTU/(lb·°F)).

Factor1 BTU/(lb·°R) = 1 BTU/(lb·°F)

Converter

BTU/(lb·°R)

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1BTU/(lb·°F)

Rendered to 6 significant figures.

Formula

Formula
BTU/(lb·°F) = BTU/(lb·°R) × 1

Multiply any value in BTUs per pound-Rankine by 1 to obtain the value in BTUs per pound-Fahrenheit.

Worked example

Convert 1 BTU/(lb·°R) to BTU/(lb·°F).

  1. 01Start with 1 BTU/(lb·°R).
  2. 02Multiply by the conversion factor: 1 × 1 = 1 BTU/(lb·°F).
Result1 BTU/(lb·°R) = 1 BTU/(lb·°F)

Conversion table

BTU/(lb·°R)BTU/(lb·°F)
11
22
55
1010
2020
5050
100100
200200
500500
10001000

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/(lb·°R) to BTU/(lb·°F)?
1 BTU/(lb·°R) equals 1 BTU/(lb·°F). To convert, multiply the value in BTUs per pound-Rankine by 1.
How do I convert 1 BTU/(lb·°R) to BTU/(lb·°F)?
1 BTU/(lb·°R) = 1 BTU/(lb·°F). For any value, multiply by 1.
How do I convert BTU/(lb·°F) back to BTU/(lb·°R)?
Divide by the same factor — or equivalently, multiply by 1. So 1 BTU/(lb·°F) = 1 BTU/(lb·°R).
When would I need to convert BTU per pound-Rankine to BTU per pound-Fahrenheit?
Specific-heat-capacity conversions between BTU/(lb·°R) and BTU/(lb·°F) are routine in thermal engineering, heat-balance work, HVAC design, metallurgy, chemical engineering and materials science. J/(kg·K) and kJ/(kg·K) are the SI standards; cal/(g·°C) is the classic thermochemical convention; BTU/(lb·°F) dominates US process and ASHRAE datasheets. All conversions use fixed multiplicative factors — this category does NOT look up the Cp value of any specific material (water, air, steam, etc.), does NOT perform heat-duty calculations (Q = m·Cp·ΔT), and does NOT convert lumped thermal capacity (J/K) to specific heat capacity (J/(kg·K)) without mass. Temperature units in the denominator represent temperature intervals, not absolute temperatures — a 1 °C interval equals a 1 K interval.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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