Watts per square centimeter to Btu per hour square foot Converter
Quick answer: To convert watts per square centimeter to btu per hour square foot, multiply by 3,169.983. For example, 10 W/cm² is 31,699.83 Btu/(h·ft²). One watt per square centimeter equals 3,169.983 Btu/(h·ft²).
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Use the Watts per square centimeter to Btu per hour square foot Converter
Watts per square centimeter to Btu per hour square foot formula and what each symbol means
Btu/(h·ft²) = W/cm² × 3,169.983
| Symbol | Meaning |
|---|---|
| W/cm² | Watt per square centimeter |
| Btu/(h·ft²) | Btu per hour square foot |
Watts per square centimeter to Btu per hour square foot examples
1 W/cm²
1 W/cm² × 3,169.983 = 3,169.983 Btu/(h·ft²).
10 W/cm²
10 W/cm² × 3,169.983 = 31,699.83 Btu/(h·ft²).
100 W/cm²
100 W/cm² × 3,169.983 = 316,998.3 Btu/(h·ft²).
Watts per square centimeter compared with Btu per hour square foot
One W/cm² is 3,170 times as large as one Btu/(h·ft²), so your number gets bigger when you convert watts per square centimeter to btu per hour square foot and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About watts per square centimeter and btu per hour square foot
Watt per square centimeter (W/cm²): 10,000 W/m². Btu per hour square foot (Btu/(h·ft²)): A US customary unit, about 3.1546 W/m².
How to calculate Watts per square centimeter to Btu per hour square foot step by step
- Enter the value in W/cm² (the starting unit).
- Multiply by 3,169.983, because 1 W/cm² = 3,169.983 Btu/(h·ft²).
- The product is the value in Btu/(h·ft²). To go back, divide by 3,169.983 or multiply by 0.0003154591.
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How to read your Watts per square centimeter to Btu per hour square foot result
Quick estimate: multiply by about 3,200 to get btu per hour square foot from watts per square centimeter; this is within 1.0% of the exact factor. Sunlight above the atmosphere averages about 1,361 W/m², and 1 Btu/(h·ft²) is about 3.1546 W/m².
| WATTS PER SQUARE CENTIMETER | BTU PER HOUR SQUARE FOOT |
|---|---|
| 1 | 3,169.983 |
| 2 | 6,339.967 |
| 5 | 15,849.92 |
| 10 | 31,699.83 |
| 20 | 63,399.67 |
| 50 | 158,499.2 |
| 100 | 316,998.3 |
| 1,000 | 3,169,983 |
Btu per hour square foot to Watts per square centimeter: quick table
| BTU PER HOUR SQUARE FOOT | WATTS PER SQUARE CENTIMETER |
|---|---|
| 1 | 0.0003154591 |
| 5 | 0.001577295 |
| 10 | 0.003154591 |
| 25 | 0.007886477 |
| 50 | 0.01577295 |
| 100 | 0.03154591 |
| 250 | 0.07886477 |
| 500 | 0.1577295 |
Common mistakes when calculating Watts per square centimeter to Btu per hour square foot
- Confusing heat flux (W/m²) with total heat flow (W).
- Dividing when you should multiply: from W/cm² to Btu/(h·ft²) multiply by 3,169.983; from Btu/(h·ft²) to W/cm² divide by 3,169.983.
Watts per square centimeter to Btu per hour square foot FAQ
How many Btu/(h·ft²) are in 1 W/cm²?
1 W/cm² equals 3,169.983 Btu/(h·ft²).
How many W/cm² are in 1 Btu/(h·ft²)?
1 Btu/(h·ft²) equals 0.0003154591 W/cm².
Is 1 W/cm² = 3,169.983 Btu/(h·ft²) an exact conversion?
The factor is shown rounded to 7 significant figures (3,169.983). The calculator above uses more digits.
What is a btu per hour square foot (Btu/(h·ft²))?
A US customary unit, about 3.1546 W/m².
How can I estimate watts per square centimeter to btu per hour square foot in my head?
Quick estimate: multiply by about 3,200 to get btu per hour square foot from watts per square centimeter; this is within 1.0% of the exact factor.
What is 80 W/cm² in btu per hour square foot?
80 W/cm² = 253,598.7 Btu/(h·ft²) (since 80 × 3,169.983).
What is 500 W/cm² in btu per hour square foot?
500 W/cm² = 1,584,992 Btu/(h·ft²) (since 500 × 3,169.983).
What is 15 W/cm² in btu per hour square foot?
15 W/cm² = 47,549.75 Btu/(h·ft²) (since 15 × 3,169.983).
How many decimals should I keep when converting W/cm² to Btu/(h·ft²)?
Match the precision of your original measurement. For example, 31,699.83 Btu/(h·ft²) rounds to 31,700 Btu/(h·ft²) at 3 significant figures; keep more digits only for engineering or scientific work.
More in Heat Flux Density converters
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)