Convert BTU·inch per Hour-Square Foot-Fahrenheit to Calories per Second-Centimeter-Celsius
Instantly convert BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)) to Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) with our free online calculator.
Formula: BTU·in/(hr·ft²·°F) to cal/(s·cm·°C) — multiply by 3.4471e-4
Reference Table
| BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)) | Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) |
|---|---|
| 1 | 0.000344713 |
| 5 | 0.00172357 |
| 10 | 0.00344713 |
| 25 | 0.00861783 |
| 50 | 0.0172357 |
| 100 | 0.0344713 |
How to Convert BTU·inch per Hour-Square Foot-Fahrenheit to Calories per Second-Centimeter-Celsius
Formula
To convert BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)) to Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)): multiply by 3.4471e-4
Step-by-Step
- Start with your value in BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)).
- Multiply by 3.4471e-4 to perform the conversion.
- The result is your value expressed in Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)).
Conversion Factor
1 BTU·in/(hr·ft²·°F) = 0.000344713 cal/(s·cm·°C)
Reverse Factor
1 cal/(s·cm·°C) = 2900.96 BTU·in/(hr·ft²·°F)
Worked Example
Convert 25 BTU·inch per Hour-Square Foot-Fahrenheit to Calories per Second-Centimeter-Celsius: 25 BTU·in/(hr·ft²·°F) = 0.00861783 cal/(s·cm·°C)
About BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F))
An imperial thermal-conductivity unit (≈ 0.1442 W/(m·K) per NIST SP 811 = exactly 1/12 of BTU/(hr·ft·°F)) used almost exclusively for US building-insulation materials. The peculiar 'inch in the numerator' construction lets the unit cancel directly into R-value per unit thickness: an insulation product with k = 0.25 BTU·in/(hr·ft²·°F) achieves R-4 per inch of installed thickness (an R-19 wall = 19/0.25 = ~5 inches of that product). BTU·in/(hr·ft²·°F) is the unit on fiberglass-batt packaging (Owens Corning, Johns Manville, Knauf), rigid-foam-board labels (Dow, Owens Corning Foamular XPS, Dow Thermax polyiso), spray-foam (BASF Walltite, Demilec, Lapolla) data sheets, mineral-wool batts (Rockwool), cellulose loose-fill, and all US Department of Energy ENERGY STAR insulation prescriptive R-value targets. Reference values: fiberglass batt 0.27 BTU·in/(hr·ft²·°F) = R-3.7/in; XPS rigid-foam 0.20 = R-5/in; closed-cell spray foam 0.16 = R-6.5/in; aerogel 0.10 = R-10/in.
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·inch per Hour-Square Foot-Fahrenheit equals 0.000344713 Calories per Second-Centimeter-Celsius
- 1 Calorie per Second-Centimeter-Celsius equals 2900.96 BTU·inch per Hour-Square Foot-Fahrenheit
- BTU·inch per Hour-Square 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·inch per Hour-Square Foot-Fahrenheit belongs to the imperial system
- The Calorie per Second-Centimeter-Celsius belongs to the metric system
Common BTU·inch per Hour-Square Foot-Fahrenheit to Calorie per Second-Centimeter-Celsius Conversions
| BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)) | Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) |
|---|---|
| 0.01 | 0.00000344713 |
| 0.1 | 0.0000344713 |
| 0.25 | 0.0000861783 |
| 0.5 | 0.000172357 |
| 1 | 0.000344713 |
| 2 | 0.000689426 |
| 3 | 0.00103414 |
| 5 | 0.00172357 |
| 10 | 0.00344713 |
| 15 | 0.0051707 |
| 20 | 0.00689426 |
| 25 | 0.00861783 |
| 50 | 0.0172357 |
| 75 | 0.0258535 |
| 100 | 0.0344713 |
| 250 | 0.0861783 |
| 500 | 0.172357 |
| 1000 | 0.344713 |
| 5000 | 1.72357 |
| 10000 | 3.44713 |
Understanding BTU·inch per Hour-Square Foot-Fahrenheit
The BTU·inch per Hour-Square Foot-Fahrenheit (symbol: BTU·in/(hr·ft²·°F)) is a unit of thermal conductivity. An imperial thermal-conductivity unit (≈ 0.1442 W/(m·K) per NIST SP 811 = exactly 1/12 of BTU/(hr·ft·°F)) used almost exclusively for US building-insulation materials. The peculiar 'inch in the numerator' construction lets the unit cancel directly into R-value per unit thickness: an insulation product with k = 0.25 BTU·in/(hr·ft²·°F) achieves R-4 per inch of installed thickness (an R-19 wall = 19/0.25 = ~5 inches of that product). BTU·in/(hr·ft²·°F) is the unit on fiberglass-batt packaging (Owens Corning, Johns Manville, Knauf), rigid-foam-board labels (Dow, Owens Corning Foamular XPS, Dow Thermax polyiso), spray-foam (BASF Walltite, Demilec, Lapolla) data sheets, mineral-wool batts (Rockwool), cellulose loose-fill, and all US Department of Energy ENERGY STAR insulation prescriptive R-value targets. Reference values: fiberglass batt 0.27 BTU·in/(hr·ft²·°F) = R-3.7/in; XPS rigid-foam 0.20 = R-5/in; closed-cell spray foam 0.16 = R-6.5/in; aerogel 0.10 = R-10/in.
It belongs to the imperial measurement system.
BTU·inch per Hour-Square 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·inch per Hour-Square Foot-Fahrenheit to Calories per Second-Centimeter-Celsius?
Converting between BTU·inch per Hour-Square 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·inch per Hour-Square Foot-Fahrenheit to Calories per Second-Centimeter-Celsius?
An imperial thermal-conductivity unit (≈ 0. To convert BTU·inch per Hour-Square Foot-Fahrenheit to Calories per Second-Centimeter-Celsius, multiply by 3.4471e-4. For example, 25 BTU·in/(hr·ft²·°F) equals 0.00861783 cal/(s·cm·°C).
How many Calories per Second-Centimeter-Celsius are in 1 BTU·inch per Hour-Square Foot-Fahrenheit?
There are 0.000344713 Calories per Second-Centimeter-Celsius in 1 BTU·inch per Hour-Square Foot-Fahrenheit.
How many BTU·inch per Hour-Square Foot-Fahrenheit are in 1 Calorie per Second-Centimeter-Celsius?
There are 2900.96 BTU·inch per Hour-Square Foot-Fahrenheit in 1 Calorie per Second-Centimeter-Celsius.
What is the formula for BTU·inch per Hour-Square Foot-Fahrenheit to Calorie per Second-Centimeter-Celsius conversion?
The formula is: multiply by 3.4471e-4. This means 1 BTU·in/(hr·ft²·°F) = 0.000344713 cal/(s·cm·°C).
Is a BTU·inch per Hour-Square Foot-Fahrenheit bigger than a Calorie per Second-Centimeter-Celsius?
Yes. One BTU·inch per Hour-Square Foot-Fahrenheit is larger than one Calorie per Second-Centimeter-Celsius because 1 BTU·in/(hr·ft²·°F) equals 0.000344713 cal/(s·cm·°C), which is less than 1.
When do you need to convert between BTU·inch per Hour-Square Foot-Fahrenheit and Calories per Second-Centimeter-Celsius?
A CGS-system unit of thermal conductivity equal to exactly 418. BTU·inch per Hour-Square 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.