Convert BTU per Hour-Foot-Fahrenheit to Calories per Second-Centimeter-Celsius
Instantly convert BTU per Hour-Foot-Fahrenheit (BTU/(hr·ft·°F)) to Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) with our free online calculator.
Formula: BTU/(hr·ft·°F) to cal/(s·cm·°C) — multiply by 0.00413654
Reference Table
| BTU per Hour-Foot-Fahrenheit (BTU/(hr·ft·°F)) | Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) |
|---|---|
| 1 | 0.00413654 |
| 5 | 0.0206827 |
| 10 | 0.0413654 |
| 25 | 0.103414 |
| 50 | 0.206827 |
| 100 | 0.413654 |
How to Convert BTU per Hour-Foot-Fahrenheit to Calories per Second-Centimeter-Celsius
Formula
To convert BTU per Hour-Foot-Fahrenheit (BTU/(hr·ft·°F)) to Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)): multiply by 0.00413654
Step-by-Step
- Start with your value in BTU per Hour-Foot-Fahrenheit (BTU/(hr·ft·°F)).
- Multiply by 0.00413654 to perform the conversion.
- The result is your value expressed in Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)).
Conversion Factor
1 BTU/(hr·ft·°F) = 0.00413654 cal/(s·cm·°C)
Reverse Factor
1 cal/(s·cm·°C) = 241.748 BTU/(hr·ft·°F)
Worked Example
Convert 25 BTU per Hour-Foot-Fahrenheit to Calories per Second-Centimeter-Celsius: 25 BTU/(hr·ft·°F) = 0.103414 cal/(s·cm·°C)
About BTU per Hour-Foot-Fahrenheit (BTU/(hr·ft·°F))
An imperial thermal-conductivity unit (≈ 1.7307 W/(m·K) per NIST SP 811) used in US HVAC engineering, building-envelope thermal design per ASHRAE 90.1, refrigeration system design, and petroleum-engineering reservoir heat-flow analysis (steam-flood and CSS thermal EOR per SPE technical literature). Reference values in US-edition engineering handbooks: copper 231 BTU/(hr·ft·°F), steel 26, concrete 0.8, wood 0.07, fiberglass batt insulation 0.025, expanded polystyrene 0.020, aerogel 0.009. US-edition heat-transfer textbooks (Holman, Incropera-DeWitt with US-customary tables) include thermal-conductivity property tables in BTU/(hr·ft·°F) alongside W/(m·K). The unit also appears in ASHRAE Standard 90.1 prescriptive R-value tables (where R-value = thickness / k), in petroleum-reservoir simulation property cards (CMG STARS), and in pre-2000 ASHRAE Handbook editions. Convert BTU/(hr·ft·°F) to W/(m·K) by multiplying by 1.7307; to BTU·in/(hr·ft²·°F) by multiplying by 12.
About Calorie per Second-Centimeter-Celsius (cal/(s·cm·°C))
A CGS-system unit of thermal conductivity equal to exactly 418.4 W/(m·K) — a large unit, appropriate only for highly conductive solids like pure metals at low temperatures. cal/(s·cm·°C) appears almost exclusively in: pre-1980s chemistry and physics literature (Bridgman's high-pressure thermal-conductivity measurements published 1920s-50s; Maxwell-Eucken and Bruggeman-model effective-medium thermal-conductivity papers in J. Chem. Phys.), Eastern-European and Soviet engineering documentation that retained CGS units into the 1990s, and historical-era thermochemistry textbooks. Reference values in this unit are inconveniently small for most materials (copper ~0.96 cal/(s·cm·°C); aluminum 0.57; iron 0.12; water 0.0014) which is part of why the unit fell out of favor in favor of W/(m·K). Today mostly useful for interpreting historical data and older thermochemistry papers. Convert cal/(s·cm·°C) to W/(m·K) by multiplying by 418.4.
Quick Facts
- 1 BTU per Hour-Foot-Fahrenheit equals 0.00413654 Calories per Second-Centimeter-Celsius
- 1 Calorie per Second-Centimeter-Celsius equals 241.748 BTU per Hour-Foot-Fahrenheit
- BTU per Hour-Foot-Fahrenheit is a unit of thermal conductivity
- Calorie per Second-Centimeter-Celsius is a unit of thermal conductivity
- This conversion is commonly used in insulation design, heat exchanger engineering, and material science
- The BTU per Hour-Foot-Fahrenheit belongs to the imperial system
- The Calorie per Second-Centimeter-Celsius belongs to the metric system
Common BTU per Hour-Foot-Fahrenheit to Calorie per Second-Centimeter-Celsius Conversions
| BTU per Hour-Foot-Fahrenheit (BTU/(hr·ft·°F)) | Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) |
|---|---|
| 0.01 | 0.0000413654 |
| 0.1 | 0.000413654 |
| 0.25 | 0.00103414 |
| 0.5 | 0.00206827 |
| 1 | 0.00413654 |
| 2 | 0.00827309 |
| 3 | 0.0124096 |
| 5 | 0.0206827 |
| 10 | 0.0413654 |
| 15 | 0.0620482 |
| 20 | 0.0827309 |
| 25 | 0.103414 |
| 50 | 0.206827 |
| 75 | 0.310241 |
| 100 | 0.413654 |
| 250 | 1.03414 |
| 500 | 2.06827 |
| 1000 | 4.13654 |
| 5000 | 20.6827 |
| 10000 | 41.3654 |
Understanding BTU per Hour-Foot-Fahrenheit
The BTU per Hour-Foot-Fahrenheit (symbol: BTU/(hr·ft·°F)) is a unit of thermal conductivity. An imperial thermal-conductivity unit (≈ 1.7307 W/(m·K) per NIST SP 811) used in US HVAC engineering, building-envelope thermal design per ASHRAE 90.1, refrigeration system design, and petroleum-engineering reservoir heat-flow analysis (steam-flood and CSS thermal EOR per SPE technical literature). Reference values in US-edition engineering handbooks: copper 231 BTU/(hr·ft·°F), steel 26, concrete 0.8, wood 0.07, fiberglass batt insulation 0.025, expanded polystyrene 0.020, aerogel 0.009. US-edition heat-transfer textbooks (Holman, Incropera-DeWitt with US-customary tables) include thermal-conductivity property tables in BTU/(hr·ft·°F) alongside W/(m·K). The unit also appears in ASHRAE Standard 90.1 prescriptive R-value tables (where R-value = thickness / k), in petroleum-reservoir simulation property cards (CMG STARS), and in pre-2000 ASHRAE Handbook editions. Convert BTU/(hr·ft·°F) to W/(m·K) by multiplying by 1.7307; to BTU·in/(hr·ft²·°F) by multiplying by 12.
It belongs to the imperial measurement system.
BTU per Hour-Foot-Fahrenheit are commonly used in insulation design, heat exchanger engineering, and material science.
Understanding Calories per Second-Centimeter-Celsius
The Calorie per Second-Centimeter-Celsius (symbol: cal/(s·cm·°C)) is a unit of thermal conductivity. A CGS-system unit of thermal conductivity equal to exactly 418.4 W/(m·K) — a large unit, appropriate only for highly conductive solids like pure metals at low temperatures. cal/(s·cm·°C) appears almost exclusively in: pre-1980s chemistry and physics literature (Bridgman's high-pressure thermal-conductivity measurements published 1920s-50s; Maxwell-Eucken and Bruggeman-model effective-medium thermal-conductivity papers in J. Chem. Phys.), Eastern-European and Soviet engineering documentation that retained CGS units into the 1990s, and historical-era thermochemistry textbooks. Reference values in this unit are inconveniently small for most materials (copper ~0.96 cal/(s·cm·°C); aluminum 0.57; iron 0.12; water 0.0014) which is part of why the unit fell out of favor in favor of W/(m·K). Today mostly useful for interpreting historical data and older thermochemistry papers. Convert cal/(s·cm·°C) to W/(m·K) by multiplying by 418.4.
It belongs to the metric measurement system.
Calories per Second-Centimeter-Celsius are commonly used in insulation design, heat exchanger engineering, and material science.
Why Convert BTU per Hour-Foot-Fahrenheit to Calories per Second-Centimeter-Celsius?
Converting between BTU per Hour-Foot-Fahrenheit and Calories per Second-Centimeter-Celsius is a frequent requirement for engineers, scientists, and students working with thermal conductivity values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate thermal conductivity conversion is essential.
Frequently Asked Questions
How do I convert BTU per Hour-Foot-Fahrenheit to Calories per Second-Centimeter-Celsius?
An imperial thermal-conductivity unit (≈ 1. To convert BTU per Hour-Foot-Fahrenheit to Calories per Second-Centimeter-Celsius, multiply by 0.00413654. For example, 25 BTU/(hr·ft·°F) equals 0.103414 cal/(s·cm·°C).
How many Calories per Second-Centimeter-Celsius are in 1 BTU per Hour-Foot-Fahrenheit?
There are 0.00413654 Calories per Second-Centimeter-Celsius in 1 BTU per Hour-Foot-Fahrenheit.
How many BTU per Hour-Foot-Fahrenheit are in 1 Calorie per Second-Centimeter-Celsius?
There are 241.748 BTU per Hour-Foot-Fahrenheit in 1 Calorie per Second-Centimeter-Celsius.
What is the formula for BTU per Hour-Foot-Fahrenheit to Calorie per Second-Centimeter-Celsius conversion?
The formula is: multiply by 0.00413654. This means 1 BTU/(hr·ft·°F) = 0.00413654 cal/(s·cm·°C).
Is a BTU per Hour-Foot-Fahrenheit bigger than a Calorie per Second-Centimeter-Celsius?
Yes. One BTU per Hour-Foot-Fahrenheit is larger than one Calorie per Second-Centimeter-Celsius because 1 BTU/(hr·ft·°F) equals 0.00413654 cal/(s·cm·°C), which is less than 1.
When do you need to convert between BTU per Hour-Foot-Fahrenheit and Calories per Second-Centimeter-Celsius?
A CGS-system unit of thermal conductivity equal to exactly 418. BTU per Hour-Foot-Fahrenheit and Calorie per Second-Centimeter-Celsius are both thermal conductivity units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.