Mass per area
Sheet mass and surface density.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert kilogram per square metre (kg/m²) to tonne per square metre (t/m²). Enter a value for an instant result, or use the examples and reverse conversion below.
Sheet mass and surface density.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a kilogram per square metre value to calculate tonne per square metre with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| gram per square metrefrom kg/m² | g/m² | 1000 |
| kilogram per square metrefrom kg/m² | kg/m² | 1 |
| tonne per square metrefrom kg/m² | t/m² | 0.001 |
| ounce per square footfrom kg/m² | oz/ft² | 3.27706 |
| pound per square footfrom kg/m² | lb/ft² | 0.204816 |
| pound per square inchfrom kg/m² | lb/in² | 0.00142233 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Kilogram Per Square Metre (kg/m²) and tonne per square metre (t/m²) are units of mass per area. Use this page to convert in either direction.
| Kilogram Per Square Metre (kg/m²) | Tonne Per Square Metre (t/m²) |
|---|---|
| 1 kg/m² | 0.001 t/m² |
| 5 kg/m² | 0.005 t/m² |
| 10 kg/m² | 0.01 t/m² |
| 100 kg/m² | 0.1 t/m² |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
t/m² to kg/m² (tonne per square metre to kilogram per square metre)