Quick reference table
Common thermal diffusivity conversions
| From | To |
|---|---|
| 1 mm²/s | 0.03875007750 ft²/h |
| 1 ft²/h | 25.8064 mm²/s |
| 1 cm²/s | 0.0001 m²/s |
| 1 m²/h | 277.7777778 mm²/s |
How to convert thermal diffusivity
Thermal diffusivity tells how quickly heat spreads through a material. It equals thermal conductivity divided by density and specific heat.
Every thermal diffusivity unit is a fixed multiple of one base unit, the m²/s. To convert a value, multiply it by the size of the starting unit and divide by the size of the target unit. For example, to convert mm²/s to ft²/h, multiply by 0.03875007750. To go the other way, divide by 0.03875007750.
The converter above does this for you and shows the exact formula under the result.
Worked examples
Square millimeters per second to Square feet per hour
| Square millimeters per second (mm²/s) | Square feet per hour (ft²/h) |
|---|---|
| 1 mm²/s | 0.03875007750 ft²/h |
| 2 mm²/s | 0.07750015500 ft²/h |
| 5 mm²/s | 0.1937503875 ft²/h |
| 10 mm²/s | 0.3875007750 ft²/h |
| 25 mm²/s | 0.9687519375 ft²/h |
| 50 mm²/s | 1.937503875 ft²/h |
| 100 mm²/s | 3.875007750 ft²/h |
| 1,000 mm²/s | 38.75007750 ft²/h |
Square feet per hour to Square millimeters per second
| Square feet per hour (ft²/h) | Square millimeters per second (mm²/s) |
|---|---|
| 1 ft²/h | 25.8064 mm²/s |
| 2 ft²/h | 51.6128 mm²/s |
| 5 ft²/h | 129.0320 mm²/s |
| 10 ft²/h | 258.0640 mm²/s |
| 25 ft²/h | 645.1600 mm²/s |
| 50 ft²/h | 1,290.3200 mm²/s |
| 100 ft²/h | 2,580.6400 mm²/s |
| 1,000 ft²/h | 25,806.4000 mm²/s |
Thermal diffusivity units explained
| Unit | Symbol | Equals |
|---|---|---|
| Square meters per second | m²/s | 1 m²/s = 1 m²/s |
| Square meters per hour | m²/h | 1 m²/h = 0.000277777777778 m²/s |
| Square centimeters per second | cm²/s | 1 cm²/s = 0.0001 m²/s |
| Square millimeters per second | mm²/s | 1 mm²/s = 0.000001 m²/s |
| Square feet per second | ft²/s | 1 ft²/s = 0.09290304 m²/s |
| Square feet per hour | ft²/h | 1 ft²/h = 0.0000258064 m²/s |
| Square inches per second | in²/s | 1 in²/s = 0.00064516 m²/s |
Popular conversions: ft2/h to m2/s, mm2/s conversion.
Frequently asked questions
How many mm²/s is 1 cm²/s?
One square centimeter per second is 100 square millimeters per second.
How do I convert mm²/s to ft²/h?
Multiply the value in mm²/s by 0.03875007750 to get ft²/h. For example, 10 mm²/s = 0.3875007750 ft²/h.
How many ft²/h is 1 mm²/s?
1 mm²/s = 0.03875007750 ft²/h, and 1 ft²/h = 25.8064 mm²/s.
Does this thermal diffusivity converter work offline?
Yes. After the page has loaded once, all calculations run in your browser, so it keeps working without an internet connection.