STRUCTURAL
Mass per area
Sheet mass and surface density.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Resultg/m² → t/m²Convert gram per square metre to tonne per square metre
EVERYDAY · ENGINEERING · SCIENCE
Unit conversion. Made clear.
Start with a familiar unit, type a value, and get a dependable answer with sensible precision. Fractions and scientific notation are welcome.
520units ready to convert
HOW IT IS CALCULATED
Convert through kilogram per square metre
Enter a gram per square metre value to calculate tonne per square metre with full internal precision before display rounding.
Display precisionAuto · 12 significant digits
Auto keeps up to 12 significant digits, trims unnecessary zeroes, and switches to scientific notation for extreme magnitudes.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| gram per square metrefrom g/m² | g/m² | Interactive |
| kilogram per square metrefrom g/m² | kg/m² | Interactive |
| tonne per square metrefrom g/m² | t/m² | Interactive |
| ounce per square footfrom g/m² | oz/ft² | Interactive |
| pound per square footfrom g/m² | lb/ft² | Interactive |
| pound per square inchfrom g/m² | lb/in² | Interactive |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.