Square meters per hour to square millimeters per second
Type a value in m²/h to get it in mm²/s instantly.
3,250mm²/s
That's 29× as quick to heat through as copper — nothing on our list beats it. Heat soaks about 1 cm into it in 0.03077 seconds.
What it means
How fast does heat spread?
Values are typical at room temperature. Diffusivity falls in most metals as they heat up.
The math
How to convert m²/h to mm²/s
To convert square meters per hour to square millimeters per second, multiply by 277.778.
Example: 11.7 m²/h × 277.778 = 3,250 mm²/s.
In the other direction, 1 mm²/s = 0.0036 m²/h.
Every unit
Your diffusivity in every unit
Tables
m²/h to mm²/s conversion table
| m²/h | mm²/s |
|---|---|
| 0.1 m²/h | 27.7778 mm²/s |
| 0.14 m²/h | 38.8889 mm²/s |
| 0.2 m²/h | 55.5556 mm²/s |
| 0.5 m²/h | 138.889 mm²/s |
| 1 m²/h | 277.778 mm²/s |
| 2 m²/h | 555.556 mm²/s |
| 4 m²/h | 1,111.11 mm²/s |
| 10 m²/h | 2,777.78 mm²/s |
| 20 m²/h | 5,555.56 mm²/s |
| 50 m²/h | 13,888.9 mm²/s |
| 100 m²/h | 27,777.8 mm²/s |
| 200 m²/h | 55,555.6 mm²/s |
mm²/s to m²/h conversion table
| mm²/s | m²/h |
|---|---|
| 0.1 mm²/s | 0.00036 m²/h |
| 0.14 mm²/s | 0.000504 m²/h |
| 0.2 mm²/s | 0.00072 m²/h |
| 0.5 mm²/s | 0.0018 m²/h |
| 1 mm²/s | 0.0036 m²/h |
| 2 mm²/s | 0.0072 m²/h |
| 4 mm²/s | 0.0144 m²/h |
| 10 mm²/s | 0.036 m²/h |
| 20 mm²/s | 0.072 m²/h |
| 50 mm²/s | 0.18 m²/h |
| 100 mm²/s | 0.36 m²/h |
| 200 mm²/s | 0.72 m²/h |
Quick answers
Quick answers
- How many mm²/s is 1 m²/h?
- 1 m²/h is 277.778 mm²/s.
- How many mm²/s is 10 m²/h?
- 10 m²/h is 2,777.78 mm²/s.
- How many mm²/s is 11.7 m²/h?
- 11.7 m²/h is 3,250 mm²/s.
The units
About these units
Square meters per hour (m²/h)
Used in building physics.
Square millimeters per second (mm²/s)
The handiest size for most materials.
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