Convert Grams per square metre per hour to Milligrams per square metre per second
Convert Grams per square metre per hour (g/(m²·h)) to Milligrams per square metre per second (mg/(m²·s)) instantly and accurately.
Conversion Formula
mg/(m²·s) = g/(m²·h) × 0.2777777778
About Grams per square metre per hour
The gram per square metre per hour (g/(m²·h)) equals 10⁻³/3600 ≈ 2.778 × 10⁻⁷ kg/(m²·s). It is widely used in textile and paper engineering for moisture management, evaporation studies, and water-vapour transmission rate (WVTR) testing of barrier materials per ISO 2528 and ASTM E96. Breathable fabrics range 500-10 000 g/(m²·h) (=500-10 000 gsm/h). 1 g/(m²·h) = 10⁻³ kg/(m²·h).
About Milligrams per square metre per second
The milligram per square metre per second (mg/(m²·s)) equals 10⁻⁶ kg/(m²·s). It is used in aerosol science and atmospheric deposition studies for measuring dry deposition fluxes of particulate matter. Typical urban PM2.5 dry deposition velocities produce fluxes of 0.01-1 mg/(m²·s). 1 mg/(m²·s) = 3 600 mg/(m²·h).
Quick Reference Table
| Grams per square metre per hour (g/(m²·h)) | Milligrams per square metre per second (mg/(m²·s)) |
|---|---|
| 1 g/(m²·h) | 0.277778 mg/(m²·s) |
| 2 g/(m²·h) | 0.555556 mg/(m²·s) |
| 5 g/(m²·h) | 1.38889 mg/(m²·s) |
| 10 g/(m²·h) | 2.77778 mg/(m²·s) |
| 25 g/(m²·h) | 6.94444 mg/(m²·s) |
| 50 g/(m²·h) | 13.8889 mg/(m²·s) |
| 100 g/(m²·h) | 27.7778 mg/(m²·s) |