Watt/square meter·kelvins to BTU/hour·square foot·°Fs (W/m²·K to BTU/h·ft²·°F)
Free online watt/square meter·kelvin to btu/hour·square foot·°f converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
HEAT TRANSFER COEFFICIENT CONVERTER — INSTANT RESULT
Formula: multiply the watt/square meter·kelvin value by 0.17611018 — i.e. BTU/h·ft²·°F = W/m²·K × 0.17611018
Quick check: 1 W/m²·K = 0.17611018 BTU/h·ft²·°F
Quick check: 1 W/m²·K = 0.17611018 BTU/h·ft²·°F
Watt/square meter·kelvins to BTU/hour·square foot·°Fs conversion table
| Watt/square meter·kelvins (W/m²·K) | BTU/hour·square foot·°Fs (BTU/h·ft²·°F) |
|---|---|
| 1 W/m²·K | 0.17611018 BTU/h·ft²·°F |
| 2 W/m²·K | 0.35222037 BTU/h·ft²·°F |
| 3 W/m²·K | 0.52833055 BTU/h·ft²·°F |
| 4 W/m²·K | 0.70444073 BTU/h·ft²·°F |
| 5 W/m²·K | 0.88055092 BTU/h·ft²·°F |
| 6 W/m²·K | 1.0566611 BTU/h·ft²·°F |
| 7 W/m²·K | 1.23277129 BTU/h·ft²·°F |
| 8 W/m²·K | 1.40888147 BTU/h·ft²·°F |
| 9 W/m²·K | 1.58499165 BTU/h·ft²·°F |
| 10 W/m²·K | 1.76110184 BTU/h·ft²·°F |
| 15 W/m²·K | 2.64165276 BTU/h·ft²·°F |
| 20 W/m²·K | 3.52220367 BTU/h·ft²·°F |
| 25 W/m²·K | 4.40275459 BTU/h·ft²·°F |
| 30 W/m²·K | 5.28330551 BTU/h·ft²·°F |
| 40 W/m²·K | 7.04440735 BTU/h·ft²·°F |
| 50 W/m²·K | 8.80550918 BTU/h·ft²·°F |
| 75 W/m²·K | 13.20826378 BTU/h·ft²·°F |
| 100 W/m²·K | 17.61101837 BTU/h·ft²·°F |
| 250 W/m²·K | 44.02754592 BTU/h·ft²·°F |
| 500 W/m²·K | 88.05509184 BTU/h·ft²·°F |
| 1,000 W/m²·K | 176.11018369 BTU/h·ft²·°F |
How to convert watt/square meter·kelvins to btu/hour·square foot·°fs
To convert watt/square meter·kelvins to btu/hour·square foot·°fs, multiply the amount in watt/square meter·kelvins by 0.17611018. For example, 10 W/m²·K = 1.76110184 BTU/h·ft²·°F. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert U-values and convective heat transfer coefficients between W/m²·K and BTU/h·ft²·°F. Natural convection in air is roughly 5–25 W/m²·K.
Frequently asked questions
How many btu/hour·square foot·°fs are in one watt/square meter·kelvin?
One watt/square meter·kelvin is exactly 0.17611018 btu/hour·square foot·°fs.
How do I convert W/m²·K to BTU/h·ft²·°F?
Multiply the W/m²·K value by 0.17611018 to get BTU/h·ft²·°F. The converter at the top of this page does this automatically and works in both directions.
How much is 100 watt/square meter·kelvins in btu/hour·square foot·°fs?
100 watt/square meter·kelvins equals 17.61101837 btu/hour·square foot·°fs.