Convert watt per square meters to btu per hour square foots
1 W/m² = 0.316998330628 BTU/(h·ft²) — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 9 heat flux density units
- Watt per square meters W/m² 1
- Kilowatt per square meters kW/m² 0.001
- Watt per square centimeters W/cm² 0.0001
- BTU per hour square foots BTU/(h·ft²) 0.316 998 330 628
- BTU per second square foots BTU/(s·ft²) 0.000 088 055 091 841 2
- Kilocalorie per hour square meters kcal/(h·m²) 0.860 420 650 096
- Calorie per second square centimeters cal/(s·cm²) 0.000 023 900 573 613 8
- Langley per minutes Ly/min 0.001 434 034 416 83
- Solar constants S₀ 0.000 734 753 857 458
Every row is Watt per square meter (W/m²) converted through the watt per square meter, in exact rational arithmetic.
How to convert watt per square meters to btu per hour square foots
Multiply the number of watt per square meters by 0.316998330628 to get btu per hour square foots.
Watt per square meter to BTU per hour square foot conversion table
| Watt per square meters (W/m²) | BTU per hour square foots (BTU/(h·ft²)) |
|---|---|
| 1 W/m² | 0.316 998 33 |
| 2 W/m² | 0.633 996 66 |
| 3 W/m² | 0.950 994 99 |
| 5 W/m² | 1.584 991 7 |
| 10 W/m² | 3.169 983 3 |
| 20 W/m² | 6.339 966 6 |
| 25 W/m² | 7.924 958 3 |
| 50 W/m² | 15.849 917 |
| 100 W/m² | 31.699 833 |
| 250 W/m² | 79.249 583 |
| 500 W/m² | 158.499 17 |
| 1000 W/m² | 316.998 33 |
BTU per hour square foot to Watt per square meter conversion table
| BTU per hour square foots (BTU/(h·ft²)) | Watt per square meters (W/m²) |
|---|---|
| 1 BTU/(h·ft²) | 3.154 590 7 |
| 2 BTU/(h·ft²) | 6.309 181 5 |
| 3 BTU/(h·ft²) | 9.463 772 2 |
| 5 BTU/(h·ft²) | 15.772 954 |
| 10 BTU/(h·ft²) | 31.545 907 |
| 20 BTU/(h·ft²) | 63.091 815 |
| 25 BTU/(h·ft²) | 78.864 769 |
| 50 BTU/(h·ft²) | 157.729 54 |
| 100 BTU/(h·ft²) | 315.459 07 |
| 250 BTU/(h·ft²) | 788.647 69 |
| 500 BTU/(h·ft²) | 1577.2954 |
| 1000 BTU/(h·ft²) | 3154.5907 |
Frequently asked
How many btu per hour square foots are in a watt per square meter?
One watt per square meter equals 0.3169983306 btu per hour square foots (W/m² → BTU/(h·ft²)). That figure is exact, not rounded.
How do you convert watt per square meters to btu per hour square foots?
Multiply the number of watt per square meters by 0.316998330628 to get btu per hour square foots.
What is 1 BTU/(h·ft²) in watt per square meters?
One btu per hour square foot is 3.154590745 watt per square meters.
What is 10 W/m² in BTU/(h·ft²)?
10 W/m² = 3.169 983 3 BTU/(h·ft²).