Convert Milligrams per square metre per hour to Kilograms per square metre per second
Convert Milligrams per square metre per hour (mg/(m²·h)) to Kilograms per square metre per second (kg/(m²·s)) instantly and accurately.
Conversion Formula
kg/(m²·s) = mg/(m²·h) × 2.777777778e-10
About Milligrams per square metre per hour
The milligram per square metre per hour (mg/(m²·h)) equals 10⁻⁶/3600 ≈ 2.778 × 10⁻¹⁰ kg/(m²·s). It is the standard unit in corrosion science and protective-coating industry for measuring corrosion rate or moisture vapour transmission rate (MVTR) of membranes and packaging films. Rates of 1-100 mg/(m²·h) are typical for polymer films. 1 mg/(m²·h) = 10⁻³ g/(m²·h).
About Kilograms per square metre per second
The kilogram per square metre per second (kg/(m²·s)) is the SI coherent unit of mass flux density, equal to 1 kg·m⁻²·s⁻¹. It appears directly in the continuity equation (ṁ = ρv) and in Stefan's law for evaporation. Rocket nozzle throat mass flux can reach 500-2000 kg/(m²·s); convective heat exchangers: 100-500 kg/(m²·s). 1 kg/(m²·s) = 1 000 g/(m²·s).
Quick Reference Table
| Milligrams per square metre per hour (mg/(m²·h)) | Kilograms per square metre per second (kg/(m²·s)) |
|---|---|
| 1 mg/(m²·h) | 2.778 × 10-10 kg/(m²·s) |
| 2 mg/(m²·h) | 5.556 × 10-10 kg/(m²·s) |
| 5 mg/(m²·h) | 1.389 × 10-9 kg/(m²·s) |
| 10 mg/(m²·h) | 2.778 × 10-9 kg/(m²·s) |
| 25 mg/(m²·h) | 6.944 × 10-9 kg/(m²·s) |
| 50 mg/(m²·h) | 1.389 × 10-8 kg/(m²·s) |
| 100 mg/(m²·h) | 2.778 × 10-8 kg/(m²·s) |